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How to OC 7900GS?

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February 13, 2007 7:55:06 PM

What software should I use and what settings should I go to with stock fans on GPU, EVGA, 7900GS 256 PCI expressx16...

Thanks!

More about : 7900gs

February 13, 2007 8:24:52 PM

download coolbits 2.0 from guru3d.com, run it. Go to nv control panel, accept overclocking. Increase gpu 3D clocks by 5Mhz steps and push the test button till it fails, and do the same with the memory.

Then, download ATITool (not ati tray tools) and search for artifacts. if have any artifact start decreasing GPU clocks by 5Mhz and test again. Most artifacts are from the gpu, although coolbits allows you to increase its freq even if artifacting. Artifacts may have to do with gpu and memory, but you have to test what is failing. Run at least each test for 8 min.

Keep an eye on the temps.
February 14, 2007 12:54:08 AM

Quote:
Then, download ATITool (not ati tray tools) and search for artifacts


Doesn't coolbits do this when testing the overclock?

Anyway, you can either raise the core and mem on your own or you can use the "Detect Optimal Frequencies" button, which will fint he highest overclock possible without error. I used coolbits on the 6800 in my sig with good results.

I think nTune is another good program.
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February 14, 2007 1:24:18 AM

I ran coolbits reg hack but nothing has changed - maybe because I re-installed (updated) nvidia driver - will try again.

In the meantime I did use ATI tool fine, havent yet tested what are max settings but did go from 450/660 to 500/690 - and my 3D Mark 2006 score stayed the same - 4774!? What gives?

Thansk!
February 14, 2007 8:33:12 AM

Quote:

Doesn't coolbits do this when testing the overclock?

No.
February 14, 2007 8:35:37 AM

Every time you install new drivers, u have to run coolbits again and overclock it again.
My 7900gs ( see sig) scores almost 10600 in 06
February 14, 2007 9:14:43 AM

try nvtune, go easy, increase only 5Mhz at a time
if you wanne go serious, get yourself an aftermarket cooler
February 14, 2007 1:00:37 PM

ATI Tools does it slow - so far at 575 / 760 and 3D Mark 2006 is 5400.
This is not as high as it will go, just as high as I took it so far - like you said, taking it easy...

Thanks!
February 15, 2007 12:43:34 AM

PMR how do you get 10.5 K on 3D Mark 06?! with same card?
What freq. is your E6600 and your 7800GS?!

With ATI tools I went as hight as 650 core (450 default) adn 860 memory (660 default) - but system was not satable - adn wierdest (to me) is that 3D Mark scores dropped!?!

Runing now at 575/800 and scre is only 5400 - seems best I can do with stock fan on EVGA 7900GS? My E4300 @3.0 Ghz...

P.S. I wasn't spamming, I thought thsi might be better board to post the question and I'm not that new to OC-ing - been doing it for 10 years (which means I oc-ed 3 times so far lol, everything is relevant).

P.S. We're gona beat you when you come play in Belgrade for Euro qualifications next month!
February 15, 2007 10:58:42 AM

sorry, 10600 in 05 and 5700 in 06. my E6600 is at 2.7ghz

Don't OC with ati tool. Oc with coolbits, just check for artifacts with ati tool


Calm down with the football, we have a lot of new comers and they are doing just fine to defeat any country. Brasil just took 2 last week :wink:
February 15, 2007 5:04:53 PM

Thanks.

ATI Tool is going up and up in speed, saying it's safe (max) speed but artifact keeps getting digitized... Also 3d Mark score was lower at those high speeds (650/860 from 450/660), Coolbits was suggesting way to low settings (forgot what) - I manually picked for now 600/860 and seems that everything is fine - temp is 48C to 60 after playing for a while, with my E4300 @3Ghz got 5400 on 3D mark 2006...

Thinking of keeping it like this, but might play some more with coolbits to learn...
February 15, 2007 6:11:17 PM

remember that most of the artifacts are due to the high GPU freq. and not from VRAM. GPU artifacts are likes glitches and white dots, and VRAM artifacting shows distorted polygons and triangles.
Usually coolbits allows you to increase GPU freq. even when it's artifacting. If you hear the "bump" in ATITool, just decrease GPU freq. by 5mhz steps (in coolbits) and retry (in ATITool) till it's ok. It's pretty easy.
February 19, 2007 12:43:41 PM

Quote:
Every time you install new drivers, u have to run coolbits again and overclock it again.
My 7900gs ( see sig) scores almost 10600 in 06


are you sure, i didn't think SLI 8800CTX got that high
February 19, 2007 2:54:07 PM

Quote:
Every time you install new drivers, u have to run coolbits again and overclock it again.
My 7900gs ( see sig) scores almost 10600 in 06


are you sure, i didn't think SLI 8800CTX got that high

Read all the posts before replying 8)
!