Hi all, looking for some help getting my PC to boot. I built a gaming PC about 2 years ago and everything had been going fine. Went to turn it on the other day and it was just power cycling (turning on for a few seconds then shutting down). I tried a few things but nothing worked. I was getting a red CPU light on the ez debug LEDs and after trying to reset/update the BIOS, I assumed something had broken.
I've tried:
New PSU - replacing an old 550w OCZ ZS with new Corsair 650w - doesn't seem to make a difference. It will power on fine when I try a BIOS update but the machine still power cycles with a red CPU light when trying to do a normal boot.
NEW CPU - bought a new Ryzen 5 5600x CPU. No difference, still the red CPU light on the old AND new mobo
NEW Mobo - Replaced the MSI B450 Tomahalk max motherboard with a new MSI B550 gaming gen3 mobo and tried updating the BIOS, still I get the red CPU light when I tried to start it up.
At this point the only thing I can think of that I've not tried is the RAM. It has 2x 8gb RAM strips in it. I've tried swapping them around, using only 1 but still I get the CPU light. If I remove both strips then the machine does get further, there's no red CPU light it just beeps and the RAM light flashes and it turns off.
Before I waste any more money replacing the RAM, I thought it best to check with some experts. At this point, it's pretty much a new PC but I'm running out of ideas.
Any help appreciated.
I've tried:
New PSU - replacing an old 550w OCZ ZS with new Corsair 650w - doesn't seem to make a difference. It will power on fine when I try a BIOS update but the machine still power cycles with a red CPU light when trying to do a normal boot.
NEW CPU - bought a new Ryzen 5 5600x CPU. No difference, still the red CPU light on the old AND new mobo
NEW Mobo - Replaced the MSI B450 Tomahalk max motherboard with a new MSI B550 gaming gen3 mobo and tried updating the BIOS, still I get the red CPU light when I tried to start it up.
At this point the only thing I can think of that I've not tried is the RAM. It has 2x 8gb RAM strips in it. I've tried swapping them around, using only 1 but still I get the CPU light. If I remove both strips then the machine does get further, there's no red CPU light it just beeps and the RAM light flashes and it turns off.
Before I waste any more money replacing the RAM, I thought it best to check with some experts. At this point, it's pretty much a new PC but I'm running out of ideas.
Any help appreciated.
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