CPU Light; DRAM Light Flash

[aerdian]

Hello!

My system turned on and ran just fine yesterday and for the last year and a half. I turned it off last night and when I tried turning it on again this morning, it would not POST. All the fans turn on and the lights on my CPU fan also turn on. There is also a light that should turn on on the motherboard, but it does not. My keyboard and mouse also do not connect. There are two red lights that flash on the motherboard. It starts with the CPU red light, which stays on for about 10 seconds and then switches to the DRAM light, which flashes quickly, less than a second.

Any help would be greatly appreciated.

Specs:
Gigabyte X470 Airbus Ultra Gaming
AMD Ryzen 2700X (Stock Cooler)
G.Skill Ripjaws V (8GBx2) @3000MHz
Corsair RM750x
Gigabyte GTX1080
Crucial MX300 1TB SSD
Windows 10 Pro

 

[alexoiu]

Hi, try clearing the CMOS (unplug the power cord and remove the CMOS battery for a minute).

 

[aerdian]

Hi, try clearing the CMOS (unplug the power cord and remove the CMOS battery for a minute).

Unfortunately, I tried that and even tried replacing the battery altogether. I also tested both sticks of RAM. The problem still exists.

 

[alexoiu]

I'd firstly try testing different power supply, then.

 

[aerdian]

I'd firstly try testing different power supply, then.

The only other PSU I have is 500W. I don’t think that would work.

 

[alexoiu]

It should, just for testing. Test without graphics card. See if still red CPU LED.