HP Vectra 500 Series - Manual (Page 114)

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4 Summary of the HP/Phoenix BIOS
HP/Phoenix BIOS (BIOS version: GJ.07.xx)
Beep Codes (BIOS version: GJ.07.xx)
If a terminal error occurs during POST, the system issues a beep code before
attempting to display the error. Beep codes are useful for identifying the
error when the system is unable to display the error message.
Other An error message may be displayed and the PC may “hang”
for 20 seconds and then beep. The POST is probably
checking for a mass storage device which it cannot find and
the PC is in Timeout Mode. After Timeout, run Setup to
check the configuration.
Beep Pattern
Numeric
Code
Description
B4 This does not indicate an error.
There is one short beep before system
startup.
98 Video configuration failure or
Option ROMs checksum failure
16H BIOS ROM checksum failure
20H DRAM refresh test failure
22H 8742 Keyboard controller test failure
2C RAM failure
2E RAM failure on data bits in low byte of
memory bus
30 RAM failure on data bits in high byte of
memory bus
46 ROM copyright notice check failure
58 Unexpected interrupts test failure
Message Corrective Action and/or Explanation