HP Vectra XE310 Technical Reference Manual page 33

HP Preboot Diagnostics (Beep Codes)
When your PC starts up, its BIOS performs a Power-on Self Test (POST) to test your hardware
configuration for any problems. If a problem is detected during the POST, an error is displayed on your
PC's monitor.
If you hear a series of beeps, you should count them as this will help you detect the cause of the problem.
Beep
Pattern
- - - - - - -
—
- - -
— — —
- - -
— — - - -
— - - - - - - —
- - -
— - - - - —
- - - - - - - - -
—
-
- - - - - - - - -
—
-
- - - - -
- - —
- - - - - - - —
- -
—
-
1.Non-HP memory modules are not supported. Only HP memory modules should be
used.
2.If the BIOS detects error 2C or 2E (base 512K RAM error), it displays an additional word-
bitmap (xxxx) indicating the address line or bits that failed. For example, "2C 0002" means
address line 1 (bit one set) has failed. "2E 1020" means data bits 12 and 5 (bits 12 and 5 set)
have failed in the lower 16 bits.
Checkpoint
Code
F4h Initialize boot
F5h Clear Huge segment
F6h Boot to Mini DOS
F7h Boot to Full DOS
Beep Numeric
Code Code
1-2-2-3 16h
1-3-1-1 20h
1-3-1-3 22h
1-3-3-1
1-3-4-1 2Ch
1-3-4-3 2Eh
1-3-4-3 30h
2-1-2-3 46h
2-2-3-1 58h
1-2 98h
1 B4h
POST Routine Description
Description
BIOS ROM check-sum failure
DRAM refresh test failure
8042 Keyboard controller test failure
RAM module missing or not installed correctly
2
RAM failure on address line xxxx
2
RAM failure on data bits xxxx of low byte of memory bus
2
RAM failure on data bits xxxx of high byte of memory bus
ROM copyright notice check failure
Unexpected interrupts test failure
Video configuration failure or option ROMs check-sum failure
This does not indicate an error. There is one short beep before system startup.
BIOS Overview
1
29