Ok guys basically I have a Compaq presario SG3 120UK 2 days ago I bought a RAM without looking at the comp ability so I realised that the ram wasn't because it was a ddr3 slot. I took out the old one just to check the size and put it back in, then once I started my computer is started beeping 1 short 1 long. I can't access my BIOS because I have a black screen, also the graphics card is ATI radeon 3000 and it is integrated. Can somebody help me I would appreciate it.
More aboutmotherboard beeping short long
try with single stick ram, also reset CMOS battery.
the great randini
compact : one long one short is cmos checksum error, i dont see 1 short 1 long.