Struggling to get my 3600 to post on an MSI Mortar B450 motherboard. I have performed the BIOS flashback (with the pc fully assembled, not that it should matter) but still all I get is repeat failed boots with the CPU fault LED on after several seconds. My gut instinct is that as it takes a few seconds to happen the motherboard passes all the basic checks (do I have a CPU, do I have ram etc.) and just does not like the Ryzen 3600.
I have tried the standard actions:
- Re-flashed the BIOS via flashback just in case the first time had failed.
- No ram - Ram LED comes on.
- No GPU or no display port cable plugged into GPU - GPU LED comes on.
- Occasionally it goes to the 4th LED, which is related to the boot device. I'm not overly concerned with this one!
I am yet to take the motherboard out of the case, which I will likely try as part of my standard troubleshooting to ensure I haven't got a short. The CPU I double checked upon installation, plus there was little resistance given by the locking arm - Therefore I think checking for bent CPU bins to be unlikely.
Any help would be much appreciated!