P5K E6600 modest overclock + 7900GS

[kinnsy]

First off, hello all first post.

After reading the guide for C2D beginners I tried a modest overclock of 200MHz on my Asus P5K with an E6600 C2D. All appears to be working aok but somehow the core of my 7900GS has also gone up from 525MHz to 540MHz. The video card is a BFG 7900GS OC which is already overclocked as standard at 525MHz core, 1320MHz mem.

I never noticed this behaviour on my AMD rigs. The 7900GS was in an asus A8N32-SLI Deluxe with an AMD64 4000+ clocked to 2.8GHz up until a couple of months ago. I also have an Opteron 165 clocked to 2.4GHz happily chugging away 24/7 doing folding@home for the last 8 months with no problems so I'm not totally clueless.

Well maybe just a bit when it comes to clocking current Intel CPU's. The last Intel cpu I clocked was my old 386-25MHz to 32MHz.

Anybody got any pointers as to where this 15MHz GPU core overclock is coming from and how to get it back down to the stock 525?

cheers.

[Clunk]

Welcome to the forums

To be honest, I've never seen this before and I'm not sure why it would happen.

There have been some oddities with P35 boards and the PCI-E bus, but it shouldn't lead to an overclocked GPU.

I suspect that this is software related, maybe something like rivatuner (or whatever you may have installed) has become corrupted?

Make sure the PCI-E frequency in the BIOS is set to 100. This wouldn't really cause the problem that you have, but it could possibly cause other problems.

Other than that, I would be guessing

[kinnsy]

Cheers for the reply. That is what I found odd too as I don't see why it should have any effect on it. I only noticed it because the GPU temp reading in speedfan went up by about 3c. TBH this was only an initial trial as the cpu is running on the stock intel cooler atm and from some reading of the forum this is a less than ideal situation.