Não, a minha é a versão em stock (650/1625/1800 Mhz) e parece funcionar normalmente nestas frequências. Com OC, por menor que seja, já há o problema de sinal e som engasgando, e não é coincidência acontecer sempre com placas que vem com OC de fábrica, mas já li relatos em stock também. Para as versões em OC, baixar os clocks parece resolver. Além do fórum da eVGA, há relatos aos montes na newegg:
MSI 9600 GT OC (700/1900 Mhz):
"Had to back the memory clock speed down to get it to run stable for steam games (team fortress 2 and DoD). At first I thought it was SLI and disabled a card, but ended up being the other problem."
"Will not stay stable at its stock overclock, I belive the memory is overheating. Only way I could stop the crashing was to clock the memory down to 900."
"While in World of Warcraft it Black screens and the fan turns on high, randomly. Must hard boot after black screen. After reading forum after forum about the same issue it makes me sad I spent this much on a card that is gonna die out when ever it wants. It also took out my sound drivers for my onboard sound. Thinking I messed something up I bought a sound card and that fixed that issue. After reading more forums, other people having the same issue with sound said a simple reformat would fix driver issue. Got a program riva from guru3d to see if playing with the settings would help with black screen, it hasnt yet."
Zotac 9600 GT OC (725/2000 Mhz):
"Intermittant crashing while playing almost every game with black screen and sound stuttering. Tried new PSU, drivers etc... no help. I suspect either the overclock of the card or a software compatibility issue with the driver. The only game I have which never crashes is UT3. Weird."
Gigabyte 9600 GT (650/1800 Mhz):
"Crashes constantly to black screen with echoing sound of game in background. Have to hard restart computer. No error code and monitor light goes amber with ""no input"" appearing on monitor. Only crashes in some games."
"crashes cs source every 10 min causing me to reboot comp. no screen, just get a blank screen, drivers need to get up to date..."
Só para citar alguns exemplos, ainda há outros relatos por lá. Vejam que até com versão em stock... falta de respeito mais uma vez da NVIDIA, que nos faz de cobaias, assim como já tinha acontecido com 8800 GTS 320 MB que sofria para desalocar texturas da VRAM por uma falha no driver que a NVIDIA só reconheceu 6 meses depois e demorou mais 2 meses para corrigir. Vou falar com o vendedor para vê se é possível a troca por uma GTS 512, nem que tenha que gastar o que não tenho.