Overclocking Phenom X3 ! instructions needed

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Yep. First check out what the default speed of the NB was.

Flickering appears to be due to a toasty igp which is running off the northbridge.

I guess the HT link is the same as the NB in the 790GX.

Down the NB multiplier to 4x. Do not decrease the FSB speed while doing this.
 
tearing? graphics problem? did you lock the PCI express bus frequency @ 100?
 
I don't have an external vga :( WIll try to get it maybe 3450 :P .. yea the Jetway Hummer 790 GX NB runs hot..

Now I only changed CPU voltage at next boot.. I have touched Nb Core V and Nb PCI V . SHould I changed it too ? Which everest screen you want ?

@ Sudarshan : There were no problem with Linux.. I don't get BSOD and flicker in it !
 
..:: Free Radical ::.. said:
Yep. First check out what the default speed of the NB was.
Flickering appears to be due to a toasty igp which is running off the northbridge.

I guess the HT link is the same as the NB in the 790GX.
Down the NB multiplier to 4x. Do not decrease the FSB speed while doing this.
Click to expand...

I didn't changed NB thing.. CPU Z shows its near 1935 Mhz ? :(

SunnyBoi said:
tearing? graphics problem? did you lock the PCI express bus frequency @ 100?
Click to expand...

Donno I locked or unlocked it.. but AMD Overdrive showing it 100.. So should I change it ?

Amol said:
^ dont push your system to the limits, is my advice, wont serve you for a long time.
Click to expand...

I won't be pushing it too much .. All I want to hit 3ghz :) and do some benhcmarking...

Also should i invets in external vga ? Which one ? Is this flickering due to Hot IGP ? NB ?
 
Dark Star said:
I don't have an external vga :( WIll try to get it maybe 3450 :P .. yea the Jetway Hummer 790 GX NB runs hot..

Now I only changed CPU voltage at next boot.. I have touched Nb Core V and Nb PCI V . SHould I changed it too ? Which everest screen you want ?

@ Sudarshan : There were no problem with Linux.. I don't get BSOD and flicker in it !
Click to expand...

Hey DS. Do not change the NP Core/PCI V. As suggested above lock the PCI Express frequency to 100Mhz and PCI Clock Sync to 33.33 manually.

For the time being, return to bios defaults and se if you still get flickering. I hope your monitor refresh rate in Windows is 60 Hz and not 59.9 or something.
 
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You will need an add-in card.

I may be referring to an old case - but I could never get my Jetway onboard graphics to run stable at high loads. I was running stock speed but at an insane resolution (2560x1600), and the screen would keep flickering and blanking out. This was a 690G board, looks like they haven't got their act together, two generations on.

No other 690G or 780G board ever gave me this problem, the Dual-Link resolutions working perfectly.

As for your settings: HT3.0 runs the link at 1600MHz, so your HTT x HTTmult should result in a lower speed. If the link speed is 200MHz, the link mult should be at 8x max. The CPU then will operate at 200xCPU mult. You need to read up a bit on the Phenom arch to get a hang of what's going on under the hood. Without seeing the BIOS and fiddling with it myself, there's no way I can help.

Back off everything to stock and try again.

What I normally do first is find the limit of the memory. On the Phenom this is pretty simple if your BIOS allows it, drop the CPU mult and increase the memory speed till you begin to lose stability. You may need to relax the timings and increase the voltage. Use a graph paper and plot the increase in speed (benchmarking) for every change you make. The point where the curve starts to flatten out is where you should stop.

Then we back the memory off to stock and run sync with the CPU (restoring its mult to stock) till we hit the memory limit we found earlier. Once that is reached, we back off the memory speed and increase CPU mult/HTT till we reach the CPU limit (as outlined earlier, with a graph paper).

Be aware that you may not be able to hit 3GHz at all. Your PSU does not look particularly the best for an overclocking venture, and may indeed be the reason you are unable to clock higher, but it could also be your board or the memory.
 
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Ok heres an update.. I set the Ram freq to 400 mgz gave them more tighter timings 4-4-4 .. Now the same problem.. Whenever I bump up FSB=HTT above 115 I got those tearing and flickering :@ I have monitor with refresh rate 60hz .. Now I think the only problem is IGP .. Cause everything else going fine..



I can even crank X3 above 2.8 but that IGP gets hot :@ and flickering happens...

From where I can change the HT Multiplier ? Is it the same as CPU Multiplier ? The HTT Link speed in BIOS shows only speed not multiplie.. If I set it to 800mhz overdrive shows multiplier as 5 ?

One question . My Mb shows CPU ration at next boot option.. According to it I can change the CPU FSB and Multipler [preconfigured] so if I select 200X7 and then bump my FSB , the multiplier will be 7 or 11.5 ?

I have a non Black Edition processor then how can I change my multiplier , I can even change it from Overdrive :S

So which graphics card should I get ?
 
If you have an extra fan, place it directly over the NB over the igp fins. It must be getting hot.

The best solution it seems is to get an addon graphic card and disable the IGP in the bios. Ironical though, the 790GX has been marketed to have a good IGP to support hybrid crossfire. Looks like its Jetways implementation that is at fault. If the NB gets overly hot at stock without overclocking, you should rma it and get a better board.
 
^^Hmm. will I be able to ask them to send me HA07 Ultra [with heatpipe] in lieu of HA07 :P .. I know i am being greedy :P

Don't know where to contact Jetway guys !
 
Multi-locked CPUs can be adjusted only downward, which is what you need to do to test the memory limits.

You have to loosen RAM timing a bit if you're getting instability. I would recommend 6-6-6 to find the limit, and 5-6-5 for sustained operation. You will have to do a couple of bench runs to find which gives you better bandwidth - loose timings with higher speed or tight timings with lower speed.

The HTT is a reference clock, and the Link and the CPU use this clock to set their speeds. Both use a multiplier. The CPU mult is easy to find, it's usually a exposed setting. If you can't find a separate control for the HT link mult, it is probably disguised as the "HTT Link Speed" or something similar. In this case you will have two speed setting: a "FSB" setting that should go from about 150 to about 400MHz (this range depends on the mobo), and another "HT Link" setting that goes from about 600 to about 2000MHz. The first setting is the reference clock, and the second is the multiplier for the reference link, back-calculated at a HTT speed of 200MHz.

So.

If you set the "FSB" to 250MHz, the CPU will operate at 250x11.5, and the HT Link will operate at 250x8. If you drop the CPU mult to 7 and the HT Link to 600MHz, the CPU will operate at 250x7 and the HT Link will operate at 250x3.

Essentially, the HT link multi = Link Speed/200. It's a horrible adjustment from our days of FSB.

Link of 600 = mult of 3

Link of 800 = mult of 4

.....

Link of 1600 - mult of 8

Link of 2000=mult of 10

You probably need a new board and a graphics card. I swore off Jetways a long time ago. For reference, I'm using a Asus M3A78-EM, which allows me to hit 3GHz on my 9950BE with only a .05 voltage increase and zero rise in temperatures, with a very minor boost of .1mV on the NB I'm touching a graphics core speed of 600MHz(stock=400, that's a 50% overclock). This is a 24x7 stable config, only backed off the CPU overclock for power consumption reasons. A VX450 ensures I have never encountered a power problem, overclocked or stable.
 
^^Very nicely explained cleared all the doubts :)

So HTT Speed is independent of CPU multiplier. They have pre-configureed multiplier [in my case].. So if I set the speed to 600 multi for HTT is 3 and other as stated ;)

Thanks for explaining so clearly :) Will see if I can hit more after changing the graphics card !

Anyone knows whos the retailer of Jetway in India ? How can I contact them.. Their site seems useless :@
 
Your settings are:

1. CPU clock at next boot. This is the reference clock. In my example above I have used 250. I can't see that the poster has expanded this setting, but it should be a box into which you can key in a number, at least that's how it was with my Jetway.

2. HT Link speed. Divide by 200 to arrive at the multiplier, and multiply by the number above. Keep this within 1600MHz.

3. The 'CPU ratio at next boot' is the CPU mult setting (I think).

4. I can't see a setting to change memory speed, but I haven't looked at all screens.
 
1. Yea I can bump up from there [ FSB] but after raising it above 215 I get those problem :@

2. Did the same !

3. Its the combination of pre-configured FSB and multiplier :)

4. Theres an option at the lower part of the scree ! Also he has been able to clock @ 3.7 Ghz ::P But he haven't changed FSB only played with multiplier :(

Edit : Any idea how can I contact Jetway guys ?
 
Changing the Graphics card did fix the problem.. Thanks to Amarbir he sent he a graphics card [9500 GT] for testing :)

Currently doin 2.7 testing .. Just one question apart from AMD overdrive stability test what else should I opt for :)

Fux off ... CPU-Z isn't accepting entries from 1.49 and 1.50 showing wrong CPu :@ anyways here its is CPU-Z Validator 3.0
 
Woot :D Did 2.9 + :) Will push more.. I think I am getting it :) Thanks sangram, free_radical :) and amarbir :)



Will try pushing more.. Now going to do stability tests :)

Validation :@ CPU-Z Validator 3.0 :@

Edit : Opened the case do some more OC .. Noticed that SCCF isn;'t getting hot after powering off the system.. Just touched it , its normal not hot at all !

Did all the test its all stable @ 2.93 :) Will try hitting 3ghz tomorrow ;_)
 
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