Display randomly blanks - GPU or other component?

Kunal_20

Prominent
May 21, 2017
2
0
510
Hi,
I have been trying to fix this for a while now and its absolutely frustrating. My PC specs are as mentioned:

AMD FX 6300
HyperX 8 GB DDR3
GA78LMT-USB3
Sapphire R9 270x connected to three displays
Corsair 650W PSU

My computer boots up, and as it starts running, suddenly the displays go blank. I can hear the fans spinning faster after this. I don't know which fans start spinning after this issue. I tried swapping RAM, resetting BIOS, power flushing all components. However, the issue is still persistent. Sometimes the display goes blank just as the BIOS is booting up, sometimes it boots into windows and goes blank. I tried cleaning the GPU, CPU heatsink, etc. Sometimes the PC runs for hours without the issue. But mostly it blanks right after booting up.

Today, when I booted up, I got BSOD after boot logo with error code 0x000021a. I tried to fix this but the display goes blank every time.

Could this be a RAM issue, GPU issue or CPU issue? My guess is either the motherboard or the GPU is gone bad.

My CPU temp peaks at 79. GPU peaks at 75-80.

I really need help with this so please assist in figuring this out.

Thank you.