Ibm 6643 User Manual download pdf (Page 37)

System

board

removal

1.

Remove

the

rear

bucket

housing,

see

“Rear

bucket

housing

(rear

cover)

removal”

on

page

21.

2.

Remove

the

rear

EMC

cover

assembly,

see

“Rear

EMC

cover

assembly

removal”

on

page

23.

3.

Disconnect

all

cables

attached

to

the

system

board.

4.

Unplug

any

installed

PCI

cards.

5.

Remove

the

nine

system

board

screws.

6.

Lift

the

system

board

from

the

chassis

assembly.

Power

inverter

board

removal

Attention:

1.

Unplug

the

power

cord

from

the

computer

before

servicing

the

Power

inverter

board.

2.

Do

not

power

on

the

computer

unless

the

power

inverter

board

cover

with

insulator

is

properly

installed.

Chapter

4.

FRU

replacements

29

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