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If I adjust PCI-E Freq...

post #1 of 9
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I've used Rivatuner 2.01 to OC my card already & now I want to adjust the PCI-E Frequency in the BIOS. I've just got a few questions. I have everything pretty much on Auto, should I adjust anything else as well? Once I do adjust the frequency, will Rivatuner show me my new core & mem clock speeds? If not how do I check them?
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post #2 of 9
Dont adjust the pcie frequency over 100mhz. You will not gain any performance. Just oc the card with riva tuner.
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post #3 of 9
The PCI-e frequency is like the vCore for a CPU, it just helps with stability. Also, increasing you frequency over 106-108 is VERY bad for your card.
post #4 of 9
Id say max 104...MAX 105.
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post #5 of 9
I have the p5bdlx and have had my PCI-e set to 114mhz since I got it. No ill affects or issues, and I gained another 15mhz from my gpu clock speed. Even before I got this mobo, I ran my 7900gt at 112mhz on my other mobo.

So- no, I would say, it will not do any crazy damage, or decrease the life of your card beyind what any normal OC'ing will do. My 7900 has run at 650-680mhz core at 1.4v and 114mhz PCI-e for a year straight now. This rig is on 24/7 for folding use and only gets one restart a week. If that doesnt vouch for it, I dont know what else to say.
*114mhz also gave me my highest ever 3dMark06' score of 6910...not too bad eh? Give it a try, use something like AM3 for testing. If you do set the pci-e too high, your screen will go black...just reboot. nbd.
post #6 of 9
Adjusting any of those speeds (AGP, PCI-E, PCI) and what not will not have an effect on anything and run a risk of damaging your motherboard and card. I highly recommend NOT doing it.

Now, if by PCI-E speeds you mean the x1, x2, x4 and so forth, then that has an effect on performance. But the mhz should be kept the same.
    
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post #7 of 9
set things to manual.. Auto sucks lol.. And nVidia cards perform best at 100MHz
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post #8 of 9
I run my pcie at 116mhz i have to on this motherboard to run 4.40ghz with my memory at 868mhz otherwise i dont post.
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post #9 of 9
That's interesting because the nVidia GPU Ex thingy automatically overclocks the PCIe to 110MHz so I seriously doubt it would be bad.
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