| If the card has been a pipe-disabled gpu, sometimes voltage is all that is needed to get the bad set performing. Sometimes they simply disable the set of piplines maybe because power-consumption was too high...not that it artifacted...sometimes they have excellent yeilds and an excess of gpu's so higher-performing parts are sold as lesser parts...
See, nVidia seem to have this bad habit of selling failed parts by simply re-labelling. For example, the 7900GTO...no longer to be found...7900GTX's w/ a bad batch of Samsung memory and a lower-clocked bios is what it really is...(new working units have infineon ram, AFAIK...may have changed since)...
6800GS i think had issues with capacitors? Black-screening or something?
Irregardless, it's hard to know what to do in terms of modding without knowing what gpu is under the heatsink, either using software or by physical indentification.
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