CPU worked, and now it doesn't.

[Tone._]

Built a new PC for my brother not too long ago (Ryzen 5 5600G, 16 GB, MSI B550M Mortar Wifi) and it worked for a while, until it didn't.

He was playing a game when it started. The problem is with the CPU as claimed by the Debug LED lights on the motherboard.

We tried plugging the PSU cables in again, tried just letting it cool down even over night, tried clearing the CMOS and tried the infamous turning it off and on again.

I really hope the CPU isn't fried so I want to try everything before I declare that it is.

What can i try to do to get it working again?

[tkitch]

If nothing else, retail parts like those each have /at least/ a 3yr warranty, so they're all covered.

 

Unplug power, pull CMOS Battery
Remove the RAM Sticks

Wait 30 minutes.

 

Reinstall RAM, Reinstall CMOS Battery

Plug in and try again.

 

If that doesn't help?  RMA Stuff.

[RAS_3885]

If the above doesn't work, try with just one RAM stick at a time. Could be a faulty RAM module causing issues.