Reference Guide

Table 13. Beep codes and possible problems

Beep codes Possible problems

One Possible system board failure—BIOS ROM checksum failure.

Two No RAM detected

NOTE: If you installed or replaced the memory module, ensure that the memory module

is seated properly.

Three Possible system board failure—Chipset error

Four RAM read/write failure

Five Real‑time Clock failure

Six Video card or video controller failure

Seven Processor failure

NOTE: This beep code is supported for computers with Intel processor only.

Eight Display failure