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Highly surprising to see a 780 classi nuking itself at 1.27v (if that is indeed what happened). Do you have another system to try the card? Also, do give the CMOS clear a good try.
If it is the 780, then EVGA won't give you any issues replacing it.
have you removed the card and visually inspected it?? the cooler can be removed by just the 4 screws surrounding the gpu die.
A snap noise could possibly be one of the caps.
Don't bodge it now. Have you removed the gfx card and test pc without it?
That sucks. sorry to read this![]()

Yeah I used over 1.3v on mine on air and had no problems. Very strange that it died at 1.25v at the desktop.



Just an update. Got my replacement 780 today, and its garbage!
The one that popped did 1300mhz game stable all day. This one can't even last 1 min in Unigine Heaven at 1215mhz!
I mean this is my 3rd 780 Classy in a little over a month and every one ended up being bad. Really wish I could get a refund instead of replacement only. So much for paying a $100 premium.
Sorry for the rant. Had to get it off my chest!![]()
Try to overclock it on another PC. My gut feeling is that you have issues with your PSU.
And I assume you have set an aggressive fan profile, not having the card crashing because of temps yes?
