Overclocking with Coolbits and ATI Tool

[cpacini]

Im trying to max out my 7900GT. Ive got my memory up to 1900mhz, but I'm a little bit confused on the core. If i set it to 640mhz in coolbits and click on "Test Changes" it will pass all day long. but when I try to run the artifact check in ATI Tool I start getting artifacts at about 615mhz. The odd thing is I have been playing around with it today at 640 and I dont see any noticeable artiffacts in HL2: ep1, COD2, or 3dmarks. Is ATI Tool just overly sensitive or is coolbits not working the card hard enough when testing the settings?

 

[Ackmed]

Does ATi Tool with with NV cards... ?

 

[cpacini]

I thought the same thing, but it seems to work just fine

 

[Ackmed]

I never tried it with my GTX's. Reading their forums, it seems it works with the 7xxx series. Yet a lot of people are having problems.

I guess the best thing to do is, try a game and see if it artifacts there. If not, then obviously it will be ok. It will probably be easier to just pick one or the other, and go with that.

 

[RyanVM]

I personally just go with the worst-case scenario and go with what ATITool says.

 

[LittleNemoNES]

bench using 3dmark06

I would play COD2 max settings for about an hour. No artifacts=good OC.

 

[Captante]

Yes, ATI tool is compatible with Nvidia cards in the latest versions & I've found that the Coolbits clock detection program tends to be a bit optomistic predicting stable overclocks, so I'd also suggest going with ATI tool's maximum... in fact I'd knock it back a little more to like 610mhz myself.
The only way to really tell if your overclock is stable is to play a bunch of real games for several hours & se if you have any problems, so thats what I suggest you do.. as suggested above, COD2 would be a good one to try & if you have Oblivion I'd give that a go too.

 

[hans030390]

I ran rthdribl while running ATI tool, and I just kept changing the clock speeds, because if I pushed it too far on ATI tool, rthdribl would instantly artifact up a lot, and it would quit if lowered to a safe speed. Once you find the top speeds you can get without it artifacting up, take it down about 10-15mhz on the core and mem each.