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Hardware Maintenance Manual
POST error codes
22
Each time you power-on the system, it performs a series of tests that
check the operation of the system and some options. This series of tests is
called the Power-On Self-Test, or POST. POST does the following operations.
• Checks some basic motherboard operations
• Checks the memory operation
• Starts the video operation
• Verifies that the boot drive is working
If the POST detects a problem, an error message appears on the screen.
A single problem can cause several error messages to appear. When you
correct the cause of the first error message, the other error messages
probably will not appear on the screen the next time you turn on the
system.
POST Error Message
CMOS Date/Time Not Set
CMOS Checksum Bad
Primary Master Hard Disk Error
Secondary Master Hard Disk Error
Keyboard error
Description/Action
The CMOS Date and/or Time are
invalid. This error can be resolved
by readjusting the system time in
Phenix BIOS Setup.
Checksum of CMOS is incorrect.
The computer loads the default
configuration settings. This error
might indicate that CMOS has
become corrupt due to a weak
CMOS battery.
The IDE/ATAPI device configured as
Primary Master/Secondary Master
could not be found or initialized.
Make sure the hard disk drive is
correctly installed.
Cannot initialize the keyboard.
Make sure the keyboard is properly
connected to the computer and
that no keys are held pressed
during POST.
To purposely configure the
computer without a keyboard, set
keyboardless operation in Setup to
Enable. The BIOS then ignores the
missing keyboard during POST.
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