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PCI-E clock

post #1 of 13
Thread Starter 
how far can I go with it?
mine works on 115 stable
how does it help?
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post #2 of 13
Nope, it does nothing but decrease stability and increase data corruption.

Your 7600GS is probably using the bandwidth of 2x PCIe at most.
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post #3 of 13
I wouldn't go over 100Mhz. I've found no performance boost on raising it higher. All I found was instability.
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post #4 of 13
Quote:
Originally Posted by DuckieHo View Post
Nope, it does nothing but decrease stability and increase data corruption.

Your 7600GS is probably using the bandwidth of 2x PCIe at most.
Proof? I've found the opposite to a point (119MHz)
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post #5 of 13
Well if you go too much you can fry the PCE-e slot (ive done it). I would say 110-115 is okay but I really would not push it too far.
post #6 of 13
Increasing the PCIe clock speed will not improve your graphics cards performance in any way. I've tested it from 80 to 120. Nothing, maybe a point or two in 3Dmark06 but definitely not worth frying the card or losing your data
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post #7 of 13
Then how do you explain my inability to reach past 760 with 100MHz PCIe and my sudden ability to reach 773 with 119(that I've been running for about 9 months now without issue)? The only thing you have to worry about is if you've got an an board that also OCs the sata frequency with the PCIe (most are locked at 100 now-a-days)
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post #8 of 13
Quote:
Originally Posted by Ihatethedukes View Post
Proof? I've found the opposite to a point (119MHz)
I don't know what is up with your board... but check virtually every other board out. Turn the PCIe over 110MHz and they will experience issues. nVidia even removed their HyperLink feature on the 680i (overclocking PCIe to 125MHz)
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post #9 of 13
There I kind of agree. I've used 115 or higher on every board that I've owned with no ill effect EXCEPT one. My MSI SLi-platinum. The HDDs would click a few times and 'die' rebooting the computer. When I backed the PCIe to 104 it was fine but I lost my vid card OC by about 10 MHz core. No biggie there, but if I can TAKE the extra 10MHz without problems I will.

List of boards I know do 115-120MHz without issue:

DFI P965-S
DFI 975X/G
DFI SLI-DR
DFI Lanparty 590SLI
Seeing the pattern yet?
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post #10 of 13
I think it depends on the individual MOBO. I have done it and get no performance boost or added stability, neither do I loose stability or have any issues by increasing it. Some have reported extra stability for their video card OC from doing it, though.
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