BIOS Beep Codes for Boot Block in Flash ROM

Code

Beeps

For Boot Block in Flash ROM

EQh

Initialize the chipset

E1h

Initialize the bridge

E2h

Initialize the CPU

E3h

Initialize the system timer

E4h

Initialize system I/O

ESh

Check force recovery boot

E6h

Checksum BIOS ROM

E7h

Go to BIOS

E8h

Set Huge Segment

E9h

Initialize Multiprocessor

EAh

Initialize OEM special code

EBh

Initialize PIC and DMA

ECh

Initialize Memory type

EDh

Initialize Memory size

EEh

Shadow Boot Block

EFh

System memory test

FQh

Initialize interrupt vectors

F1h

Initialize Run Time Clock

F2h

Initialize video

F3h

Initialize System Management Mode

F4h

1

Output one beep before boot

FSh

Boot to Mini DOS

F6h

Clear Huge Segment

F7h

Boot to Full DOS

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