MSI Unify x570 Error Code 64?

[ssmacc]

Turned on my PC this morning and it doesn't post, error code "64", nothing is on-screen other than a white curser in the top left, everything powers up but nothing on screen, apparently its a

CPU DXE initialization

I've tried the usual, removing components clearing the CMOS, but nothing...it's not overclocked...I'm a bit stuck as I can't even get into the BIOS...anyone have any ideas?

Any help appreciated...

 

[ssmacc]

Hello,

I had tried that, it turns out I'm an idiot, having checked the Error Code manual it turns out the error was b4 and not 64 (hangs head in shame)

Problem was a SSD I had plugged into a USB port...works ok once the PC has booted, but it stops the PC from booting up if plugged in...

2 hours of panicking and fiddling later all back to normal and lesson learned

Cheers for the suggestion though.