Need help identifying which parts are going wrong.

Spiderfink

Honorable
Sep 17, 2014
4
0
10,510
My rig :
Gigabyte z77N-WIFI motherboard
16GB corsair DDR3 RAM
1TB HD
EVGA Nvidia GTX660 TI 2GB GPU
Corsair TX650 M PSU

After receiving a replacement GTX 660 Ti I experienced incredibly low FPS on all games with the same settings i had for the last 660 (previously i was able to get around a constant 80FPS on League of Legends and now it was virtually unplayable). I uninstalled and re installed my drivers multiple times to no effect. at this point i was convinced it was a GPU problem, However I ran a couple of benchmarks with the Nvidia OC scanner and when I sent them to evga support they said they couldn't see any problems. I had noticed that the computer was quite slow in general sometimes the processor was working overtime at high temps and occasionally the computer had just given up and restarted all while simply browsing the internet. I checked if 16gb of ram was still being acknowledged by the system and it was. Then Suddenly one day the computer would not turn back on. no bios, no fan whirr, nothing. I opened it up and did the paperclip test and the PSU will run for a few seconds then stop. I think it is quite clear that i have a mis-functioning PSU but i can't tell if my problems are solely to blame on just a faulty PSU.
 

Spiderfink

Honorable
Sep 17, 2014
4
0
10,510


Shameless bump ; have been without a computer for coming near to a month. Yes, you were correct that my PSU was faulty. Literally like a day later The computer wouldn't start and low and behold the PSU wasn't passing the paperclip test. Getting a new PSU was a pain, Corsair sent me a dud and were being incredibly slow so I had to buy a new one. The computer actually runs again which is good but the fans are on 100% all the time and it is still really slow. GTA was simply not loading and I was getting like 25 FPS tops on heaven benchmark. I have no idea what is making the CPU so damn hot. I have to leave the computer a while after i turn it off or it will fail to boot. My cable management is not the best but it is a similar arrrangement to how I had it before and it was fine then.
 

Spiderfink

Honorable
Sep 17, 2014
4
0
10,510
Found out the Thermal paste had no contact to the CPU so the fan was blasting away at full blast while acheiving nothing because the heat was simply not being conducted away. wow