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Who Is Overclocking PCIE Frequency? - Page 3

post #21 of 45
Quote:
Originally Posted by Phaedrus2129;12004908 
It won't kill your CPU, and I don't know about the motherboard. But your SATA controller, and thus your hard drive circuitry, are tied to PCIe. Thus overclocking PCIe will overclock your hard drives' PCBs... something for which they were never intended. The result is data corruption and/or hard drive bricking.

if this is the only danger then saying its really bad to be at 110mhz is really subjective. depends whether you care about your OS or not.

I for one never use an OS more than about a month, so to ME, even 120 would be perfectly fine. for others any overclocking may not be good.
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post #22 of 45
Quote:
Originally Posted by Phaedrus2129;12004908 
It won't kill your CPU, and I don't know about the motherboard. But your SATA controller, and thus your hard drive circuitry, are tied to PCIe. Thus overclocking PCIe will overclock your hard drives' PCBs... something for which they were never intended. The result is data corruption and/or hard drive bricking.

Are you sure? A data signal should not drive the circuitry to the point of damage.

The data corrupt is due to bit errors due to the instability at such a high clock.


BTW, NVIDIA auto-overclocked PCIe to 125MHz on their chipsets. However, this feature was later removed.
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post #23 of 45
3 sandforce drives on ich10r with pci at 120mhz 880mb/s cool.gif

People claiming 150 etc are full of rubbish.
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post #24 of 45
Only time I ever had to mess with it was when I was going for 4.7ghz+ which it seemed to help. Other than that I have it at 100 or 101...
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post #25 of 45
I OCed my AGP bus from 66MHz to 83MHz made no diff. PCIe is different though and there's no performance benefit so why do it? And it can cause serious problems so I woudn't touch it.
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post #26 of 45
What are you guys talking about a minor 10 mhz increase in your PCIe frequency gives you a small boost to your motherboards ability to retrieve information, and subsequently your graphics(Don't really know about other appliances). I have noticed a 5-8 fps increase in BC2/Metro 2033. No there is no problem in doing this. A 10% overclock never hurt anyone.
Edited by Razultull - 1/13/11 at 11:04pm
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post #27 of 45
Quote:
Originally Posted by wumpus;12004925 
if this is the only danger then saying its really bad to be at 110mhz is really subjective. depends whether you care about your OS or not.

I for one never use an OS more than about a month, so to ME, even 120 would be perfectly fine. for others any overclocking may not be good.

We're talking corruption within days. Not months. And potential hard drive damage.
Quote:
Are you sure? A data signal should not drive the circuitry to the point of damage.

I've seen cases of it happening, during my stay on TSF, and I believe once on here. I'm not sure why it happens, perhaps the ICs can't take it or something? It isn't physically damaged, they're just bricked. PCB replacement will fix them, but data is always corrupted.
post #28 of 45
Quote:
Originally Posted by Razultull;12004988 
What are you guys talking about a minor 10 mhz increase in your PCIe frequency gives you a small boost to your graphics(Don't really know about other appliances). I have noticed a 5-8 fps increase in BC2/Metro 2033. No there is no problem in doing this. A 10% overclock never hurt anyone.

http://instantrimshot.com/
post #29 of 45
Um... I oc'ed mind to 100mhz.. because I need to get my system stable for 4ghz cpu oc.. many ppl who overclock their rig also bump the pci-e frequency to 100mhz too... so in this means am I risking of damaging my motherboard??
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post #30 of 45
I have heard horror stories (and seen pictures) of parts of people's motherboards melted from mild pcie overclocks. It's a really bad idea.
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