Question 9A post code error...please help

Jul 17, 2020
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After a long time, I turned on my PC recently to find that the motherboard is showing 9A Qcode. PC is not recognizing any external peripherals. I tried removing and replacing ram sticks but to no avail. I even replaced the thermal paste on processor. I replaced my power supply thinking that it was at fault but still PC wont boot up. I tried flashing new BIOS using BIOS flashback.The flashing process completed successfully but still cannot access BIOS.I also reset CMOS but the error persists. I don't know how to fix this error.
PS:When I boot my PC, the motherboard LED's light up and after some time they turn off automatically

My PC SPECS
intel core i7 3770K
ASUS ROG MAXIMUS V GENE
Gskill trident 3 DDR4 RAM
CORSAIR 1200W PSU
Any help in this matter would be appreciated.
 

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