Error Messages and Beep Codes
5.5 BIOS Beep Codes
Whenever a recoverable error occurs during
An external ROM module (for example, a video BIOS) can also issue audible errors, usually consisting of one long tone followed by a series of short tones. For more information on the beep codes issued, check the documentation for that external device.
There are several POST routines that issue a POST terminal error and shut down the system if they fail. Before shutting down the system, the
If POST completes normally, the BIOS issues one short beep before passing control to the operating system.
Table 65. Beep Codes
Beep Description
1Refresh failure
2Parity cannot be reset
3First 64 KB memory failure
4Timer not operational
5Not used
68042 GateA20 cannot be toggled
7Exception interrupt error
8Display memory R/W error
9Not used
10CMOS Shutdown register test error
11Invalid BIOS (e.g. POST module not found, etc.)
97