Standard Original IBM POST Error Codes
After repeated requests for beep codes i have decided to post them here maybe they could be pinned Code Description 1 short beep System is OK 2 short beeps POST Error - error code shown on screen No beep Power supply or system board problem Continuous beep Power supply, system board, or keyboard problem Repeating short beeps Power supply or system board problem 1 long, 1 short beep System board problem 1 long, 2 short beeps Display adapter problem (MDA, CGA) 1 long, 3 short beeps Display adapter problem (EGA) 3 long beeps 3270 keyboard card IBM POST Diagnostic Code Descriptions Code Description Mau liat lebih lanjut