IBM 86884RX Maintenance Manual - Page 125

Field, replaceable, units

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Chapter 5. Field replaceable units The following information describes procedures for removing and installing certain components inside the system. Only a qualified service technician is authorized to replace the components described in this section. Important: The field replaceable unit (FRU) procedures are intended for trained servicers who are familiar with IBM xSeries products. Note: Before servicing this system, read "Installation guidelines" on page 77 and "Safety information" on page 197. Memory-board assembly The memory-board assembly consists of the memory board, memory, memory-board VRM, and the memory switch card and cable. The following sections describe how to remove the memory board, memory-board VRM, and the memory switch card and cable. For instructions to remove and replace memory, see "Installing memory" on page 98. Memory board Note: When replacing the memory board, you must either update the system with the latest firmware or restore the pre-existing firmware that the customer provides on a CD image. See "Updating the firmware" on page 39. Before you begin: v Read "Installation guidelines" on page 77. v Read the safety notices at "Safety notices (multilingual translations)" on page 201. v Read "Handling static-sensitive devices" on page 200. Complete the following steps to replace a memory board: 1. Turn off the server (see "Turning off the server" on page 8), and disconnect all power cords and external cables. 2. Open the cover (see "Opening the cover" on page 88). © Copyright IBM Corp. 2003 115

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Chapter
5.
Field
replaceable
units
The
following
information
describes
procedures
for
removing
and
installing
certain
components
inside
the
system.
Only
a
qualified
service
technician
is
authorized
to
replace
the
components
described
in
this
section.
Important:
The
field
replaceable
unit
(FRU)
procedures
are
intended
for
trained
servicers
who
are
familiar
with
IBM
xSeries
products.
Note:
Before
servicing
this
system,
read
“Installation
guidelines”
on
page
77
and
“Safety
information”
on
page
197.
Memory-board
assembly
The
memory-board
assembly
consists
of
the
memory
board,
memory,
memory-board
VRM,
and
the
memory
switch
card
and
cable.
The
following
sections
describe
how
to
remove
the
memory
board,
memory-board
VRM,
and
the
memory
switch
card
and
cable.
For
instructions
to
remove
and
replace
memory,
see
“Installing
memory”
on
page
98.
Memory
board
Note:
When
replacing
the
memory
board,
you
must
either
update
the
system
with
the
latest
firmware
or
restore
the
pre-existing
firmware
that
the
customer
provides
on
a
CD
image.
See
“Updating
the
firmware”
on
page
39.
Before
you
begin:
v
Read
“Installation
guidelines”
on
page
77.
v
Read
the
safety
notices
at
“Safety
notices
(multilingual
translations)”
on
page
201.
v
Read
“Handling
static-sensitive
devices”
on
page
200.
Complete
the
following
steps
to
replace
a
memory
board:
1.
Turn
off
the
server
(see
“Turning
off
the
server”
on
page
8),
and
disconnect
all
power
cords
and
external
cables.
2.
Open
the
cover
(see
“Opening
the
cover”
on
page
88).
©
Copyright
IBM
Corp.
2003
115