Question PC showing random colors, but keeps running

hadley992

Honorable
Feb 10, 2018
3
0
10,510
After using my computer for 15-30 minutes, it freezes and starts flashing random colors (on my CPU's integrated graphics, since it just shows a black screen when I'm using my graphics card) , making it unusable, even though I can still hear audio coming from it and the disk is still working.

This is completely random, considering it has happened when I was playing games or just browsing on the internet.

I have already swapped my RAM and my disk, as well as formatting my drive and uninstalling all video drivers using DDU. I have also reset my Bios, but I still have the same problem.

I am also pretty sure it's not due to overheat, because my CPU and GPU are both under 60° when this happens.

How do I fix this?

My system specs:

CPU: i7-4770S
GPU: GTX 1050 Ti
RAM: 8x2 DDR3 1600Mhz
SSD: Kingston SA400 480GB
PSU: Corsair VS400
Motherboard: Gigabyte H81m-s1 Rev 2.1