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7900GT Overclock ?

post #1 of 28
Thread Starter 
Was just wondering what the opinions were on overclocking a gigabyte 7900gt. I put the memory to 1400 and the core to 500 , up from 1320 and 450.

Thanks..


Also my Cedar Mill 3ghz. Wondering how much i can o/c that to.
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post #2 of 28
Both the 7900gt and that Pentium are good overclockers. Look up how to do a volt mod on that 7900gt. With a volt mod those things can achieve insane overclocks. I have seen many of them at 700 core 1800 mem.
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post #3 of 28
Thread Starter 
it sluts out if i put the card any higher. The screen will just go all messed after a while up and i have to restart.
So yea i dunno.
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post #4 of 28
Interesting. I was thinking of ebaying my current 7800 GTX and getting a 7900 GT provided it didn't up costing me anything but it doesn't look like it's worth the hassel for a few extra MHz on the memory.
post #5 of 28
you should look into the volt mod, but i dont reccomend doing it, unless your experienced with that sort of thing..but your cedermill and your card are great overclockers...im surprised your not getting better oc's then that!!
    
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post #6 of 28
I got a gigabyte. I never tried overclocking with stock but when I slapped a zalman on it I got 585/1800 (with coolbits) artifact free. I did 1.55 vmod and Im doing 700/1800 right now artifact free as well .

EDIT: You're going to want to look into some aftermarket cooling. I'd go for the Zalman VF900+AS5.
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post #7 of 28
Quote:
Originally Posted by Towlie
it sluts out if i put the card any higher. The screen will just go all messed after a while up and i have to restart.
So yea i dunno.
Your gpu is undervolted to keep it from being able to clock as high as the gtx. If you're willing to do some fairly easy modifications,it can go much higher. If you do volt mod, make absolutely sure to watch temps for a few runs.
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post #8 of 28
Thread Starter 
If i could just put it upto 1.3 instead of the crazy like 1.55 then it would be ok.

Could i just put teh memory up and leave the core at 500 without it going funny ?
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Maximus
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post #9 of 28
You can always do that 1.4 vmod which I had originally done at first. Heating wasnt an issue, however it was still done with a zalman on it. Usually when you're doing any kind of overclocking whether with a vmod or not you should still look into some aftermarket cooling. It will help you get those higher clocks and better stability.

By the way with 1.4 vmod I got 685/1600 stable. So 1.55 I only bumped me a 15mhz increase. You can still go with the 1.4 mod if you're worried about 1.55. 1.4 ran soooo much more cooler than the 1.55 and still gave me very good speeds.
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post #10 of 28
Thread Starter 
would it doo much if i put a some as5 on the gfx card instead of that dirty white stuff they use, cause i bought a tube.
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Maximus
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