Computer not booting up, fans not spinning and CPU light flashes red once


New member
Hello, this is my first time building a PC for myself and when I tried to boot it for the first time, no case fans were spinning and also the CPU fan was not spinning. I had taken each piece of the computer out and had tried to run a test with only the 24 pin, CPU pin, CPU, and CPU fan plugged but the CPU fan did not spin either. Upon further inspection, the red light indicating a problem with the CPU flashes red once and goes away. I have checked the CPU and CPU socket and have identified no bent pins and nothing in the socket of the CPU. Nothing seems to be damaged on the motherboard after inspecting it with other people. Any help is appreciated with this and thank you in advance.

My specs for this computer are:

Ryzen 5 1500X

MSI B350 PC Mate Motherboard

Cooler Master Hyper 212 EVO

Corsair - Vengence 1x8 GB

Western Digital Blue 1TB Hard Drive

Asus GTX 1060 3GB

Apevia X-Mirage

EVGA 450W 80+ Bronze



Staff member
Sounds like you may have a faulty motherboard. Does the fans even spin up for a split second? Or do you get any video on screen? Also try removing the memory and reinserting it in another slot.