Last Post: Display Codes; Phoenixbios Post Messages (Power On Self Test) - HP OmniBook 4000 Familiarization Manual

Last POST:
DISPLAY CODES
PhoenixBIOS
POST Messages
(Power On Self
Test)
Message
Diskette drive failure
Diskette drive x failure where x=O or x=1
Diskette read failure - press Fl to retry boot (or may
also say, press Fl to retry boot, F2 for SETUP utility)
Display adapter failed; using alternate
Gate A20 failure
Fixed disk configuration error
Fixed disk controller failure
Fixed disk failure
There are a number of POST tests that are performed after the BEEP Code
tests. Failure of one or more of these tests will result in a displayed failure code
(i.e., 03044). It is extremely important not to interpret a failure code immediately
as a hardware failure until:
all accessories are removed, including memory cards external floppy, port
expander, modems, PCMCIA cards, LAN cards, printers, VGA-out cables,
external pointing devices, clean AC power is provided (no "chained" battery
chargers or auto adapters), and press reset.
If the unit still fails to boot, it requires service.
NOTE: make sure the display is adjusted to be visible.
Within POST, there are three kinds of messages:
Error messages: These messages appear when there is a failure in
hardware, software, or firmware.
Informational messages: These messages provide infon-nation to the user
but require no action.
Beep codes: This kind of warning sounds when POST errors occur and the
screen is not available.
Because the OmniBook cannot be repaired by a service center below the FRU
level, these messages will provided limited troubleshooting or repair information.
However, the support specialist and service technician will be able to identify
trends in repairs from these codes.
___________
47
Possible Cause
The 0 or 1 drive failed or is missing.
The designated drive has either failed or is missing.
The diskette is either not formatted or is defective.
The color/monochrome switch is set incorrectly.
The primary video adapter failed.
The keyboard controller is not accepting commands,
specifically, the enable and disableA20 commands.
The specified configuration is not supported or
doesn't match the actual hardware
The controller card has failed.
The fixed disk may be defective.