POST Error Messages

POST Numeric Codes and Text Messages

This section covers those POST errors that have numeric codes associated with them. The section also includes some text messages that may be encountered during POST.

✎The computer will beep once after a POST text message is displayed on the screen.

Numeric Codes and Text Messages

Code/Message

Probable Cause

Recommended Action

 

 

 

BIOS ROM checksum

The checksum of the BIOS

Verify the correct ROM.

error–System halted

code in the BIOS chip is

Flash the ROM is needed.

 

incorrect, indicating that the

If an expansion card was recently added,

 

BIOS code may have become

 

remove it and see if the problem remains.

 

corrupt.

 

Clear CMOS.

 

 

 

 

If the message disappears, there may be a

 

 

problem with the expansion card.

 

 

Replace the system board.

 

 

 

CMOS battery failed

The CMOS battery is no

Replace the RTC battery.

 

longer functional.

 

 

 

 

CMOS checksum

Checksum of CMOS is

Check the battery and replace, if necessary.

error—Defaults

incorrect, so the system loads

 

loaded

the default equipment

 

 

configuration. A checksum

 

 

error may indicate that CMOS

 

 

has become corrupt. A weak

 

 

battery may have caused this

 

 

error.

 

 

 

 

CPU at nnnn

Displays the running speed of

None.

 

the CPU.

 

 

 

 

Press ESC to skip

 

The user may press ESC to skip the full memory

memory test

 

test.

 

 

 

HARD DISK INSTALL

Cannot find or initialize the

Make sure the controller is installed correctly in

FAILURE

hard drive controller or the

the BIOS. If no hard drives are installed, be

 

drive.

sure the Hard Drive selection in Setup is set to

 

 

NONE.

 

 

 

Keyboard error or no

Cannot initialize the

Make sure the keyboard is attached correctly

keyboard present

keyboard.

and no keys are pressed during POST. To

 

 

purposely configure the system without a

 

 

keyboard, set the error halt condition in Setup

 

 

to HALT ON ALL, BUT KEYBOARD. The BIOS

 

 

then ignores the missing keyboard during

 

 

POST.

 

 

 

Memory Test:

This message displays during

None.

 

a full memory test, counting

 

 

down the memory areas being

 

 

tested.

 

 

 

 

 

C–2

361685-001

Service Reference Guide, dx5150

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HP dx5150 manual Post Numeric Codes and Text Messages, Code/Message Probable Cause Recommended Action
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dx5150 specifications

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