Strange one here. I had a working PC that I’ve been using for months simply stop on me. Went to turn it on and got maybe a split second of power and then nothing. After multiple attempts and unplugging and trying each component, finally gave up and considered it was either mobo or CPU (I tried with 3 different power supplies all 450 - 650w). So decided to replace both including new DDR4 RAM.
Just installed brand new mobo and cpu and having same issue. I’m now certain power supply, motherboard, and CPU can’t be at fault. When I plug everything in except power to the CPU-PWR1 connector on mobo, the PC gets full power (just doesn’t post). Holding power button on case won’t turn it off, so must turn off switch on power supply. As soon as I plug in 8 pin into CPU_PWR1 and turn on, I’m back to the split second power and then nothing. I’m not using the CPU_PWR2 4pin, but I’ve read that wasn’t necessary. Any ideas?
Motherboard: MSi MPG X570 Gaming Plus
CPU: AMD Ryzen 5 3600
Power Supply: Coolermaster 600w silent pro
Graphics: GeForce GTX 1070
Just installed brand new mobo and cpu and having same issue. I’m now certain power supply, motherboard, and CPU can’t be at fault. When I plug everything in except power to the CPU-PWR1 connector on mobo, the PC gets full power (just doesn’t post). Holding power button on case won’t turn it off, so must turn off switch on power supply. As soon as I plug in 8 pin into CPU_PWR1 and turn on, I’m back to the split second power and then nothing. I’m not using the CPU_PWR2 4pin, but I’ve read that wasn’t necessary. Any ideas?
Motherboard: MSi MPG X570 Gaming Plus
CPU: AMD Ryzen 5 3600
Power Supply: Coolermaster 600w silent pro
Graphics: GeForce GTX 1070