Post your overclocks !

Ok........ I tried out what you guys said and I got 6.3GBps B/W.

here are the two links -----

http://img106.echo.cx/img106/5796/benchmark15cl.jpg

http://img106.echo.cx/img106/2910/memorybest9fk.jpg

Which is better for an overall faster computer??? Higher clock speed or slightly higher bandwidth??

Note that in the second link(slightly lower scores) the RAM timings are tighter and the memory efficiency is at 91%. But the one with highest scores( my personal best), the efficiency is 84%. So, which setting should I keep for an overall faster and quiocker responding computer????

And thanks for all the help guys!!!! I really owe you all big time.

OOPs..... sorry.... I have not shown the memory efficiency. Well... I ran the test again and this time, the scores are slightly lower as I had not closed all the applications.... Anyway, here is the screenshot
http://img188.echo.cx/img188/4025/memorybest12dk.jpg
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Vdimm has been set to 2.7V. More than that and the computer does not boot up. If it does, I get aBSOD.

@masky .... will try what you suggested.

Thanks again.
 
TheMask said:
Hey Nikhil, why dont u give 300x8.5 a try n set ur RAM to 3-4-4-8.. I am sure u'll get close to 7GB/s..
Click to expand...
Hmmm.....had read smewhr tht using half multies is a bad idea.......
can sme1 explain...or am i wrong?? ;)
 
well many times half multiplier did not work on early mobos. It still dosent work on some motherboards. Basically is you use half multiplier mobo just uses the lower value multiplier.
Thats why it was suggested that not to use half multiplier.
I have tried it on my A8N and the benchmarks are little weird. It gives totally weird results with half multiplier.
 
Half multipliers work for the CPU but the RAM divider settings get screwed up. So if ur running 8.5*300 in 1:1 with RAM, the RAM will actually be running at 318 MHz( ( 8.5 * 300 ) / 8 ) instead of 300 MHz.
 
k here's why:

The memory divider is another thing which requires study. In the BIOS there are options for 200, 166, 150, 133, and 100MHz memory buses when HTT is 200MHz. These function normally, but a second divider gets introduced when the CPU is using a half-multiplier, like 7.5x. Since the memory controller is onboard the CPU, memory speed is based directly off of the CPU speed. When using a half multiplier, the RAM will behave as if the multiplier is actually the one half a step higher. The math for determining the memory speed becomes somewhat complicated. In all honesty the best course of action is to use ClockGen or CPU-Z to find the memory frequency, they have the detection method built in. Looking at the memory tab in CPU-Z which shows the divider being used is especially helpful in understanding.
Click to expand...
 
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Chaos said:
Half multipliers work for the CPU but the RAM divider settings get screwed up. So if ur running 8.5*300 in 1:1 with RAM, the RAM will actually be running at 318 MHz( ( 8.5 * 300 ) / 8 ) instead of 300 MHz.
Click to expand...

Pardon me, but that is clearly incorrect !
The Memory Frequency cannot be greater than the HTT Frequency !

The correct answer is Mem Freq = 300 MHz (if you believe CPU-Z) or 283 MHz (if you go with Everest Beta Edition).

There is a logical argument to go with Everest !

Here's the formula for calculating the Mem Freq:

Mem Freq = Multiplier X HTT / RoundUp( Multiplier X 200 / DDRDivider)

In the above case, Everest does:

Mem Freq = 8.5 x 300 / RoundUp( 8.5 x 200 / 200 )
= 8.5 x 300 / 9
= 283.33 MHz

Prolly will be a good exercise to verify this :cool2:
 
here's mine :



will be runnin 24x7 on that settings..unlike most of u ppls...hehehehehe....

EDIT : 750 posts :yahoo:
 
@nikhilb: As per the Athlon64s , higher clock speed shows much better performance than memory bandwidth. Memory bandwidth adds that little extra punch to the system too, but between the two CPU speed is a better bet.
 
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