Post beep. 1 long beep and 2 shorts beeps. No display and USB not working

charleslaw7

Prominent
Aug 25, 2017
4
0
510
One day I turned off my PC at night. Next morning when my PC booted it made 3 beeps(1 long followed by 2 short) continuously. It is not the motherboard as I just bought a new one a couple of days ago and I tried my old motherboard but made the same beeps.

I5 7500
Gtx1060
Asus prime B250m-A
1x 8gb ddr4 crucial Ram
EVGA 500W Bronze power supply
 

charleslaw7

Prominent
Aug 25, 2017
4
0
510


I tried installing in all slots and different direction. Didn't seem to hear a click though even though I had pressed quite hard and was in as much as possible