Beep Codes - HP Kayak XU Technical Reference Manual

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
Beep Pattern
Code
- - - - - - - 1-2-2-3
—
- - - 1-3-1-1
— — —
- - - 1-3-1-3
— — - - -
- - - 1-3-4-1
— - - - - —
- - - - - - - - - - 1-3-4-3
—
- - - - - 2-1-2-3
- - —
2-2-3-1
- - - - - - - —
- - 1-2
—
4-4-2-4
- - - - - - - - - - - - - -
- 1
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.
5 Power-On Self-Test and Error Messages
Numeric
Code
16h BIOS ROM check-sum failure
20h DRAM refresh test failure
22h 8742 Keyboard controller test failure
2Ch RAM failure on address line xxxx
2Eh RAM failure on data bits xxxx
46h ROM copyright notice check failure
58h Unexpected interrupts test failure
98h Video configuration failure or option ROMs check-sum
failure
F7 Crisis Recovery Failure (only if switch 10 is down).
B4h This does not indicate an error. There is one short beep
before system startup.
Beep Codes
Description
1
1
of low byte of memory bus
73