PC SOMETIMES wont power up

TodVonOben

Reputable
Apr 2, 2015
4
0
4,510
Hey Im having a very strange issue with my PC, SOMETIMES it wont start up or boot, the fans and LEDs will go for a split second and then stop again, but other times I just press the power button and it starts up normally, and will run for weeks, but maybe eventually it shuts down or crashes, and wont restart again after that till some random arbitrary time in the future that I try it again and it works again

Ive tried completely reassembling and cleaning components and stuff to no avail

the problems first surfaced when I changed to a new PC case and CPU heatsink, but i cant find any issues related to this that would be the cause, and began to think since it was just the first time id shut it down in a long time its the first time i realised that it wouldnt boot, and the problem had appeared before and I just hadnt noticed

PSU and GPU relatively new, Mobo ram and CPU a couple years old