HP Brio 8500, Online Manual, Page: 29 / 82

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2 About Your BIOS
Warning Messages and the Power-On Self-Test
Warning Messages and the Power-On Self-Test
The POST is executed each time the system is turned on or a reset is performed. The POST process checks that system
components are operating correctly and initializes certain system parameters.
Beep Codes
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 messages.
The following table is a list of beep codes issued for terminal errors.
' ()$ *$
B4h This does not indicate an error
There is one short beep before system startup
16h BIOS ROM checksum failure
20h DRAM refresh test failure
22h 8742 Keyboard controller test failure
2Ch RAM failure on address line
2Eh RAM failure on data bits in low byte of memory bus
30h RAM failure on data bits in high byte of memory bus
46h ROM copyright notice check failure
58h Unexpected interrupts test failure
98h Video configuration failure or no card installed
Option ROM’s checksum failure