Hello,
Some Background:
In the last 1-2 weeks, my computer has been crashing in one of two ways. 1. the computer loses power and restarts itself right afterwards. there is no error messages, warning, or bsod. 2. The screen goes black, programs still operate in the background, but the display will not return unless the computer is restarted. These crashes always occur under load.
What I've done so far:
I have taken out the GPU and performed a prolonged CPU stress test with no issues. I have stress tested the graphics card with Unigine Heaven Benchmark and the computer crashes within 10 seconds of start the program. even on the basic preset. When ran after a cold start, it lasts several more minutes. I have not been able to induce a crash through Furmark yet.
From this I have 2 theories. My graphics card is overheating and/or failing and the computer is shutting down as a failsafe. The 2nd theory is that for whatever reason, the PSU is unable to supply enough power to the graphics card under load and the computer shuts down.
My Problem:
I have no idea how to go about ruling out the PSU as the cause of the crashing. Does anyone have suggestions for what I should do to verify that this issue stems from the GPU or the PSU?
System specs: (all components are at default clock speeds)
Motherboard: MSI Z97
CPU: Intel i7 4790k 4.0 GHz
GPU: Nvidia GeForce 980 Ti
PSU: corsair HX750i
let me know if anything else is necessary
Thanks in advance!