Hi team,I recently (Wednesday just gone) just built a new machine (using some old parts, GPU and Drives) after moving to the US and my old 2500k finally dying, and it's been running fine for 5 days. However, yesterday I left it on when I went out as I was downloading some steam files, and when I got back it appeared to stuck in a boot loop. Most of the time it makes it past the BIOS splash page and then just black screens and restarts, other times it was throwing a BSOD with various errors (IRQL not less or equal, and PAGE FAULT IN NONPAGED AREA being the ones I can remember). That said, the BSODs seem to have disappeared today.SpecsRyzen 5 3600MSI X570 Gaming plus16 GB G-Skill Ripjaws V Series DDR4MSI RX480 (old part)Corsair Rm550xSamsung 850 Pro 256GB SSD (Boot drive; old part)Some random HDDs for storageTroubleshooting so far
Windows Auto-repair (as during the week a number of updates were installed)
Fails to complete with the machine often restarting
Flashed the newest BIOS to the motherboard.
Flashed successfully with no changes, still looping
Barebones boot with CPU, 1 RAM stick (tried both independently), SSD, and GPU. (Eech RAM stick as tested in both the A2 and A1 slots)
No changes, still looping
Barebones boot with CPU, 1 Ram stick, HHD (without a windows install, for a new install), and GPU.
No changes, still looping
Barebones boot with CPU, 1 RAM stick, bootable USB, and GPU.
No changes, still looping
Reinstall of Windows onto the SSD via a bootable USB.
Fails, can't make it into the USB
CMOS reset via removing battery and unplugging machine overnight; also via JBAT1 reset
No changes, still looping
The motherboard debug LED on the motherboard seems to indicate a CPU error. But what's weird to me is that the machine can happily sit in the BIOS menu with no problems whatsoever, and I would have thought if the CPU was the fault this wouldn't happen. I am currently running Memtest86 just to double check the memory, I know the first pass completed without error, but I had to leave before seeing the other three.My only thought is that I don't have the additional 4-pin CPU connector plugged into the board, and that is causing issues? I have a Molex to 4 pin convertor on the way, but any thoughts/suggestions would be most welcome.Thanks kindly.