brodiegeek

Thanks for the confirmation. I've never had a motherboard DOA though, how common is that?

To start, here are my specs: CPU: Ryzen 5 2600 MOBO: ASRock B450 Pro4 RAM: Crucial Sport LT 16GB DDR4 Graphics Card: MSI GTX 970 PSU: EVGA 80+ Certified 430W Storage: Intel 660p M.2 SSD I have a very weird issue with a PC I just built. I put together the PC and was able to install Windows 10. Windows 10 then successfully booted, but after a few seconds of running, the PC crashed. I've had this same problem with another PC I built in the past, but the only component I am using from the old PC is the GPU. Some more info: After the PC crashes, it will turn back on (lights and all) but it won't display anything. The fans on the CPU rev and derev in a sort of 2 second cycle. Very weird. The PC won't crash when in the BIOS Things I have already tried: Moving the SSD to a different M.2 slot Reapplying thermal paste to the CPU Stress testing the GPU in another system (it didn't crash) Using a different GPU Using different RAM Using a different SSD Using a hard drive instead Using three different power supplies (all with enough headroom Wattage-wise) Reinstalling Windows 10 (four different times, now) Using different RAM slots Based on the list up there, the issue can't be: The GPU, because I stressed tested it in another system, and I tried using a different GPU in the system. The SSD, because I tried using a different SSD and tried using a hard drive as well The RAM, because I tried using different RAM (and I tested my own in another system) The PSU, because I have used three different power supplies, and I've had the same issues across the board Overheating, I have a fresh coat of thermal paste on the CPU and monitored it's temperature in the BIOS (39C maximum so far) Incorrect RAM slot, because for one: it actually starts up, and for two: I tried every slot on the board What it might be: CPU MOBO This is a very weird problem, and I don't know how to fix it. I ordered a new motherboard and it will be here tomorrow. Any ideas?