Strange-Current

I put my new build together and it was working a couple days before the DRAM light showed on the motherboard and it refused to POST. I purchased a lot of parts from Amazon so I easily replaced my motherboard and memory, and hooked up an old PSU which I know is good. I got the same error, so I changed out the CPU as well and the error was gone. So everything appears to be working well with an old PSU and all new parts. Did I just have a bad CPU, and I can connect my new PSU? Or, did my PSU fry out my CPU? The PSU is a new Seasonic platinum 600 watt so it should be of good quality so idk. If I take the PSU in to a local shop can they test it and tell me? Could it test out good but fluctuate later down the road? Btw I wasn't stressing the components system was just idling.

Thank you for the reply! I do not believe the TUF Gaming X570 supports BIOS flash. It was one of the downsides of an otherwise great budget friendly x570. If I understand correctly, you're saying that clearing CMOS may not resolve if there is some corruption? So no BIOS flash means I have no alternative to motherboard swap? I have everything installed including AIO, everything connected, I'm not looking forward to the MOBO swap because I do these things very slowly trying to be careful and not make mistakes.

PLEASE HELP! I built a PC using the parts listed below (all new purchases). Initially it went to BIOS with no problem. That was a week or so ago, I enable DOCP for the memory at that time and restarted and it registered the correct settings then I turned it off. Last night I turned it on to install BIOS update, Windows, drivers, etc. ASUS website had my particular motherboard page down, so I did other things and left the computer on just sitting on the BIOS screen. I went back to it a couple hours later and decided to turn it off because it was too late. Well, I pressed the button and instead of turning off it power cycled a couple times and the screen just remained black despite the fact the computer ending up appearing to be sitting in an "on" state (LED's on). The motherboard has 4 LED's to indicate problems: "DRAM, CPU, VGA, and BOOT." The "DRAM" light was lit. I tried clearing CMOS with, and without, the motherboard battery installed. I tried another set of RAM to see if the sticks went bad or something. Nothing resolved the problem. I also noticed that the fans on the GPU were not doing an initial spin-up like they had done prior. I installed the 5700XT in an old computer just to confirm that it still had video output and it did so I think I ruled that out as a contributing factor. I ordered a replacement of the same motherboard and a new set of RAM. So I have some questions: I was not stressing the components at all, what could have gone wrong? Do you think a swap of the motherboard/RAM will resolve the problem? Is there a chance the problem returns? The PSU is good quality but could it be faulty and cause a problem like this after motherboard swap? (Wondering if the PSU is to blame) As it is now PSU seems to power the system fine but no POST. Why weren't the GPU fans spinning, did it detect a RAM problem and therefore never initialize the GPU? Could it be the CPU as well? Would it be the CPU if MOBO and RAM replacement fails? I put the computer together using the following core parts: Ryzen 3600X ASUS Tuf x570 Crucial Ballistix Tactical Tracer RGB 3200 MHz DDR4 DRAM Desktop Gaming Memory Kit 16GB (8GBx2) CL16 BLT2K8G4D32AET4K Gigabyte 5700XT Seasonic Platinum 600W