IBM 2142, 2140 manual Start

Start

This is the entry point for all check procedures. The

check

procedures

use

failure

symptoms,

POST

error

codes,

or

beeps to help determine the

failing

field replaceable unit (FRU). Follow

the suggested

check

procedures

or

use

the

Diagnostics

and

Utilities CD to determine the problem FRU.

The

Diagnostics

and

Utilities program

comes

on

one

CD

supplied

with

this

book. Use only

this

CD for

all Type

2140

and

Type

2142

IBM

Aptiva

Personal

Computers.

The Diagnostics and Utilities program is intended to test only IBM products. Non-IBM products, prototype cards, or modified options can give false errors and invalid system responses.

All	voltages in	the check	procedures	are positive	unless otherwise shown.
And,	use frame	ground for	all voltage	checks unless	otherwise specified.

Note: If the check procedures instruct you to replace a FRU and the error message remains the same, an option adapter card might be causing

the failure. Remove all option adapter cards, one at a time, until the error changes or the problem is no longer apparent. Replace the last option adapter card removed.

The hard disk drive contains preloaded software. Refer to “Software Installation Procedure” on page 4-20 to reinstall the original software. Be sure to reload the software on the primary hard disk drive (drive C) when replacing it.

Note: The drives in the system you are servicing might have been re-arranged or the drive startup sequence changed. Be extremely careful during write operations, such as copying, saving, or formatting. Data or programs can be overwritten if you select an incorrect drive.

Ask

the

customer

to back

up

any

additional

software

from the

hard

disk drive

before

you

take

any

action.

How to Diagnose

Combined

FRUs:

If an

adapter

or

device

consists of

more than one FRU, any of the FRUs might

cause

an

error

code. Before

replacing

the

device

or

adapter, remove the

FRUs, one by one,

to see if the

symptoms

change.

If you have been directed here from another check procedure and were

instructed

to

replace

the system board, and that does not correct the

problem,

reinstall

the

original

system

board

and

go

through

“Start”

again.

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