P C L 5 1 0 0 B I O S S e t u p & P O S T

Terminal POST errors and beep codes

There are several POST routines that shut down the computer if they fail. If possible, the BIOS displays a two-digit hexadecimal code and/or sounds a sequence of beeps to identify the point at which POST failed. The most usual errors are listed below.

The BIOS also issues one long tone followed by two short tones if the video system is faulty or if an external ROM module (including video ROM) fails.

Turn off the computer for 30 seconds and then try again. If the fault persists, make a note of the error code (if any) and call your supplier or authorised maintainer.

Code

Beeps

Test which failed

16

1-2-2-3

BIOS ROM checksum

20

1-3-1-1

DRAM refresh.

22

1-3-1-3

8742 keyboard controller

2C xxxx

1-3-4-1

RAM failure on address line xxxx.

2E xxxx

1-3-4-3

RAM failure on data bits xxxx of low byte of memory bus.

30 xxxx

1-4-1-1

RAM failure on data bits xxxx of high byte of memory bus.

46

2-1-2-3

Check ROM copyright notice

58

2-2-3-1

Test for unexpected interrupts

98

1-2

Video configuration failure, or option ROM checksum

 

 

failure. (One long, two short beeps.)

 

 

 

PCL5100 USER GUIDE 7