IBM 8658 User Guide - Page 133

Removing, system, board

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Page 133 highlights

1 Tab 2 Power supply backplane To remove the power supply backplane: 1. Power off the server. 2. Disconnect all external cables from the server. 3. Remove the cover. See "Removing the cover, door, and bezel" on page 48. 4. Disconnect cables from the backplane. 5. Press the arrow on the tab 1 to release the backplane. 6. Slide out the power supply backplane 2 to remove. Removing the system board 1 Screws (9) 2 System Board To remove the system board: 1. Power off the server. 2. Disconnect all external cables from the server. 3. Remove the cover. See "Removing the cover, door, and bezel" on page 48. 4. Remove the rear air flow fan. See "Replacing a fan assembly" on page 69. 5. Remove the DASD backplane assembly. See ″"Removing the DASD backplane assembly" on page 122.″ 6. Remove the power supply backplane. See ″"Removing the power supply backplane" on page 122.″ 7. Disconnect the system board cables. 8. Remove the screws (9) 1 . 9. Gently pull out the system board 2 to remove. FRU information (service only) 123

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±1²
Tab
±2²
Power
supply
backplane
To
remove
the
power
supply
backplane:
1.
Power
off
the
server.
2.
Disconnect
all
external
cables
from
the
server.
3.
Remove
the
cover.
See
“Removing
the
cover,
door,
and
bezel”
on
page
48.
4.
Disconnect
cables
from
the
backplane.
5.
Press
the
arrow
on
the
tab
±1²
to
release
the
backplane.
6.
Slide
out
the
power
supply
backplane
±2²
to
remove.
Removing
the
system
board
±1²
Screws
(9)
±2²
System
Board
To
remove
the
system
board:
1.
Power
off
the
server.
2.
Disconnect
all
external
cables
from
the
server.
3.
Remove
the
cover.
See
“Removing
the
cover,
door,
and
bezel”
on
page
48.
4.
Remove
the
rear
air
flow
fan.
See
“Replacing
a
fan
assembly”
on
page
69.
5.
Remove
the
DASD
backplane
assembly.
See
″
“Removing
the
DASD
backplane
assembly”
on
page
122.
″
6.
Remove
the
power
supply
backplane.
See
″
“Removing
the
power
supply
backplane”
on
page
122.
″
7.
Disconnect
the
system
board
cables.
8.
Remove
the
screws
(9)
±1²
.
9.
Gently
pull
out
the
system
board
±2²
to
remove.
FRU
information
(service
only)
123