Chapter 3. Diagnostics

The IBM 2210 diagnostic programs test the system hardware and dete problems. The diagnostic routines include three types of tests:

Ÿ Power-on self-test (POST)

ŸExtended POST

ŸMenu-driven diagnostics

 

The diagnostic package includes service aids that

may

be

used to

 

nostic

logs

and

to view the vital product

data (VPD).

 

 

 

Note:

When

using a locally attached terminal to run the

IBM

2210

dia

grams, the

service port line speed must

be set

to

9600 bps. This

se

stant

and

cannot

be changed.

 

 

 

 

 

Diagnosing Hardware Problems

Running the diagnostics requires complete control of the IBM 2210.

Attention:

Do not shut down

the

IBM 2210

without

the knowledge and

pe

of the

customer. Contact

the

customer’s

system

administrator before

s

Power-On Self-Test

The power-on self-test (POST) provides a basic confidence test of the processor, memory, and interfaces.

Starting

the

POST

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The POST runs automatically whenever the

IBM

2210

is

powered

on. If

machine

is

already powered

on and you want to execute the POST:

 

1Stop

the

IBM

2210

by

unplugging

the

power

cord

from

the

power

2

Plug

the

IBM

2210

into

the

power

outlet.

 

 

 

 

 

 

3

If

the

system OK green)LED

(is

off

and

the system amber LED is

on

a

 

about 2 minutes, run the Extended POST.

 

 

 

 

 

 

 

Extended POST

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

It is possible to run an

extended POST that does not require

attac

minal. Extended POST allows you

to

test

memory

more extensively

than

norm

POST. Follow

 

these steps

to run

diagnostics

without

a

terminal:

 

 

 

1Stop

the

IBM

2210

by

unplugging

the

power

cord

from

the

power

2

Disconnect

the

cables

from

the

ports.

 

 

 

 

 

 

 

3

Plug

the

IBM

2210

into

the

power

outlet. Wait for a port gree

 

(2 to 3 seconds) and

then

push

the

reset

button once. (See

Fi

 

page

 

1-5.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Copyright IBM Corp. 1994,

1998

 

 

 

 

 

 

 

 

 

 

 

 

3-1

 

 

 

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IBM SY27-0345-06 manual Diagnosing Hardware Problems, Power-On Self-Test, Extended Post, Starting