Boot Error Codes - HP Compaq dc7100 DT Technical Reference Manual

8.3.4 Boot Error Codes

The BIOS provides visual and audible indications of a failed system boot by using the LEDS on
the PS/2 keyboard and the system board speaker. The error conditions are listed in the following
table.
Visual [1]
Num Lock LED blinks
Scroll Lock LED blinks
Caps Lock LED blinks
Num, Caps, Scroll Lock LEDs
blink
Num, Caps, Scroll Lock LEDs
blink in sequence
NOTE:
[1] Provided with PS/2 keyboard only.
Technical Reference Guide
Table 8-2
Boot Error Codes
Audible
1 short, 2 long beeps
2 long, 1 short beeps
1 long, 2 short beeps
1 long, 3 short beeps
none
361834-002
Meaning
System memory not present or incompatible.
Hardware failure before graphics initialization.
Graphics controller not present or failed to
initialize.
ROM failure.
Network service mode
BIOS ROM
8-5