HP dx2200 - Microtower PC Service & Reference Manual page 82

POST Error Messages
POST Error Messages
Screen Message
CMOS Checksum Error.
Defaults Loaded
ROM BIOS Checksum
Error - system halted
Keyboard/Interface
Error
Keyboard Error or No
Keyboard Present
Hard Disk Install Failure
Memory Test Failure
C–4
Probable Cause
CMOS corrupt or bad
RTC battery.
ROM BIOS may be
corrupted.
Keyboard controller
failure.
Keyboard not present or
system not responding
when keyboard controller
is initialized.
Cannot find or initialize
the hard drive.
If POST detects an error
during memory testing,
additional information
appears about the type
and location of the
memory error.
415606-001
Recommended Action
Press F1 to save defaults.
Replace RTC battery.
Download the current ROM BIOS from
the HP Web and reflash the ROM BIOS.
Download the most current ROM BIOS
from the Web and reflash the system
ROM.
Reconnect keyboard with computer
turned off.
Check connector for bent or missing
pins.
Ensure that none of the keys are
depressed.
Replace keyboard.
Replace system board.
Reconnect keyboard with computer
turned off.
Check connector for bent or missing
pins.
Ensure that none of the keys are
depressed.
Replace keyboard.
Replace system board.
Check Computer Setup (F10 Setup) for
presence of hard drive.
Check drive cable connections.
Replace hard drive.
Run Computer Setup (F10 Setup) or
Windows utilities.
Ensure memory modules are installed
correctly.
Verify proper memory module type.
Remove and replace memory modules
one at a time to isolate faulty module.
Replace the faulty memory module.
If error persists after replacing memory
module, replace the system board.
Service Reference Guide, dx2200 MT