IBM 88643RU Service Guide - Page 77

Power, backplane

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Note: You might find it helpful to note where each adapter is installed before removing the adapters. 5. Disconnect the PCI switch card ribbon cable from the card. 6. Lift the release latches and slide the card away from the chassis; then, remove the card from the server. To install a PCI switch-card assembly, complete the following steps: 1. Lower the card into place so that the lips on the bottom of the EMI shielding material fit into the chassis, and slide the card into place until the two release latches snap securely. 2. Connect the ribbon cable to the PCI switch-card assembly. 3. Install the adapters and adapter dividers. 4. Replace the top cover and bezel. 5. Reconnect the external cables and power cords. Power backplane Complete the following steps to remove a power backplane. 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. 4. Remove all fans (see "Hot-swap fan" on page 34). 5. Remove the memory cards (see "Removing and replacing a memory card" on page 41). 6. 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). 7. Remove the power supplies and the power-supply structure (see "Power-supply structure" on page 51). Chapter 4. Removing and replacing server components 61

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Note:
You
might
find
it
helpful
to
note
where
each
adapter
is
installed
before
removing
the
adapters.
5.
Disconnect
the
PCI
switch
card
ribbon
cable
from
the
card.
6.
Lift
the
release
latches
and
slide
the
card
away
from
the
chassis;
then,
remove
the
card
from
the
server.
To
install
a
PCI
switch-card
assembly,
complete
the
following
steps:
1.
Lower
the
card
into
place
so
that
the
lips
on
the
bottom
of
the
EMI
shielding
material
fit
into
the
chassis,
and
slide
the
card
into
place
until
the
two
release
latches
snap
securely.
2.
Connect
the
ribbon
cable
to
the
PCI
switch-card
assembly.
3.
Install
the
adapters
and
adapter
dividers.
4.
Replace
the
top
cover
and
bezel.
5.
Reconnect
the
external
cables
and
power
cords.
Power
backplane
Complete
the
following
steps
to
remove
a
power
backplane.
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.
4.
Remove
all
fans
(see
“Hot-swap
fan”
on
page
34).
5.
Remove
the
memory
cards
(see
“Removing
and
replacing
a
memory
card”
on
page
41).
6.
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).
7.
Remove
the
power
supplies
and
the
power-supply
structure
(see
“Power-supply
structure”
on
page
51).
Chapter
4.
Removing
and
replacing
server
components
61