BIOS

BIOS (Basic Input Output System) from PC’s report errors in the hardware at boot with a code of beeps, that can help diagnose the issue in case there’s no image being displayed. Error code reported by BIOS during POST (Power On Self Test): Fatal errors # of beeps Meaning 1 DRAM refresh error 2 640Kb base RAM error 4 system timer error 5 CPU error 6 Keyboard Gate A20 error 7 Virtual mode exception error 9 BIOS-ROM checksum error Non-Fatal errors # of beeps Meaning 3 Memory test failure conventional and extended 8 Monitor error with tracing vertical and horizontal Enjoy! (and if you do, you can Buy Me a Coffee ) ...