Question PC not POSTing, makes 2+4 beeps

sd008

Commendable
Feb 11, 2018
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1,510
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My PC, which has been working fine for more than 1 year, with no changes made to the hardware, has suddenly stopped booting. Instead of making a short beep and displaying the BIOS screen, the screen now stays blank and it makes 2 beeps, then pauses a few seconds and then makes 4 beeps. The CPU/GPU fans keep spinning, and nothing else happens.

The components are as follows.

Mobo: Gigabyte GA-AB350M-D3H AMD AM4 Socket Motherboard (is this what's dead?)
CPU: AMD Ryzen 3 1200
GPU: Zotac 750ti
RAM: Crucial 2x4GB DDR3
PSU: Antec 650W
SSD: 250GB Samsung
HDD: 2TB WD 5400RPM

I've tried clearing the CMOS by shorting the jumper, removed the battery and put it back in. Changed the ram sticks/slots around and tried with 1 stick of RAM. So far, nothing has changed, still the 2+4 beeps and no screen.

If anybody has any suggestions, I'd be very thankful. I don't have any other PCs in my house and I can't leave my house due to quarantine, but also can't work without a PC.
 

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