What causes artifacts ?

[aussie-revhead]

Hi everyone , excuse the noobness of my question , but is there a particular thing that causes artifacts ? I am running my 6600GT at 575/1150 , and anything below about 2.6 ghz it does not artifact . From 2.6 up it artifacts , with severity increasing as overclock increases . I can play UT at 2.65 ghz but it creates too many false images in game . Any help would be great .

[eva2000]

read http://i4memory.com/showthread.php?t=327 it can be ram related or if you set LDT multipler too high (read LDT multiplier description in guide at http://i4memory.com/showthread.php?t=327 )

[babyelf]

if i'm not mistaken there are 2 types of artifacting.. which you can identify.. one of them corresponds to your core increase and one of them to your memory..

can't remember how they look like .. sorry =/

[Statts]

6600GT running at 575 core? WTH? My XFX 6800GT is only at 431?

[aussie-revhead]

Thanks guys ,
Eva , nah my multi is set to 3x and I tried some more volts anyway and it didnty help. Might I need more power supply ? I am using the stock 430 watt that came with my tsunami dream case .
babyelf , if you might stumble upon that website again it would be real helpful .
Stats , yeah 6800 are different , and that may be why 6600gt's are such a good mid range card , or they just measure it differently or something . Mine stock is 500 mhz and the nvidia overclock interface detects the maximum safe overclock as about 575 mhz , I havent tried beyond that ( never needed to anyway ) .

Cheers .

[aussie-revhead]

Will a better cooler help the overclocking performance ?

[KingYubbo]

Yes

[aussie-revhead]

Even if the nvidia heat monitor says its not hot under load ? About 50 degrees while playing ? Redline is set at 127 , is that right ?