Question Gigabyte Motherboard won't boot. Codes?

[secretumpiratica]

Hello. I just got home from a year deployed. Tried booting up my desktop computer that was off for that year in storage. The lights and fans come on, and then it does the POST as normal. However, I'm getting 1 long beep followed by 2 short beeps. To narrow down the issue I unplugged all devices and drives and even pulled the GPU but still getting the same error codes. Dusted everything and tried re-seating most of the cables. Removed cmos and put back in after a few minutes. What could I look at? What could it possibly be? Thank you!

Edit: it's a Gigabyte 970a-up3p, rx-380?, Amd cpu, gskill ram. Honestly forget some of the details but not really relevant as it worked perfectly for 5 years or so. Just trying to figure out what that beep code means I guess?

 

[Lutfij]

Could you please pass on the specs to your build like so:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:

You could try to initially reset the BIOS. While the system is powered down and disconnected from the wall and display, remove the CMOS battery and replace after 30 mins. See if that revives the system.

 

[secretumpiratica]

I'll replace CMOS. Put some into in initial post edit bottom.

 

[Gam3r01]

Maybe at this point we should wait for the OP to return before posting additional suggestions.