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Gigabyte GTX 660 Ti Crashing

Last response: in Graphics & Displays
September 23, 2012 7:35:54 AM

I have a Gigabyte GTX 660 Ti. System ran fine for 3 days and even played some games(skyrim, diablo 2). Well I went to install the Borderlands 2 that came with the card today and after playing about 10-15 minutes on Max settings my system just shuts off. Ive done some googling and some research and it sounds like a psu problem but I just want some second opinions because im no expert at this stuff just a hobbyist.

Heres my system stats.
Sabertooth Z77 Mobo
16gb(2x8) Gskill ram
Psu is a Rosewill Extreme series RX 750
Gigabyte GTX 660 Ti

As far as I can tell(Ive ran monitor programs) the gpu and cpu arent overheating(60c).
Ive updated to the latest nvidia drivers.

Any other ideas on the problem here guys?
How much power does this card need? Is my PSU not enough?(the newegg site says
+3.3V@24A, +5V@30A, +12V1@20A, +12V2@20A, +12V3@20A, +12V4@20A, -12V@0.5A, +5VSB@3A

However the owners manual states DC output as +12v 60A 720W

Anyone help clear all this up for me please?
September 24, 2012 6:32:47 AM

Any suggestions?