IBM 2142, 2140 manual Problem, History

Undetermined		Problem
Check	the	POST Error	History
The system board retains the last three POST error				codes in	a	POST	Error
History		saved in	CMOS memory. Each time a POST error	code is	detected
at	the	power-on/power-off cycle, it is added to the bottom			of	the	list in the
POST	Error	History.

Most recent error

code is listed

at bottom

Figure 2-5. POST Error History Example

To view the POST Error History:

Press F9 when the IBM APTIVA logo appears.

If any POST errors are

recorded,

the POST

Error

History

is

displayed

with

the

most-recent

error

shown

at

the

bottom

of

the

list.

To

check

for

the

error

again,

repeat

the

above

steps

to

add

the

error to the

list once more. You should

see

the

same POST

error

code

listed

in the last

two

lines

of

the

POST

Error

History.

To

print

a

copy

of

the

screen to

an

attachedPrint Screen

printer,.

press

If an error code is present, go to

“Index of Symptoms, Messages, Error

Codes, or

Beeps”

on

page 2-9.

If

no

error

code

is

present,

continue

with

this check.

Check the power supply voltages (see

“Power

Supply”

on page 2-34). If

the

voltages

are

correct, return here

and

continue

with

the

following

steps:

1. Power-off

the

system

unit.

2-56