IBM 88643RU Service Guide - Page 75

board, assembly

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PCI board assembly Complete the following steps to remove a PCI board assembly. Handle Retainer screws DCAC 1. Read the safety information that begins on page vii, and "Handling static-sensitive devices" on page 31. 2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables necessary to replace the device. 3. Remove the top cover and bezel (see "Removing the cover and bezel" on page 31). 4. Remove the power supplies and power-structure assembly (see "Power-supply structure" on page 51). 5. Remove the I/O board (see "I/O board" on page 49). 6. Remove all adapters and adapter dividers, and place the adapters on a static-protective surface. Note: You might find it helpful to note where each adapter is installed before removing the adapters. 7. Disconnect the PCI switch card cable from the PCI board (see "PCI switch card assembly" on page 60). 8. Disconnect the SAS backplane power cable from the PCI board (see "SAS backplane" on page 53). 9. Remove all fans (see "Hot-swap fan" on page 34). 10. Remove the memory cards (see "Removing and replacing a memory card" on page 41). 11. Lift the microprocessor-tray release latch, open the microprocessor-tray levers, and pull the microprocessor tray out of the server slightly (see "Removing and installing a microprocessor" on page 55). 12. Remove the power backplane (see "Power backplane" on page 61). 13. Loosen the blue retainer screws on the rear of the server. Chapter 4. Removing and replacing server components 59

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PCI
board
assembly
Complete
the
following
steps
to
remove
a
PCI
board
assembly.
Retainer
screws
Handle
1.
Read
the
safety
information
that
begins
on
page
vii,
and
“Handling
static-sensitive
devices”
on
page
31.
2.
Turn
off
the
server
and
peripheral
devices,
and
disconnect
the
power
cords
and
all
external
cables
necessary
to
replace
the
device.
3.
Remove
the
top
cover
and
bezel
(see
“Removing
the
cover
and
bezel”
on
page
31).
4.
Remove
the
power
supplies
and
power-structure
assembly
(see
“Power-supply
structure”
on
page
51).
5.
Remove
the
I/O
board
(see
“I/O
board”
on
page
49).
6.
Remove
all
adapters
and
adapter
dividers,
and
place
the
adapters
on
a
static-protective
surface.
Note:
You
might
find
it
helpful
to
note
where
each
adapter
is
installed
before
removing
the
adapters.
7.
Disconnect
the
PCI
switch
card
cable
from
the
PCI
board
(see
“PCI
switch
card
assembly”
on
page
60).
8.
Disconnect
the
SAS
backplane
power
cable
from
the
PCI
board
(see
“SAS
backplane”
on
page
53).
9.
Remove
all
fans
(see
“Hot-swap
fan”
on
page
34).
10.
Remove
the
memory
cards
(see
“Removing
and
replacing
a
memory
card”
on
page
41).
11.
Lift
the
microprocessor-tray
release
latch,
open
the
microprocessor-tray
levers,
and
pull
the
microprocessor
tray
out
of
the
server
slightly
(see
“Removing
and
installing
a
microprocessor”
on
page
55).
12.
Remove
the
power
backplane
(see
“Power
backplane”
on
page
61).
13.
Loosen
the
blue
retainer
screws
on
the
rear
of
the
server.
Chapter
4.
Removing
and
replacing
server
components
59