GPU Consistent Crashing - PC Restarting?

hellomynameis321

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Nov 9, 2014
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4,510
So last night I was playing around with my core and memory clocks, due to me having a GTX 750 TI I cannot change voltage or power consumption, and I believe I either massively overclocked or underclocked my GPU because when I stress tested the program my display driver crashed and then the entire screen started flickering with artifacts. Then, the whole system crashed. It restarted itself and when it reached the Windows 8 login screen it crashed again. It continued to restart and crash until eventually the Windows advanced startup option came up. I chose to reset my computer to factory settings. After this my computer worked fine, but when I tried to open a game, my screen went a solid pink color then went to black and again started the restart loop again. The only way I can get out of this restart loop is if I put in the GPU driver disk that came with my pc. When I do that, I can get into Windows fine and use the computer normally, but if I run any gpu intensive program, the entire computer crashes and again gets into the crash and restart loop. My system still detects my video card, and can identify its core clocks, memory clocks, etc.. and their all on default settings. I really hope my video card isn't dead, if any one could help me out I would appreciate it greatly.

PS this is my gpu-z info:

http://imgur.com/7cD22j3
 

hellomynameis321

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Nov 9, 2014
7
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4,510


I've tried reinstalling the drivers multiple time, in fact the only way I can boot my system regularly is booting it up with the driver disk in the cd-rom
 

hellomynameis321

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Nov 9, 2014
7
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4,510


To even open windows i need to put the driver disk into the cd -rom, then i download the drivers off of the website. But when I go back to a 3d application I have to reinstall all of those drivers.
 
I think that the driver crash due to the OC may have corrupted windows, I doubt a restore would work as nothing was purposely written. If you have a spare HDD around try to install windows (or a demo of win10, the point is to prove that the GPU is not trashed). If a new installation does not work then the GPU has probably been killed.
 

jb6684

Distinguished
Sounds like you might have Fried your GPU.......... the OC settings won't stick, so you should be running a normal clock speed. Unless of course you have your OC program set to Start on boot up, if so remove it / or turn that option off.

OC'ing has NO effect on your drivers or driver install.
 

hellomynameis321

Reputable
Nov 9, 2014
7
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4,510


I don't think I have completely killed the gpu, at some points I still can run furmark normally at the usual non-overclocked fps (46). but then after a few seconds it crashes windows. The temperature never goes above 40 degrees Celsius, so for me it is not an overheating issue. My clocks are running at factory defaults so I'm not sure. Is it even possible to run furmark for a short period of time on a fried gpu?