PC Peripherals Name of Chips Used on Memory Modules
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ALL COPY & PASTE FROM sysxtreme.com and credit goes to "iloveamd64" a elite user of that forum
Winbond Ram Chips
BH-5 – The most famous of the Winbond chips, or possibly the most famous ram ever! These chips are known to love voltage, which in turn gets you extremely tight timings and great frequencies. Most BH-5 can do around 250 MHz at cas2-2-2-X. This usually requires around 3.2-3.4 volts. BH-5 has gone as high as 280 MHz or so, but this is very difficult to achieve. This ram can be identified as having the last three characters on the chip as BH-5. It has been out of production for well over a year now, so it is very difficult to find. If your motherboard does not offer above 2.8 volts, this ram is probably not for you. With the use DDR booster, this stuff can really shine. BH-5 can be found most notably in Mushkin Black Level ram, Kingston Hyper X, Corsair XMS, TwinMos, Buffalo and a few Value Ram varieties. The possibility of finding this ram on a store shelve today is almost non-existent.
CH-5 – This is a newer ram chip than BH-5 and on average cannot achieve the results BH-5 can. It is known to do around 220-230 MHz at cas2-3-2-X. This ram is a little different than BH-5 as it does not respond as well to voltage. Usually, anything over 3 volts does not yield any better results. This could be due to the manufacturer's PCB design, or simply the ram chips themselves. In some cases, however, this ram can achieve similar results to BH-5, it just does not happen very often. This is still great ram for the money and can most likely achieve cas2-2-2-X at 200 MHz with the right voltage applied. This ram is easier to find than BH-5 and usually costs a fraction of what BH-5 costs. It can be identified by the last 3 characters on the chip reading CH-5. It can be found in Corsair XMS, Kingston Hyper X, and many other offerings.
BH-6 – This is the 6ns version of the BH-X series. This ram performs very well, and in some cases, as well as BH-5 ram. Like its 5ns brother, it loves voltage and can achieve high frequency with cas2-2-2-X timings. BH-6 can usually clock to around 240-250 MHz with about 3.2-3.4 volts and still retain the tight timings. This is even harder to find than BH-5 as it is also out of production and was not produced for as long. One thing to note about this ram is that since it is 6ns rather than 5ns, you will mostly find it in PC2700 or DDR333 speeds. This is nothing to be worried about. As I said earlier, it can clock nearly as high as BH-5. Also, if 2.8 volts is your motherboard’s limit, you might want to look elsewhere. This ram can be identified by the last three characters being BH-6 on the chips. This is most commonly found in Mushkin Special 2-2-2, Corsair XMS, Kingston Hyper X, and various Value Ram models. It has been known to show up in Kingston Value Ram PC2700.
CH-6 – This is the 6ns version of the CH-X series ram. Although the cards are against a good overclock on this ram, it does alright. It performs very similar to CH-5 ram in most respects, despite its greater latency rating. Figure on about 220 MHz at somewhat tight timings such as cas2-3-2-X. This ram offers a great value, as it is usually found in less expensive modules. You can find CH-6 in some Kingston Value Ram, Corsair Value Ram and Mushkin Basic. For these prices, it is a steal.
UTT – This is the newest of the Winbond ram. It is very similar to BH-5, but requires a little more voltage. UTT ram can achieve the clocks that BH-5 can, but also requires more voltage. Most people recommend using around 3.4-3.6 volts for this ram. One thing this has over BH-5 is that its overclock is not hindered by the fact that it is double sided ram rather than single sided. BH-5 did its best when 2x256mb modules were used, and this UTT ram can achieve the same clocks using 2x512mb modules. This is very handy, as 2x256mb ram is considered not enough by most of today’s standards. One area where this ram falls short of BH-5 is that it is slightly inconsistent. BH-5 is as close to guaranteed results as you can get, where as this ram is somewhat of a hit or miss. It is also much more complicated to identify. Most people look for two small dimples in the ram chips themselves, as the ram will not say UTT on it. You must look for the winbond characteristics, which can be a real chore. Once you find a set of this, apply the right voltage, you could very well have a 1gb set of ram that will do 275 MHz at cas2-2-2-X. These ram chips are commonly found in OCZ Gold VX series, OCZ Value VX series, TwinMos Speed Premium series, Mushkin Blue and some other various Value Ram selections. This ram is very inexpensive if you can find it in the value series offerings. Figure on about $150 for 1gb of it. If you are not willing to take the risk, I would probably suggest finding some BH-5 on the used market. Update on UTT It seems there are two flavors to not in the UTT. There are the BH type chips and the CH type chips according to a few sources. The only real difference is the BH type requires less voltage at lower speeds such as 200mhz. The CH type requires at least 3 volts usually to boot at 200mhz 2-2-2. In the end, the two tend to overclock the same with the same amount of voltage. If you are on a lower voltage system, try to find the BH type chips.
Hynix Ram Chips
D43 – This is probably the most common Hynix ram and is easy to find. This ram offers very high frequencies, but at the cost of sacrificing timings. D43 is rated at DDR400, or PC3200. Hynix D43 ram can usually clock up to around 260-270 MHz at latencies of cas3-4-4-8. This ram is often called “Intel ram,†as Intel setups benefit from higher memory bandwidth and are less dependent on latencies. This might not be the ideal ram choice for an Athlon XP setup. Unlike Windbond ram, this ram requires relatively low voltages to operate at its best. D43 usually operates at its best at around 2.8 volts. This makes it a great choice for anyone not wishing to mod their motherboard, or get a DDR Booster. This ram can be identified by the last 5 characters of the part number being BT-D43, CT-D43 or DT-D43. There are different revisions of this ram, and usually the later revisions clock higher. In this case, the DT-D43 would be favorable. This ram is found in lots of PC4000 models such as Kingston Hyper X, Corsair XMS, Patriot and many other offerings.
D5 – This ram is similar to the D43, but offers higher clocks and tighter timings. D5 is rated at DDR500, or PC4000. This is not necessarily guaranteed, but on average, D5 seems to clock to around 270-280 MHz, and in some cases can approach the 300 MHz mark. At 250 MHz, the timings are usually around cas2.5-4-4-7, instead of the D43’s cas3-4-4-8. This makes it a better choice if you can afford it. Where D43 is usually considered as “Intel ram,†the D5 is arguably a great choice for Athlon 64 setups and Intel setups. Once again, for Athlon XP, Winbond offerings might be a better choice. Like its brother D43, this ram does best at 2.8 volts. Another area this ram shines is at lower frequencies, the timings can be tightened almost to the point of being comparable with Winbond chips. This ram is capable of cas2-3-3-X at around 210-220 MHz. Because of this, it is a very versatile ram and would make a good choice for almost any system. D5 can be identified as saying BT-D50, CT-D50 or DT-D50 in the end of the number on the ram chips. The latest revision, DT-D50 has been known to run cas2-2-2-X at 200 MHz, making it comparible to TCCD. It also clocks very high, sometimes above 300 MHz. This ram can be found on OCZ PC4000 rev. 2, Corsair XMS and various other offerings. It is not the cheapest ram in the world, but well worth the price for it
Micron Ram Chips
-5B C – I'll start by saying this memory should be much more popular than it is. This memory is knows to clock well with very tight timings. This memory can usually achieve about 230 MHz at cas2.5-2-2-X. The cas latency is not the lowest of the bunch, but the TRD and the TRP latencies are quite good. There have been instances where this ram has clocked higher, much higher, but it is somewhat inconsistent according to other forum members. The nice thing about this ram is the price. It can be found in many value rams with the most notable being Buffalo Technologies. This memory also responds well to voltage. At about 3 volts is where it seems to hit its sweet spot. Much higher does not yield any better results. This ram is pretty easy to idenfify as the part number will say "-5B C" directly on the chips. This ram is found in many flavors of the PC3200 including Buffalo, Crucial, OCZ and a few others.
-5B G - This is a newer revision of the -5B C ram. It is still 5ns ram, but can clock higher than its earlier brother. This is the ram commonly found in Crucial Ballistix that has earned quite a reputation for doing very high clocks with great latencies. It can be considered as somewhat of an "in-between" ram, meaning it does pretty decent timings with pretty decent frequencies. Most revision G ram does about 250-260, but can retain the timings of cas2.5-2-2-X. This is better timings than many of the Hynix offerings, but you will pay a price for it. Currently, 1gb of the Ballistix is around $250 USD. If you can find these chips on any other sort of Value ram, it is QUITE the bargain. It also seems to be less picky of a motherboard than some of its competitors. Identifying this ram is just like the rest...the part number will be -5B G on the ram chips themselves. Like I mentioned earlier, it is found in Ballistix and some, but not many Value ram offerings.
Infineon Ram Chips
B5 - This is 5ns ram from Infineon. It is not very popular, as it usually only comes on Corsair XMS3200 rev. 3.1 ram. The native timings at 200 MHz are cas2-3-3-6. This is decent for 200 MHz, but certainly there are faster chips out there. As far as overclocking is concerned, this ram does not exactly impress. Results are very similar to CH-6 Winbond ram, only the CH-6 can usually retain tighter timings across the frequencies. Figure on about 220-230 MHz. This ram responds to voltage, but nothing extreme like Winbond ram. From what I have seen, anything over about 2.9-3.0 volts is somewhat of a waste of time. This ram can also be found in some Value Ram offerings, but not very likely. It can be identified as the last characters on the chip saying B-5.
BT-6 - This is similar to the B-5, but rather it is 6ns. Overclocking results are slightly less favorable than the B-5, as it is rated at 166 MHz. This ram can commonly be found on Value Rams such as Kingston KVR2700. I was able to push this ram to around 215 MHz before I encountered problems. Timings at this overclocked speed were cas2.5-3-3-11. This is as to be expected since these chips are becoming outdated and really only meant to run at 166 MHz. A benefit to the Infineon BT-6 is that most of them have no trouble at all running 200 MHz. So, you are getting PC3200 ram for the price of PC2700. This is not a bad way to go at all. It did, however, need increased voltage and relaxed timings to achieve this speed. Unfortunately, this ram is pretty uncommon, but makes a decent choice if you can get a good deal on it. Usually, KVR2700 is very affordable on the used market. These can be identified by the last three characters on the chip saying BT-6.
Samsung Ram Chips
TCB3 - This is 6ns ram from Samsung commonly found on cas2-2-2-X PC2700 modules. It can hold very tight timings, and clock somewhat high. It is found in some PC3200 modules as well, but not rated at cas2-2-2-X. At 200 MHz, latencies are increased to cas2-3-3-6. While this is still respectable, it is nothing out of the ordinary. As far as overclocking goes, this ram can usually clock to around 230 MHz, which is pretty surprising as it is rated at 166 MHz. In fact, this can be found on some OCZ PC3700 modules! This ram would make a great choice if your front side bus frequency is limited to about 180 MHz or less, as the ultra tight timings will give a nice performance boost when compared to regular ram. It would still make great ram for overclocking past 200 MHz, but there are better choices to be had. As far as voltages, it is pretty much standard in that anything past 3.0 volts do not yield any greater results. This ram can be found in Corsair XMS2700, XMS3200, Kingston Hyper X PC2700, Mushkin PC3200, TwinMos and OCZ offerings. As you can see, it is pretty common and easy to find. On the used market, you can probably get a pretty good deal on it. Like other Samsung ram chips, you can identify it by reading “TCB3†on the chips themselves.
TCCC - TCCC is the revision “C†of the “TCC†line from Samsung. This ram is very versatile, meaning it can achieve pretty high frequency or pretty decent timings. This ram can clock to around 250-260 MHz on average. Timings at these speeds are usually cas3-4-4-8, unfortunately. This ram can be run at 200 MHz, however, and still keep timings such as cas2.5-3-3-6. This makes it a good all around ram that can be had for a relatively low price. You can find TCCC in PC3200 ram up through PC4000 ram. The only draw back to getting this in the PC4000 flavor is that it is very close to the end of its frequency already. The Kingston Hyper X PC4000 module I had containing TCCC only clocked to around 255 MHz before reaching its limit. It is somewhat responsive to voltage, but didn’t seem to budge after 2.8 volts or more was applied. You can also find this ram in Corsair XMS3700, Samsung PC3200 and many other Value Ram offerings. Overall, this ram is very similar to the Hynix D43 offerings, but the D43 outclocks this ram more often than not. If you can get this in a PC3200 Value Ram, you will get a great deal. Buying this in the PC4000 speed may not be the best idea.
TCC4 - Another offering from Samsung, this ram is pretty unpopular. It can be found on various PC3200 Value rams, as well as some PC2700 offerings. This is not the best overclocking choice, as it usually tops out around 210-220 MHz at cas3-3-3-X and requires added voltage to achieve that speed. Like other Samsung ram, it does not help to give extreme voltages. Since this ram is pretty hard to find anyway, it would be a better choice to go with either the TCCC or the D43 from Hynix, as both offer more flexibility and much more overclocking head room. This ram can had in some PC2700 Value Rams, as well as Samsung PC3200 ram. If you can find it in a Value Ram, it will most likely be a good deal. It is not in production anymore, so you would need to look on the used market. Like I mentioned earlier, some of the newer Samsung and Hynix chips would be a better choice. Identifying these chips is straight forward, as they will say “TCC4†on the modules.
TCC5 - This is a newer revision of the “TCC†series from Samsung. It is superior to the TCC4 in every way. It is commonly found on PC3700 offerings, and offers pretty good overclockability. This ram is rated to run at 233 MHz, so it already starts out higher than the TCC4 can usually clock to. Timings are very respectable at cas2.5-3-3-X depending on the manufacturer. This ram can be overclocked to reach 250 MHz sometimes, if the latencies are increased to cas3-4-4-X. Once again, extreme voltages do not aide in overclocking attempts. This ram is still not as common as the TCCC or the Hynix D43, but can usually found on the used market for a great price. Not a bad choice at all for either Intel or AMD systems, as it can offer good timings at 200 MHz or higher front side bus options. Not the most versatile ram, but certainly better than a lot of other offerings. If you can get your hands on this stuff, it would not make a bad choice, but it is out of production. Update on TCC5 - It looks like some of the newer revision TCC5 is capable of 2-2-2 timings at pc3200. This revision of the TCC5 can be found in Mushkin PC3200 Level 2 V2/V3. It can clock very high as well. Users of this ram have reported it can run 260mhz at 2.5-3-3 with very little voltage. Not a bad choice at all if you cannot get your hands on TCCD.
TCCD - TCCD is another chip that will be remembered for long after its life. This ram has said to be the “BH-5 Replacement.†While some agree, some do not. They are VERY different ram chips, and do their own things very well. TCCD is probably the most versatile ram ever made. It can run up to about 220 MHz while holding super tight timings of cas2-2-2-X. It can also be run up near 300 MHz, while holding very respectable timings of cas2.5-4-4-X. Some people have even gotten above 300 MHz with timings of cas2.5-3-3-X. This is one of the highest clocking rams available today, and is relatively inexpensive for what you get. TCCD responds to voltage, but never really needs much of an increase to do its best. People have said that running it at 3.0 volts will help, but I have never achieved higher success going past 2.8 volts. This is especially useful, as 2.8 volts seems to be the maximum offered by most motherboards. The fact that this ram can run at 300 MHz on an UN-modded board is simply amazing. It makes it a great choice for everyone, regardless of what your setup may be. It has been argued that BH-5 is still superior. While that may hold true, the ease of running this ram fast makes up for any edge BH-5 may have on it. One complaint is that this ram is very picky when it comes to motherboard compatibility. I have heard that it has a hard time running well on Intel platforms. This ram really shines on the Athlon 64 platform since it is capable of extreme bandwidth. This ram can be found in almost any manufacturer now a days, including Kingston Hyper X, Corsair XMS, Patriot XBL, Mushkin Level 2, G.Skill, PQI Turbo and even Adata. There are specific part numbers in which you will need to take a look at, so head over to the ram list and check the part number of each manufacturer to be sure you are guaranteed to get TCCD. TCCD can also be identified by saying “TCCD†on the ram chips themselves. Get this stuff while you can folks, it may become a rarity like BH-5 did.
Mosel Ram Chips
Vitelic 5ns - This is 5ns ram from Mosel. It is commonly found in PC3200 offerings, and at this speed is rated at cas2-3-3-6. This is not bad, but nothing out of the ordinary. It is similar to CH-5 from Winbond. This ram can clock to around 240 MHz and hold decent timings such as cas2.5-3-3-6. If timings are kept at 2-3-2-X, then this ram will typically max out around 220 MHz. This can be found in Corsair XMS3200, Geil Ultra PC3200 and PC3500, OCZ PC3200 and PC3700. This is not a bad choice of ram at all. It offers great overclockability while still holding very respectable timings. Although Mosel is not a well known name in the memory industry, you can see that the top memory manufacturers are using their ram. If you can get these on the used market, they would make a very sweet deal. I have not seen these in Value Ram offerings, but that does not mean they do not exist. Identifying these can be somewhat difficult, as many companies re-label them. Take a look at the ram list to be sure of what modules contain these chips. You can identify these chips by the last 5 characters being SAT5B.
hope this helps and bloody hell my finger hurt lol...
Winbond Ram Chips
BH-5 – The most famous of the Winbond chips, or possibly the most famous ram ever! These chips are known to love voltage, which in turn gets you extremely tight timings and great frequencies. Most BH-5 can do around 250 MHz at cas2-2-2-X. This usually requires around 3.2-3.4 volts. BH-5 has gone as high as 280 MHz or so, but this is very difficult to achieve. This ram can be identified as having the last three characters on the chip as BH-5. It has been out of production for well over a year now, so it is very difficult to find. If your motherboard does not offer above 2.8 volts, this ram is probably not for you. With the use DDR booster, this stuff can really shine. BH-5 can be found most notably in Mushkin Black Level ram, Kingston Hyper X, Corsair XMS, TwinMos, Buffalo and a few Value Ram varieties. The possibility of finding this ram on a store shelve today is almost non-existent.
CH-5 – This is a newer ram chip than BH-5 and on average cannot achieve the results BH-5 can. It is known to do around 220-230 MHz at cas2-3-2-X. This ram is a little different than BH-5 as it does not respond as well to voltage. Usually, anything over 3 volts does not yield any better results. This could be due to the manufacturer's PCB design, or simply the ram chips themselves. In some cases, however, this ram can achieve similar results to BH-5, it just does not happen very often. This is still great ram for the money and can most likely achieve cas2-2-2-X at 200 MHz with the right voltage applied. This ram is easier to find than BH-5 and usually costs a fraction of what BH-5 costs. It can be identified by the last 3 characters on the chip reading CH-5. It can be found in Corsair XMS, Kingston Hyper X, and many other offerings.
BH-6 – This is the 6ns version of the BH-X series. This ram performs very well, and in some cases, as well as BH-5 ram. Like its 5ns brother, it loves voltage and can achieve high frequency with cas2-2-2-X timings. BH-6 can usually clock to around 240-250 MHz with about 3.2-3.4 volts and still retain the tight timings. This is even harder to find than BH-5 as it is also out of production and was not produced for as long. One thing to note about this ram is that since it is 6ns rather than 5ns, you will mostly find it in PC2700 or DDR333 speeds. This is nothing to be worried about. As I said earlier, it can clock nearly as high as BH-5. Also, if 2.8 volts is your motherboard’s limit, you might want to look elsewhere. This ram can be identified by the last three characters being BH-6 on the chips. This is most commonly found in Mushkin Special 2-2-2, Corsair XMS, Kingston Hyper X, and various Value Ram models. It has been known to show up in Kingston Value Ram PC2700.
CH-6 – This is the 6ns version of the CH-X series ram. Although the cards are against a good overclock on this ram, it does alright. It performs very similar to CH-5 ram in most respects, despite its greater latency rating. Figure on about 220 MHz at somewhat tight timings such as cas2-3-2-X. This ram offers a great value, as it is usually found in less expensive modules. You can find CH-6 in some Kingston Value Ram, Corsair Value Ram and Mushkin Basic. For these prices, it is a steal.
UTT – This is the newest of the Winbond ram. It is very similar to BH-5, but requires a little more voltage. UTT ram can achieve the clocks that BH-5 can, but also requires more voltage. Most people recommend using around 3.4-3.6 volts for this ram. One thing this has over BH-5 is that its overclock is not hindered by the fact that it is double sided ram rather than single sided. BH-5 did its best when 2x256mb modules were used, and this UTT ram can achieve the same clocks using 2x512mb modules. This is very handy, as 2x256mb ram is considered not enough by most of today’s standards. One area where this ram falls short of BH-5 is that it is slightly inconsistent. BH-5 is as close to guaranteed results as you can get, where as this ram is somewhat of a hit or miss. It is also much more complicated to identify. Most people look for two small dimples in the ram chips themselves, as the ram will not say UTT on it. You must look for the winbond characteristics, which can be a real chore. Once you find a set of this, apply the right voltage, you could very well have a 1gb set of ram that will do 275 MHz at cas2-2-2-X. These ram chips are commonly found in OCZ Gold VX series, OCZ Value VX series, TwinMos Speed Premium series, Mushkin Blue and some other various Value Ram selections. This ram is very inexpensive if you can find it in the value series offerings. Figure on about $150 for 1gb of it. If you are not willing to take the risk, I would probably suggest finding some BH-5 on the used market. Update on UTT It seems there are two flavors to not in the UTT. There are the BH type chips and the CH type chips according to a few sources. The only real difference is the BH type requires less voltage at lower speeds such as 200mhz. The CH type requires at least 3 volts usually to boot at 200mhz 2-2-2. In the end, the two tend to overclock the same with the same amount of voltage. If you are on a lower voltage system, try to find the BH type chips.
Hynix Ram Chips
D43 – This is probably the most common Hynix ram and is easy to find. This ram offers very high frequencies, but at the cost of sacrificing timings. D43 is rated at DDR400, or PC3200. Hynix D43 ram can usually clock up to around 260-270 MHz at latencies of cas3-4-4-8. This ram is often called “Intel ram,†as Intel setups benefit from higher memory bandwidth and are less dependent on latencies. This might not be the ideal ram choice for an Athlon XP setup. Unlike Windbond ram, this ram requires relatively low voltages to operate at its best. D43 usually operates at its best at around 2.8 volts. This makes it a great choice for anyone not wishing to mod their motherboard, or get a DDR Booster. This ram can be identified by the last 5 characters of the part number being BT-D43, CT-D43 or DT-D43. There are different revisions of this ram, and usually the later revisions clock higher. In this case, the DT-D43 would be favorable. This ram is found in lots of PC4000 models such as Kingston Hyper X, Corsair XMS, Patriot and many other offerings.
D5 – This ram is similar to the D43, but offers higher clocks and tighter timings. D5 is rated at DDR500, or PC4000. This is not necessarily guaranteed, but on average, D5 seems to clock to around 270-280 MHz, and in some cases can approach the 300 MHz mark. At 250 MHz, the timings are usually around cas2.5-4-4-7, instead of the D43’s cas3-4-4-8. This makes it a better choice if you can afford it. Where D43 is usually considered as “Intel ram,†the D5 is arguably a great choice for Athlon 64 setups and Intel setups. Once again, for Athlon XP, Winbond offerings might be a better choice. Like its brother D43, this ram does best at 2.8 volts. Another area this ram shines is at lower frequencies, the timings can be tightened almost to the point of being comparable with Winbond chips. This ram is capable of cas2-3-3-X at around 210-220 MHz. Because of this, it is a very versatile ram and would make a good choice for almost any system. D5 can be identified as saying BT-D50, CT-D50 or DT-D50 in the end of the number on the ram chips. The latest revision, DT-D50 has been known to run cas2-2-2-X at 200 MHz, making it comparible to TCCD. It also clocks very high, sometimes above 300 MHz. This ram can be found on OCZ PC4000 rev. 2, Corsair XMS and various other offerings. It is not the cheapest ram in the world, but well worth the price for it
Micron Ram Chips
-5B C – I'll start by saying this memory should be much more popular than it is. This memory is knows to clock well with very tight timings. This memory can usually achieve about 230 MHz at cas2.5-2-2-X. The cas latency is not the lowest of the bunch, but the TRD and the TRP latencies are quite good. There have been instances where this ram has clocked higher, much higher, but it is somewhat inconsistent according to other forum members. The nice thing about this ram is the price. It can be found in many value rams with the most notable being Buffalo Technologies. This memory also responds well to voltage. At about 3 volts is where it seems to hit its sweet spot. Much higher does not yield any better results. This ram is pretty easy to idenfify as the part number will say "-5B C" directly on the chips. This ram is found in many flavors of the PC3200 including Buffalo, Crucial, OCZ and a few others.
-5B G - This is a newer revision of the -5B C ram. It is still 5ns ram, but can clock higher than its earlier brother. This is the ram commonly found in Crucial Ballistix that has earned quite a reputation for doing very high clocks with great latencies. It can be considered as somewhat of an "in-between" ram, meaning it does pretty decent timings with pretty decent frequencies. Most revision G ram does about 250-260, but can retain the timings of cas2.5-2-2-X. This is better timings than many of the Hynix offerings, but you will pay a price for it. Currently, 1gb of the Ballistix is around $250 USD. If you can find these chips on any other sort of Value ram, it is QUITE the bargain. It also seems to be less picky of a motherboard than some of its competitors. Identifying this ram is just like the rest...the part number will be -5B G on the ram chips themselves. Like I mentioned earlier, it is found in Ballistix and some, but not many Value ram offerings.
Infineon Ram Chips
B5 - This is 5ns ram from Infineon. It is not very popular, as it usually only comes on Corsair XMS3200 rev. 3.1 ram. The native timings at 200 MHz are cas2-3-3-6. This is decent for 200 MHz, but certainly there are faster chips out there. As far as overclocking is concerned, this ram does not exactly impress. Results are very similar to CH-6 Winbond ram, only the CH-6 can usually retain tighter timings across the frequencies. Figure on about 220-230 MHz. This ram responds to voltage, but nothing extreme like Winbond ram. From what I have seen, anything over about 2.9-3.0 volts is somewhat of a waste of time. This ram can also be found in some Value Ram offerings, but not very likely. It can be identified as the last characters on the chip saying B-5.
BT-6 - This is similar to the B-5, but rather it is 6ns. Overclocking results are slightly less favorable than the B-5, as it is rated at 166 MHz. This ram can commonly be found on Value Rams such as Kingston KVR2700. I was able to push this ram to around 215 MHz before I encountered problems. Timings at this overclocked speed were cas2.5-3-3-11. This is as to be expected since these chips are becoming outdated and really only meant to run at 166 MHz. A benefit to the Infineon BT-6 is that most of them have no trouble at all running 200 MHz. So, you are getting PC3200 ram for the price of PC2700. This is not a bad way to go at all. It did, however, need increased voltage and relaxed timings to achieve this speed. Unfortunately, this ram is pretty uncommon, but makes a decent choice if you can get a good deal on it. Usually, KVR2700 is very affordable on the used market. These can be identified by the last three characters on the chip saying BT-6.
Samsung Ram Chips
TCB3 - This is 6ns ram from Samsung commonly found on cas2-2-2-X PC2700 modules. It can hold very tight timings, and clock somewhat high. It is found in some PC3200 modules as well, but not rated at cas2-2-2-X. At 200 MHz, latencies are increased to cas2-3-3-6. While this is still respectable, it is nothing out of the ordinary. As far as overclocking goes, this ram can usually clock to around 230 MHz, which is pretty surprising as it is rated at 166 MHz. In fact, this can be found on some OCZ PC3700 modules! This ram would make a great choice if your front side bus frequency is limited to about 180 MHz or less, as the ultra tight timings will give a nice performance boost when compared to regular ram. It would still make great ram for overclocking past 200 MHz, but there are better choices to be had. As far as voltages, it is pretty much standard in that anything past 3.0 volts do not yield any greater results. This ram can be found in Corsair XMS2700, XMS3200, Kingston Hyper X PC2700, Mushkin PC3200, TwinMos and OCZ offerings. As you can see, it is pretty common and easy to find. On the used market, you can probably get a pretty good deal on it. Like other Samsung ram chips, you can identify it by reading “TCB3†on the chips themselves.
TCCC - TCCC is the revision “C†of the “TCC†line from Samsung. This ram is very versatile, meaning it can achieve pretty high frequency or pretty decent timings. This ram can clock to around 250-260 MHz on average. Timings at these speeds are usually cas3-4-4-8, unfortunately. This ram can be run at 200 MHz, however, and still keep timings such as cas2.5-3-3-6. This makes it a good all around ram that can be had for a relatively low price. You can find TCCC in PC3200 ram up through PC4000 ram. The only draw back to getting this in the PC4000 flavor is that it is very close to the end of its frequency already. The Kingston Hyper X PC4000 module I had containing TCCC only clocked to around 255 MHz before reaching its limit. It is somewhat responsive to voltage, but didn’t seem to budge after 2.8 volts or more was applied. You can also find this ram in Corsair XMS3700, Samsung PC3200 and many other Value Ram offerings. Overall, this ram is very similar to the Hynix D43 offerings, but the D43 outclocks this ram more often than not. If you can get this in a PC3200 Value Ram, you will get a great deal. Buying this in the PC4000 speed may not be the best idea.
TCC4 - Another offering from Samsung, this ram is pretty unpopular. It can be found on various PC3200 Value rams, as well as some PC2700 offerings. This is not the best overclocking choice, as it usually tops out around 210-220 MHz at cas3-3-3-X and requires added voltage to achieve that speed. Like other Samsung ram, it does not help to give extreme voltages. Since this ram is pretty hard to find anyway, it would be a better choice to go with either the TCCC or the D43 from Hynix, as both offer more flexibility and much more overclocking head room. This ram can had in some PC2700 Value Rams, as well as Samsung PC3200 ram. If you can find it in a Value Ram, it will most likely be a good deal. It is not in production anymore, so you would need to look on the used market. Like I mentioned earlier, some of the newer Samsung and Hynix chips would be a better choice. Identifying these chips is straight forward, as they will say “TCC4†on the modules.
TCC5 - This is a newer revision of the “TCC†series from Samsung. It is superior to the TCC4 in every way. It is commonly found on PC3700 offerings, and offers pretty good overclockability. This ram is rated to run at 233 MHz, so it already starts out higher than the TCC4 can usually clock to. Timings are very respectable at cas2.5-3-3-X depending on the manufacturer. This ram can be overclocked to reach 250 MHz sometimes, if the latencies are increased to cas3-4-4-X. Once again, extreme voltages do not aide in overclocking attempts. This ram is still not as common as the TCCC or the Hynix D43, but can usually found on the used market for a great price. Not a bad choice at all for either Intel or AMD systems, as it can offer good timings at 200 MHz or higher front side bus options. Not the most versatile ram, but certainly better than a lot of other offerings. If you can get your hands on this stuff, it would not make a bad choice, but it is out of production. Update on TCC5 - It looks like some of the newer revision TCC5 is capable of 2-2-2 timings at pc3200. This revision of the TCC5 can be found in Mushkin PC3200 Level 2 V2/V3. It can clock very high as well. Users of this ram have reported it can run 260mhz at 2.5-3-3 with very little voltage. Not a bad choice at all if you cannot get your hands on TCCD.
TCCD - TCCD is another chip that will be remembered for long after its life. This ram has said to be the “BH-5 Replacement.†While some agree, some do not. They are VERY different ram chips, and do their own things very well. TCCD is probably the most versatile ram ever made. It can run up to about 220 MHz while holding super tight timings of cas2-2-2-X. It can also be run up near 300 MHz, while holding very respectable timings of cas2.5-4-4-X. Some people have even gotten above 300 MHz with timings of cas2.5-3-3-X. This is one of the highest clocking rams available today, and is relatively inexpensive for what you get. TCCD responds to voltage, but never really needs much of an increase to do its best. People have said that running it at 3.0 volts will help, but I have never achieved higher success going past 2.8 volts. This is especially useful, as 2.8 volts seems to be the maximum offered by most motherboards. The fact that this ram can run at 300 MHz on an UN-modded board is simply amazing. It makes it a great choice for everyone, regardless of what your setup may be. It has been argued that BH-5 is still superior. While that may hold true, the ease of running this ram fast makes up for any edge BH-5 may have on it. One complaint is that this ram is very picky when it comes to motherboard compatibility. I have heard that it has a hard time running well on Intel platforms. This ram really shines on the Athlon 64 platform since it is capable of extreme bandwidth. This ram can be found in almost any manufacturer now a days, including Kingston Hyper X, Corsair XMS, Patriot XBL, Mushkin Level 2, G.Skill, PQI Turbo and even Adata. There are specific part numbers in which you will need to take a look at, so head over to the ram list and check the part number of each manufacturer to be sure you are guaranteed to get TCCD. TCCD can also be identified by saying “TCCD†on the ram chips themselves. Get this stuff while you can folks, it may become a rarity like BH-5 did.
Mosel Ram Chips
Vitelic 5ns - This is 5ns ram from Mosel. It is commonly found in PC3200 offerings, and at this speed is rated at cas2-3-3-6. This is not bad, but nothing out of the ordinary. It is similar to CH-5 from Winbond. This ram can clock to around 240 MHz and hold decent timings such as cas2.5-3-3-6. If timings are kept at 2-3-2-X, then this ram will typically max out around 220 MHz. This can be found in Corsair XMS3200, Geil Ultra PC3200 and PC3500, OCZ PC3200 and PC3700. This is not a bad choice of ram at all. It offers great overclockability while still holding very respectable timings. Although Mosel is not a well known name in the memory industry, you can see that the top memory manufacturers are using their ram. If you can get these on the used market, they would make a very sweet deal. I have not seen these in Value Ram offerings, but that does not mean they do not exist. Identifying these can be somewhat difficult, as many companies re-label them. Take a look at the ram list to be sure of what modules contain these chips. You can identify these chips by the last 5 characters being SAT5B.
hope this helps and bloody hell my finger hurt lol...
SCSI
Contributor
/////ALL COPY & PASTE FROM SYSXTREME.COM & CREDIT GOES TO "FRAGTEK" an elite user of that forum//////
This guide shows which IC's are used in todays best memory modules... Remember to spot modules utilizing Samsung 4ns TCCD, Winbond BH-5/6 or UTT as these are going to be the best overclocking IC's.
Note: BH-5 and BH-6 are no longer in production, you will need to verify before purchasing any new sticks listed here if they do indeed still have the Winbond IC's! I don't want someone going out and buying some listed memory at Newegg that says it has BH-5 IC's and get mad at me because it has something different.
Da List:
A-Data
PC2700 (cl2,5) could be Winbond AH-6 or BH-6
PC3200 Winbond CH-5, Samsung TCCC
PC3200 Special Edition Winbond BH-5
PC3700 (non Vitesta, no HS) should Samsung TCC5
PC4000 (3-4-4-8) Hynix D43, D5, Samsung TCCC
PC4000 Vitesta (3-4-4-8) Hynix D43, D5
PC4500 Vitesta Samsung TCCD
PC4800 Vitesta Hynix B
Apacer
PC2700 could be Winbond AH-6
Buffalo
PC3200 may or may not contain Micron 46V32M8 -5B C, 46V32M8 - 5B G look at the chips
PC3700 may or may not contain Winbond BH-5, Micron 46V32M8 -5B C look at the chips
FireStix PC4000 Hynix B
Corsair
XMS-PC2700C2 Rev1.1 (2-3-3-6-1T) maybe Winbond BH-6/Samsung TCB3
XMS-PC2700C2 Rev1.2 (2-3-3-6-1T) Winbond CH-6
XMS-PC2700C2 Rev1.3 (2-3-3-6-1T) Mosel Vitelic (6ns?)
XMS-PC2700C2 Rev2.1 (2-3-3-6-1T) Micron (6ns rev B)/Samsung TCB3
XMS-PC2700LL Rev1.1 (2-2-2-6-1T) Winbond BH-6
XMS-PC2700LL Rev1.2 (2-2-2-6-1T) Winbond CH-6
XMS-PC3000C2 Rev1.1 (2-3-3-6-1T) Samsung TCB3/Micron (6ns rev B) and few Winbond BH-6
XMS-PC3000C2 Rev2.1 (2-3-3-6-1T) should Winbond BH-6
XMS-PC3200C2 Rev1.0 (2-3-3-6-1T) Winbond CH-5
XMS-PC3200C2 Rev1.1/2.1 (2-3-3-6-1T) Winbond BH-6
XMS-PC3200C2 Rev1.2/2.2 (2-3-3-6-1T) Winbond CH-6
XMS-PC3200C2 Rev3.1 (2-3-3-6-1T) Infineon B-5
XMS-PC3200C2 Rev4.1 (2-3-3-6-1T) Samsung TCCD
XMS-PC3200C2 Rev4.2 (2-3-3-6-1T) Samsung TCCD & TCC5
XMS-PC3200LL Rev1.1/2.1 (2-2-2-6-1T) Winbond BH-5
XMS-PC3200LL Rev1.2/2.2 (2-3-2-6-1T) Winbond CH-5
XMS-PC3200LL Rev3.1 (2-3-2-6-1T) Infineon B-5
XMS-PC3200XL Rev1.1 (2-2-2-5-1T) Samsung TCCD
XMS-PC3500C2 Rev1.1 (2-3-3-7-1T) Winbond BH-5
XMS-PC3700 Rev1.1(3-4-4-8-1T) Samsung TCCC
XMS-PC4000 Rev1.1 (3-4-4-8-1T) Hynix D43
XMS-PC4400 Rev1.1 (3-4-4-8-1T) Hynix D5
Crucial
PC3200 may or may not contain Micron 46V32M8 -5B C, 46V32M8 -5B G
Ballistix PC3200 (2-2-2-8) Micron 46V32M8 -5B G (maybe overlabeled)
Ballistix PC4000 (2.5-4-4-8) Micron 46V32M8 -5B G (maybe overlabeled)
GeIL
Value PC3200 Blue (2.5-3-3-6) Infineon 5ns, Hynix D5, D43
Golden Dragon PC3200 (2-3-3-6-1T) WLCSP chip package w/ Samsung chips
Ultra Platinum PC3200 (2-3-3-6-1T) Winbond CH-5, Mosel Vitelic 5ns
Ultra X PC3200 (2-2-2-5-1T) Samsung TCCD (relabeled)
Golden Dragon PC3500 (2.5-3-3-6-1T) WLCSP chip package w/ Samsung chips
Ultra Platinum PC3500 (2.5-3-3-6-1T) Winbond CH-5, Mosel Vitelic 5ns
Golden Dragon PC3700 (2.5-4-4-7-1T) WLCSP chip package w/ Samsung chips
Golden Dragon PC4000 (2.5-4-4-7-1T) WLCSP chip package w/ Samsung chips
Ultra Platinum PC4000 (3-4-4-8-1T) Hynix D43
Ultra Platinum PC4200 (3-4-4-8-1T) Hynix D43
Ultra Platinum PC4400 (3-4-4-8-1T) Hynix D5
Kingston
HyperX PC2700 (2-2-2-5-1T) (KHX 2700) first Samsung TCB3, then Winbond BH-6, CH-6, CH-5, relabeled unknown Chips.
HyperX PC3000 (2-2-2-6-1T) (KHX 3000) first Samsung TCB3, then mainly Winbond BH-5, some BH-6, CH-5, CH-6 (maybe relabeled)
HyperX PC 3200 (old revision, not AK2, K2 or A) (KHX 3200) Winbond BH-5
HyperX PC 3200K2 (2-2-2-6-1T) (KHX 3200K2) Winbond BH-5
HyperX PC 3200AK2 (2-3-2-6-1T) (KHX 3200AK2) Winbond CH-5
HyperX PC 3200ULK2 (2-2-2-5-1T) (KHX 3200ULK2) Samsung TCCD
HyperX PC 3500 (rated 2-3-3-7 @ 433Mhz, 2-2-2-6 @ 400Mhz, old revision) (KHX 3500) Winbond BH-5 (maybe relabeled)
HyperX PC 3500K2 (2-3-3-7) (KHX 3500K2) Winbond CH-5
HyperX PC 4000K2 (3-4-4-8) (KHX 4000K2) Samsung TCCC, Hynix D43, D5
HyperX PC 4300K2 (3-4-4-8) (KHX 4300K2) Hynix D5
Kingston Ram w/remarked Chips as D328DW-45 Before Week 18 Year 03 Winbond BH-5, after CH-5 (18 03 can be both)
Kingston Ram w/remarked Chips as D328DW-5 Winbond BH-5
Kingston Ram w/remarked Chips as D328DW-6 Winbond BH-6
Kingston Ram w/remarked Chips as D328DM-6 should Winbond BH-6
Kingston Ram w/remarked Chips as D328DM-5 should Winbond BH-5
Value Ram 333Mhz (2,5-3-3-*) (KVR333X64C25) may or may not contain Winbond BH-6, AH-6, Hynix D43, D5 look at the chips (maybe relabeled)
Value Ram 400Mhz (2,5-3-3-*) (KVR400X64C25) may or may not contain Winbond BH-5, CH-5, Micron 46V32M8 -5B C, Hynix D43, D5, Samsung TCCC, TCC4 look at the chips (maybe relabeled)
Mushkin
PC2700 (Non Level X, rated 2-3-3, Promo-Build) Winbond CH-6
PC3200 Cl2,5 (Non Level X, non Blue, non Green Serie) Winbond BH-5, Samsung TCB3
PC3200 (Non Level X, rated 2-2-2, Promo-Build) Winbond BH-5
PC3200 Level I (2-3-2) Winbond CH-5
PC3200 Level II (2-2-2) Winbond BH-5 or BH-6
PC3200 Special 2-2-2 Winbond BH-6
PC3200 Level II V2 (2-2-2) Samsung TCCD
PC3500 Level I (2-3-3) Winbond CH-5
PC3500 Level II (2-2-2) Winbond BH-5
OCZ
EL DDR PC3200 Platinum Limited Edition (2-2-2-7) Winbond BH-6
EL DDR PC3200 Platinum Edition (2-3-2-5) Samsung TCB3, ProMOS 5ns (relabeled), Mosel Vitelic 5ns (relabeled), Winbond CH-5
EB DDR PC3200 Platinum Edition (2,5-3-2-8) Micron 46V32M8 -5B C
EL DDR PC3200 Platinum Edition rev2 (2-2-2-6) Samsung 4ns TCCD
EL DDR PC3500 Platinum Limited Edition (2-2-3-6) Winbond BH-5
EL DDR PC3500 Platinum Edition (2-3-2-5) Winbond CH-5, few BH-5
EB DDR PC3500 Platinum Edition (2,5-3-2-8) Micron 46V32M8 -5B C
EL DDR PC3700 Gold Edition rev1 (2-3-3-7) Samsung TCB3 (overlabeled)
EL DDR PC3700 Gold Edition rev2 (2,5-3-3-7) ProMOS 5ns (relabeled) , Mosel Vitelic 5ns (relabeled)
EB DDR PC3700 Platinum Edition (3-2-2-8/3-3-2-8) Micron 46V32M8 -5B C
DDR PC4000 (3-4-4-8) Hynix D5, D43 (relabeled)
DDR PC4200 (3-4-4-8) Hynix D5, D43
DDR PC4400 (3-4-4-8) Hynix D5
EL DDR PC4400 Gold Edition (2,5-4-4-8) Hynix B
Samsung
PC3200 Samsung TCC4, TCCC
PC3700 Samsung TCC5
PC4000 CL3 Samsung TCCD
Shikatronics
ShikaXram PC4400 (3-4-4-8) Hynix B
TwinMos
Twinmos DDR333 (2,5-3-3-6) Samsung TCB3, TCC4 Winbond AH-6, Winbond BH-6, Twinmos, Hynix, Mtec
Twinmos/Winbond DDR400 (2,5-3-3-6) Could be Winbond BH-5, CH-5, look at the chips
Twinmos Twisters DDR500 (TSOP) (3-4-4-8) Hynix D43, Samsung TCCC
Twinmos Twisters DDR533 (3-4-4-8) Hynix D5
Ultra
Extreme Memory PC3200 DDR 400MHZ (2-2-2-5-1T) Winbond BH-5, selected CH-5
SCSI posted 1.88 minutes later:
8) indicates 8
SCSI posted 2.4 minutes later:
/////ALL COPY & PASTE FROM THE REBELS HAVEN COMPUTER FORUM & CREDIT GOES TO "POLYGON" an elite user of that forum//////
It's all in the memory!!!!!!!!!!!!
Aside from the "Can't Get Over "219" Bug", every nF3/nF4 board can overclock to 300+ FSB....
1. 130nm CPU's stop around 2.5Gig, except the FX-55
2. Winchester CPU's stop around 2.65Gig....
3. Venice/San Diego CPU's stop around 2.85Gig
But this is only with the correct memory!
Forget Value RAM. Forget BH-5 and Hynix RAM! TCCD is the only RAM that your can run to 300+FSB at "normal" Vdimm's, but not every brand works!
I bought 6 of the most popular S939 Motherboards, so that I could document their quirks and determine what it takes to get them going, and get them overclocking to respectable levels...
It didn't take long before I realized how fussy the new boards are with brand/model of memory... So I bought around 6 different brands of high performance memory... I tested all the memory on all the different boards to determine which memory brand and model each board likes... The results of those tests are here and here....
A major stumbling block many overclockers of these new boards are running into, are the BIOS settings that the boards will work with, and work well... The new nF3 and nF4 boards have probably double the BIOS settings of previous nF2 boards. And not only are they sensitive to the correct combination of settings, there are settings that just do not work at present and need a BIOS update.... Many users are trying odd combinations of BIOS settings that will just never work well at all, and because they have gotten to 220 FSB, they think they are on the right track... WRONG!
To help this problem I took BIOS screen shots of the critical BIOS windows showing the settings that I used to overclock every board to 9X300FSB, or 2.7Gig. These worked on both FX-55 and Winchester CPU's... Admittedly, the Winchester wasn't 100% stable on all boards at these settings, but they POST and boot at the settings... The BIOS screen shots are "sticky" topics in each A64 motherboard sector...
The toughest idea for new A64 board owners to accept is that the memory they have used at great settings on 32 bit boards, doesn't work worth a damn on their new board... Forget "Value RAM" if you expect to clock to 300FSB... Forget memory with Hynix Chips that are typically used in PC4000 to PC4500... Only a very few members have gotten the new boards to clock to 300FSB with Hynix Chip memory... Forget Mushkin memory with BH-5 chips unless your prepared to run 3.6Vdimm!.... The nF3/nF4 boards only like "TCCD" memory, but not every brand... I must emphasise that all brands of "TCCD" memory are not equal and that all brands of "TCCD" memory will not overclock well. I have 1 brand of TCCD memory that will not even run at 200FSB on a particular nF4 board!
Another quirk of these boards that is tough to accept, is that what works for one board user, may not work for another board user, with the exact same components... Right now I only know of two brands/models of memory that that happens with... But they are both with the same board...!
A good place to start are the 64 bit topics in the OverClocking Tips, Techniques and Theory sector... In particular the ones that explain what the new BIOS setting are and do. Look here , here , to list just a few...
Right now on a very small sample, the stepping appears to me to make little or no difference....
I have read litterly hundreds of threads at the big Overclocking Forums complaining about various steppings and date codes, and was starting to accumulate some data on the Winchester series...
Then I ran into a thread where the issue was with the exact same CPU I am using at 9X300, on several of my nF3 and nF4 boards...!
Then I realized that the problems are not with the CPU, but with a system that won't overclock well because of either the memory and/or the BIOS settings...
I have 0433 and 0451 and both do 9X300, but it takes the memory that the board likes, coupled with BIOS settings that the board and memory both like....
The lone exception to the above analysis, is the MSI Neo4. There seems to be a issue with Winchesters on the board that also limits the overclock to around 220 HTT/FSB....
If you want to overclock, you must get the right memory! And by overclock, I don't mean running at 235-250FSB! My Shuttle AN35/N's can do that and still do! I'm talking about running at 300FSB and higher...
It's all in the memory!!!!!!!!!!!!
Here is a list of the top performing memory based on running at 200 1T 2.5-3-6-3 and the ability to run close to 9X300 and pass several runs of SuperPI tests...
1st A-Data Vitesta PC4800 DDR600 TCCD Chips (Typical 310 FSB Overclock) **
2nd G.skill (Samsung TCCD) Dual Channel Kit TCCD Chips (Typical 310 FSB Overclock)**
3ed OCZ EL Platinum Revision 2 Dual Channel Kit 184-Pin 1GB(512MBx2) DDR PC-3200 -Retail (Typical 300 FSB Overclock)
4th OCZ Dual Channel Platinum, 184-Pin 1GB(512MBx2) DDR PC-4800 -Retail (Typical 295 FSB Overclock)
5th Kingston HyperX KHX3200ULK2/512 TCCD Chips (Typical 290 FSB Overclock)
6th PQI TURBO Series Dual Channel Platinum 184-Pin 512MB(256MB x 2) DDR PC-3200 - TCCD Chips (Typical 270 FSB Overclock)***
7th Mushkin Black Level II 2-2-2-5 (BH-5 chips) (Typical 240 FSB Overclock)
8th GEIL Ultra Platinum PC4400 Hynix Chips (Typical 230 FSB Overclock)***
** Note the A-Data posted higher on more boards then the G.Skill did, therefore I made it the #1 choice...
*** Note that both the PQI memory and the GEIL mamory had problems POSTing at any FSB, on certain boards
This guide shows which IC's are used in todays best memory modules... Remember to spot modules utilizing Samsung 4ns TCCD, Winbond BH-5/6 or UTT as these are going to be the best overclocking IC's.
Note: BH-5 and BH-6 are no longer in production, you will need to verify before purchasing any new sticks listed here if they do indeed still have the Winbond IC's! I don't want someone going out and buying some listed memory at Newegg that says it has BH-5 IC's and get mad at me because it has something different.
Da List:
A-Data
PC2700 (cl2,5) could be Winbond AH-6 or BH-6
PC3200 Winbond CH-5, Samsung TCCC
PC3200 Special Edition Winbond BH-5
PC3700 (non Vitesta, no HS) should Samsung TCC5
PC4000 (3-4-4-8) Hynix D43, D5, Samsung TCCC
PC4000 Vitesta (3-4-4-8) Hynix D43, D5
PC4500 Vitesta Samsung TCCD
PC4800 Vitesta Hynix B
Apacer
PC2700 could be Winbond AH-6
Buffalo
PC3200 may or may not contain Micron 46V32M8 -5B C, 46V32M8 - 5B G look at the chips
PC3700 may or may not contain Winbond BH-5, Micron 46V32M8 -5B C look at the chips
FireStix PC4000 Hynix B
Corsair
XMS-PC2700C2 Rev1.1 (2-3-3-6-1T) maybe Winbond BH-6/Samsung TCB3
XMS-PC2700C2 Rev1.2 (2-3-3-6-1T) Winbond CH-6
XMS-PC2700C2 Rev1.3 (2-3-3-6-1T) Mosel Vitelic (6ns?)
XMS-PC2700C2 Rev2.1 (2-3-3-6-1T) Micron (6ns rev B)/Samsung TCB3
XMS-PC2700LL Rev1.1 (2-2-2-6-1T) Winbond BH-6
XMS-PC2700LL Rev1.2 (2-2-2-6-1T) Winbond CH-6
XMS-PC3000C2 Rev1.1 (2-3-3-6-1T) Samsung TCB3/Micron (6ns rev B) and few Winbond BH-6
XMS-PC3000C2 Rev2.1 (2-3-3-6-1T) should Winbond BH-6
XMS-PC3200C2 Rev1.0 (2-3-3-6-1T) Winbond CH-5
XMS-PC3200C2 Rev1.1/2.1 (2-3-3-6-1T) Winbond BH-6
XMS-PC3200C2 Rev1.2/2.2 (2-3-3-6-1T) Winbond CH-6
XMS-PC3200C2 Rev3.1 (2-3-3-6-1T) Infineon B-5
XMS-PC3200C2 Rev4.1 (2-3-3-6-1T) Samsung TCCD
XMS-PC3200C2 Rev4.2 (2-3-3-6-1T) Samsung TCCD & TCC5
XMS-PC3200LL Rev1.1/2.1 (2-2-2-6-1T) Winbond BH-5
XMS-PC3200LL Rev1.2/2.2 (2-3-2-6-1T) Winbond CH-5
XMS-PC3200LL Rev3.1 (2-3-2-6-1T) Infineon B-5
XMS-PC3200XL Rev1.1 (2-2-2-5-1T) Samsung TCCD
XMS-PC3500C2 Rev1.1 (2-3-3-7-1T) Winbond BH-5
XMS-PC3700 Rev1.1(3-4-4-8-1T) Samsung TCCC
XMS-PC4000 Rev1.1 (3-4-4-8-1T) Hynix D43
XMS-PC4400 Rev1.1 (3-4-4-8-1T) Hynix D5
Crucial
PC3200 may or may not contain Micron 46V32M8 -5B C, 46V32M8 -5B G
Ballistix PC3200 (2-2-2-8) Micron 46V32M8 -5B G (maybe overlabeled)
Ballistix PC4000 (2.5-4-4-8) Micron 46V32M8 -5B G (maybe overlabeled)
GeIL
Value PC3200 Blue (2.5-3-3-6) Infineon 5ns, Hynix D5, D43
Golden Dragon PC3200 (2-3-3-6-1T) WLCSP chip package w/ Samsung chips
Ultra Platinum PC3200 (2-3-3-6-1T) Winbond CH-5, Mosel Vitelic 5ns
Ultra X PC3200 (2-2-2-5-1T) Samsung TCCD (relabeled)
Golden Dragon PC3500 (2.5-3-3-6-1T) WLCSP chip package w/ Samsung chips
Ultra Platinum PC3500 (2.5-3-3-6-1T) Winbond CH-5, Mosel Vitelic 5ns
Golden Dragon PC3700 (2.5-4-4-7-1T) WLCSP chip package w/ Samsung chips
Golden Dragon PC4000 (2.5-4-4-7-1T) WLCSP chip package w/ Samsung chips
Ultra Platinum PC4000 (3-4-4-8-1T) Hynix D43
Ultra Platinum PC4200 (3-4-4-8-1T) Hynix D43
Ultra Platinum PC4400 (3-4-4-8-1T) Hynix D5
Kingston
HyperX PC2700 (2-2-2-5-1T) (KHX 2700) first Samsung TCB3, then Winbond BH-6, CH-6, CH-5, relabeled unknown Chips.
HyperX PC3000 (2-2-2-6-1T) (KHX 3000) first Samsung TCB3, then mainly Winbond BH-5, some BH-6, CH-5, CH-6 (maybe relabeled)
HyperX PC 3200 (old revision, not AK2, K2 or A) (KHX 3200) Winbond BH-5
HyperX PC 3200K2 (2-2-2-6-1T) (KHX 3200K2) Winbond BH-5
HyperX PC 3200AK2 (2-3-2-6-1T) (KHX 3200AK2) Winbond CH-5
HyperX PC 3200ULK2 (2-2-2-5-1T) (KHX 3200ULK2) Samsung TCCD
HyperX PC 3500 (rated 2-3-3-7 @ 433Mhz, 2-2-2-6 @ 400Mhz, old revision) (KHX 3500) Winbond BH-5 (maybe relabeled)
HyperX PC 3500K2 (2-3-3-7) (KHX 3500K2) Winbond CH-5
HyperX PC 4000K2 (3-4-4-8) (KHX 4000K2) Samsung TCCC, Hynix D43, D5
HyperX PC 4300K2 (3-4-4-8) (KHX 4300K2) Hynix D5
Kingston Ram w/remarked Chips as D328DW-45 Before Week 18 Year 03 Winbond BH-5, after CH-5 (18 03 can be both)
Kingston Ram w/remarked Chips as D328DW-5 Winbond BH-5
Kingston Ram w/remarked Chips as D328DW-6 Winbond BH-6
Kingston Ram w/remarked Chips as D328DM-6 should Winbond BH-6
Kingston Ram w/remarked Chips as D328DM-5 should Winbond BH-5
Value Ram 333Mhz (2,5-3-3-*) (KVR333X64C25) may or may not contain Winbond BH-6, AH-6, Hynix D43, D5 look at the chips (maybe relabeled)
Value Ram 400Mhz (2,5-3-3-*) (KVR400X64C25) may or may not contain Winbond BH-5, CH-5, Micron 46V32M8 -5B C, Hynix D43, D5, Samsung TCCC, TCC4 look at the chips (maybe relabeled)
Mushkin
PC2700 (Non Level X, rated 2-3-3, Promo-Build) Winbond CH-6
PC3200 Cl2,5 (Non Level X, non Blue, non Green Serie) Winbond BH-5, Samsung TCB3
PC3200 (Non Level X, rated 2-2-2, Promo-Build) Winbond BH-5
PC3200 Level I (2-3-2) Winbond CH-5
PC3200 Level II (2-2-2) Winbond BH-5 or BH-6
PC3200 Special 2-2-2 Winbond BH-6
PC3200 Level II V2 (2-2-2) Samsung TCCD
PC3500 Level I (2-3-3) Winbond CH-5
PC3500 Level II (2-2-2) Winbond BH-5
OCZ
EL DDR PC3200 Platinum Limited Edition (2-2-2-7) Winbond BH-6
EL DDR PC3200 Platinum Edition (2-3-2-5) Samsung TCB3, ProMOS 5ns (relabeled), Mosel Vitelic 5ns (relabeled), Winbond CH-5
EB DDR PC3200 Platinum Edition (2,5-3-2-8) Micron 46V32M8 -5B C
EL DDR PC3200 Platinum Edition rev2 (2-2-2-6) Samsung 4ns TCCD
EL DDR PC3500 Platinum Limited Edition (2-2-3-6) Winbond BH-5
EL DDR PC3500 Platinum Edition (2-3-2-5) Winbond CH-5, few BH-5
EB DDR PC3500 Platinum Edition (2,5-3-2-8) Micron 46V32M8 -5B C
EL DDR PC3700 Gold Edition rev1 (2-3-3-7) Samsung TCB3 (overlabeled)
EL DDR PC3700 Gold Edition rev2 (2,5-3-3-7) ProMOS 5ns (relabeled) , Mosel Vitelic 5ns (relabeled)
EB DDR PC3700 Platinum Edition (3-2-2-8/3-3-2-8) Micron 46V32M8 -5B C
DDR PC4000 (3-4-4-8) Hynix D5, D43 (relabeled)
DDR PC4200 (3-4-4-8) Hynix D5, D43
DDR PC4400 (3-4-4-8) Hynix D5
EL DDR PC4400 Gold Edition (2,5-4-4-8) Hynix B
Samsung
PC3200 Samsung TCC4, TCCC
PC3700 Samsung TCC5
PC4000 CL3 Samsung TCCD
Shikatronics
ShikaXram PC4400 (3-4-4-8) Hynix B
TwinMos
Twinmos DDR333 (2,5-3-3-6) Samsung TCB3, TCC4 Winbond AH-6, Winbond BH-6, Twinmos, Hynix, Mtec
Twinmos/Winbond DDR400 (2,5-3-3-6) Could be Winbond BH-5, CH-5, look at the chips
Twinmos Twisters DDR500 (TSOP) (3-4-4-8) Hynix D43, Samsung TCCC
Twinmos Twisters DDR533 (3-4-4-8) Hynix D5
Ultra
Extreme Memory PC3200 DDR 400MHZ (2-2-2-5-1T) Winbond BH-5, selected CH-5
SCSI posted 1.88 minutes later:
8) indicates 8
SCSI posted 2.4 minutes later:
/////ALL COPY & PASTE FROM THE REBELS HAVEN COMPUTER FORUM & CREDIT GOES TO "POLYGON" an elite user of that forum//////
It's all in the memory!!!!!!!!!!!!
Aside from the "Can't Get Over "219" Bug", every nF3/nF4 board can overclock to 300+ FSB....
1. 130nm CPU's stop around 2.5Gig, except the FX-55
2. Winchester CPU's stop around 2.65Gig....
3. Venice/San Diego CPU's stop around 2.85Gig
But this is only with the correct memory!
Forget Value RAM. Forget BH-5 and Hynix RAM! TCCD is the only RAM that your can run to 300+FSB at "normal" Vdimm's, but not every brand works!
I bought 6 of the most popular S939 Motherboards, so that I could document their quirks and determine what it takes to get them going, and get them overclocking to respectable levels...
It didn't take long before I realized how fussy the new boards are with brand/model of memory... So I bought around 6 different brands of high performance memory... I tested all the memory on all the different boards to determine which memory brand and model each board likes... The results of those tests are here and here....
A major stumbling block many overclockers of these new boards are running into, are the BIOS settings that the boards will work with, and work well... The new nF3 and nF4 boards have probably double the BIOS settings of previous nF2 boards. And not only are they sensitive to the correct combination of settings, there are settings that just do not work at present and need a BIOS update.... Many users are trying odd combinations of BIOS settings that will just never work well at all, and because they have gotten to 220 FSB, they think they are on the right track... WRONG!
To help this problem I took BIOS screen shots of the critical BIOS windows showing the settings that I used to overclock every board to 9X300FSB, or 2.7Gig. These worked on both FX-55 and Winchester CPU's... Admittedly, the Winchester wasn't 100% stable on all boards at these settings, but they POST and boot at the settings... The BIOS screen shots are "sticky" topics in each A64 motherboard sector...
The toughest idea for new A64 board owners to accept is that the memory they have used at great settings on 32 bit boards, doesn't work worth a damn on their new board... Forget "Value RAM" if you expect to clock to 300FSB... Forget memory with Hynix Chips that are typically used in PC4000 to PC4500... Only a very few members have gotten the new boards to clock to 300FSB with Hynix Chip memory... Forget Mushkin memory with BH-5 chips unless your prepared to run 3.6Vdimm!.... The nF3/nF4 boards only like "TCCD" memory, but not every brand... I must emphasise that all brands of "TCCD" memory are not equal and that all brands of "TCCD" memory will not overclock well. I have 1 brand of TCCD memory that will not even run at 200FSB on a particular nF4 board!
Another quirk of these boards that is tough to accept, is that what works for one board user, may not work for another board user, with the exact same components... Right now I only know of two brands/models of memory that that happens with... But they are both with the same board...!
A good place to start are the 64 bit topics in the OverClocking Tips, Techniques and Theory sector... In particular the ones that explain what the new BIOS setting are and do. Look here , here , to list just a few...
Right now on a very small sample, the stepping appears to me to make little or no difference....
I have read litterly hundreds of threads at the big Overclocking Forums complaining about various steppings and date codes, and was starting to accumulate some data on the Winchester series...
Then I ran into a thread where the issue was with the exact same CPU I am using at 9X300, on several of my nF3 and nF4 boards...!
Then I realized that the problems are not with the CPU, but with a system that won't overclock well because of either the memory and/or the BIOS settings...
I have 0433 and 0451 and both do 9X300, but it takes the memory that the board likes, coupled with BIOS settings that the board and memory both like....
The lone exception to the above analysis, is the MSI Neo4. There seems to be a issue with Winchesters on the board that also limits the overclock to around 220 HTT/FSB....
If you want to overclock, you must get the right memory! And by overclock, I don't mean running at 235-250FSB! My Shuttle AN35/N's can do that and still do! I'm talking about running at 300FSB and higher...
It's all in the memory!!!!!!!!!!!!
Here is a list of the top performing memory based on running at 200 1T 2.5-3-6-3 and the ability to run close to 9X300 and pass several runs of SuperPI tests...
1st A-Data Vitesta PC4800 DDR600 TCCD Chips (Typical 310 FSB Overclock) **
2nd G.skill (Samsung TCCD) Dual Channel Kit TCCD Chips (Typical 310 FSB Overclock)**
3ed OCZ EL Platinum Revision 2 Dual Channel Kit 184-Pin 1GB(512MBx2) DDR PC-3200 -Retail (Typical 300 FSB Overclock)
4th OCZ Dual Channel Platinum, 184-Pin 1GB(512MBx2) DDR PC-4800 -Retail (Typical 295 FSB Overclock)
5th Kingston HyperX KHX3200ULK2/512 TCCD Chips (Typical 290 FSB Overclock)
6th PQI TURBO Series Dual Channel Platinum 184-Pin 512MB(256MB x 2) DDR PC-3200 - TCCD Chips (Typical 270 FSB Overclock)***
7th Mushkin Black Level II 2-2-2-5 (BH-5 chips) (Typical 240 FSB Overclock)
8th GEIL Ultra Platinum PC4400 Hynix Chips (Typical 230 FSB Overclock)***
** Note the A-Data posted higher on more boards then the G.Skill did, therefore I made it the #1 choice...
*** Note that both the PQI memory and the GEIL mamory had problems POSTing at any FSB, on certain boards
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