Beep Codes - HP P Class 450/500/550/600/650/700/750 Reference Manual

Tests and Error Messages

Beep Codes

Beep Codes
If a terminal error occurs during POST, the system issues a beep code before attempting to
display the error in the upper left corner of the screen. Beep codes are useful for
identifying the error when the system is unable to display the error message.
Beep Pattern Beep Code
— - - - - - - -
— - - - — —
— - - - — - - -
— - - - — - - -
— - - - - - - -
—
— - - - - - - - -
- -
- - — - - - - -
- - - - - - - —
— - -
- - - - - - - - -
- - - - -
-
1. 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.
118
Numeric Code
1-2-2-3 16h
1-3-1-1 20h
1-3-1-3 22h
1-3-3-1 28h
1-3-4-1 2Ch
1-3-4-3 2Eh
2-1-2-3 46h
2-2-3-1 58h
1-2 98h
4-4-2-4 F7
1 B4h
Description
BIOS ROM checksum failure
DRAM refresh test failure
8742 Keyboard controller test failure
Memory initialization error
RAM failure on address line xxxx
RAM failure on data bits xxxx1 of low byte of
memory bus
ROM copyright notice check failure
Unexpected interrupts test failure
Video configuration failure or option ROMs
checksum failure
Crisis Recovery Failure
This does not indicate an error. There is one
short beep before system start-up.
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Chapter 5