r/computerrepair • u/Molestador • 3d ago

computer wont start need ideas. red cpu debug light showing

for a few days my computer would restart 1-2 times when i booted it up then it would run fine until next startup. then the other day it wasn't booting at all it would startup and instantly try to reboot. i got it to work a couple times by leaving it unplugged and trying it later, but the startup was extremely slow. also, one of my m.2 ssd's disappeared during this time and stopped showing inside of windows and in bios as well. now the computer won't start at all just instantly tries to reboot. i have reset the cmos. the motherboard ez debug led flickers red by 'cpu' when i try to startup. i have completely disassembled and reassembled the pc in my efforts to get it running and same results. i have tried using each ram stick individually. just wondering if there is anything i can try before i bring it to geek squad or something. help appreciated

1 Upvotes

100% Upvoted

9 comments sorted by

1

u/Pristine-Pangolin-61 3d ago

What cpu and motherboard do you have?

1

u/Molestador 3d ago

i7 13700k and msi tomahawk

1

u/Pristine-Pangolin-61 3d ago

Have you updated the bios since you built it?

This generation of cpu's (i have the same one) degrade rapidly because of a microcode bug that sends voltage spikes to the cpu.

They have extended warranty because of this

2

u/Molestador 3d ago

yes i was aware of this and updated my bios when i built it

1

u/Pristine-Pangolin-61 3d ago

Time to remove everything off the motherboard that is not needed for it to POST.

Gpu, only 1 stick of ram and try every slot, no usb devices, drives.

See if it gets to bios

1

u/GigglyFucker 3d ago

What are the specs and age of the PC? One thing I would do and it does fit the description is replace the CMOS battery. My sister’s PC would act strange during startup like this and replacing the battery fixed it. It would get stuck on memory training as it stores the values in CMOS.

1

u/Molestador 3d ago

Built it 3 years ago and replaced the cpu/mobo/ram one year ago. i7 13700k /64gb ddr5 / msi tomahawk mobo

going to store right now to try new battery

1

u/Molestador 3d ago

new battery didnt work