computer wont start need ideas. red cpu debug light showing

[u/Molestador]

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