IBM 88643RU Service Guide - Page 69

peripheral

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SAS backplane To remove the Serial Attached SCSI (SAS) backplane, complete the following steps. Release tabs SAS connectors Guide channels 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. Pull the hard disk drives out of the server slightly to disengage them from the SAS backplane. 5. Note where the SAS cables are connected, and then disconnect the 2 SAS cables from the SAS backplane. 6. Squeeze the two blue release tabs. 7. Lift the SAS backplane out of the server slightly; then, disconnect the power cable and remove the backplane. To install a SAS backplane, complete the following steps: 1. Connect the power cable to the replacement backplane. 2. Slide the backplane into the card guides. 3. Align the two slots in the backplane with the two guide tabs; then, press firmly until the blue tabs secure the backplane. 4. Reconnect the SAS cables to the backplane. 5. Replace the top cover. 6. Replace the hard disk drives. 7. Reconnect the external cables and power cords. Chapter 4. Removing and replacing server components 53

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SAS
backplane
To
remove
the
Serial
Attached
SCSI
(SAS)
backplane,
complete
the
following
steps.
Release tabs
Guide channels
SAS connectors
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.
Pull
the
hard
disk
drives
out
of
the
server
slightly
to
disengage
them
from
the
SAS
backplane.
5.
Note
where
the
SAS
cables
are
connected,
and
then
disconnect
the
2
SAS
cables
from
the
SAS
backplane.
6.
Squeeze
the
two
blue
release
tabs.
7.
Lift
the
SAS
backplane
out
of
the
server
slightly;
then,
disconnect
the
power
cable
and
remove
the
backplane.
To
install
a
SAS
backplane,
complete
the
following
steps:
1.
Connect
the
power
cable
to
the
replacement
backplane.
2.
Slide
the
backplane
into
the
card
guides.
3.
Align
the
two
slots
in
the
backplane
with
the
two
guide
tabs;
then,
press
firmly
until
the
blue
tabs
secure
the
backplane.
4.
Reconnect
the
SAS
cables
to
the
backplane.
5.
Replace
the
top
cover.
6.
Replace
the
hard
disk
drives.
7.
Reconnect
the
external
cables
and
power
cords.
Chapter
4.
Removing
and
replacing
server
components
53