Question Pc wont boot, dram led constantly on

Mar 22, 2020
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Okay so, I had this same build for 5 years
Mobo: asus m5a99fx pro r2.0 gpu: gigabyte windforce r9 280x cpu : amd fx 8300 psu: super flower sf-650p14he 650W now, it was working fine until recently.
The first time booting the computer in a while I heard beeping and cpu fan error showed on screen, I have managed to fix this error (or i think i did) by renewing thermal paste.
After that, the pc now will turn on but wont display anything, with dram led constantly shining in red, Ihave also noted that cpu led briefly lights up whenever I press memOk button, but it wont work.

what i tried:
*Removing ram sticks and trying them on different slots making sure they're prefectly placed

*removing the cmos battery to reset bios configuation
*reset the ram memory just like it says in the manual
*removing gpu,cpu


I would really appreciate any help since this pc is my only means of entertainment especially in this pandemic lockdown. Thanks.