New PC booted once, now I get 5 long beeps.

[Corey_46]

I just built my new PC and the first time i turned it on everything started perfectly and it installed windows 10 home edition fine onto my 120GB SSD.
Left the house with the computer running for about 40 minutes, came home to the computer on in a sleep mode state that I couldn't wake up from at all (pressing keyboard buttons, mouse buttons and power button) so i long pressed the power button and tried to turn it back on and i get 5 long beeps from mobo speaker.

I have tried reseating the CPU, RAM, GPU, I have tried resetting the CMOS multiple times and have tried booting with just 1 stick of RAM, CPU and on board graphics. I have also tried a different power supply. All giving me the exact same 5 long beeps and no display at all.

mobo: Asrock, AB350M-HDV
CPU: AMD, Ryzen 5 1400
RAM: G.skill DDR4 2x8GB
GPU: sapphire, amd Radeon R9
PSU: Cougar CMX 850W
SSD: Kingston 120GB

 

[teknobug]

5 beeps for that motherboard means CPU, CPU may be defective or toast. Did you properly mount the cooler?

If not, then you may need to replace the CPU.

 

[Corey_46]

I did install the CPU and cooler properly following the manual, and it worked perfectly on first boot. I hope it's not faulty I don't have another am4 CPU to test with though.