IBM 88643RU Service Guide - Page 58

Installing, memory, modules

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2. Remove the cover from the server (see "Removing the cover and bezel" on page 31). 3. Make sure the Memory Hot-Swap Enabled LED is lit on the top of the memory card to be replaced. If the LED is not lit, enable memory mirroring (see "Active Memory" on page 40). 4. Prepare the new memory card to go into the server: a. Touch the static protective package containing the memory card to any unpainted surface on the outside of the server. Then, remove the memory card from the package. b. Place the memory card on a flat, static protected surface with the DIMM connectors facing up. c. Install memory DIMMs in the memory card (see "Installing memory modules"). 5. Remove the memory card from the server: a. Make sure that the retention levers on the edge of the memory card are fully open. b. Lift the memory card out of the server. 6. Replace the memory card: a. Grasp the new memory card by the retention levers and turn the memory card so that the connector aligns with the connector on the microprocessor board. b. Insert the memory card into the memory card connector. c. Press the memory card into the connector and close the retention levers. Installing memory modules Memory modules are installed on a memory card. DIMMs must be installed in pairs of the same type and speed. To use the memory mirroring feature, all the DIMMs that are installed in the server must be the same type and speed, and the feature must be supported by your operating system. The following instructions are for installing one pair of memory modules. To install memory-module pairs on more than one memory card, repeat steps 3 though 7 for each memory card. Installing a memory module: To install a memory module, complete the following steps: 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. 42 IBM System x3850 Type 8864: Problem Determination and Service Guide

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2.
Remove
the
cover
from
the
server
(see
“Removing
the
cover
and
bezel”
on
page
31).
3.
Make
sure
the
Memory
Hot-Swap
Enabled
LED
is
lit
on
the
top
of
the
memory
card
to
be
replaced.
If
the
LED
is
not
lit,
enable
memory
mirroring
(see
“Active
Memory”
on
page
40).
4.
Prepare
the
new
memory
card
to
go
into
the
server:
a.
Touch
the
static
protective
package
containing
the
memory
card
to
any
unpainted
surface
on
the
outside
of
the
server.
Then,
remove
the
memory
card
from
the
package.
b.
Place
the
memory
card
on
a
flat,
static
protected
surface
with
the
DIMM
connectors
facing
up.
c.
Install
memory
DIMMs
in
the
memory
card
(see
“Installing
memory
modules”).
5.
Remove
the
memory
card
from
the
server:
a.
Make
sure
that
the
retention
levers
on
the
edge
of
the
memory
card
are
fully
open.
b.
Lift
the
memory
card
out
of
the
server.
6.
Replace
the
memory
card:
a.
Grasp
the
new
memory
card
by
the
retention
levers
and
turn
the
memory
card
so
that
the
connector
aligns
with
the
connector
on
the
microprocessor
board.
b.
Insert
the
memory
card
into
the
memory
card
connector.
c.
Press
the
memory
card
into
the
connector
and
close
the
retention
levers.
Installing
memory
modules
Memory
modules
are
installed
on
a
memory
card.
DIMMs
must
be
installed
in
pairs
of
the
same
type
and
speed.
To
use
the
memory
mirroring
feature,
all
the
DIMMs
that
are
installed
in
the
server
must
be
the
same
type
and
speed,
and
the
feature
must
be
supported
by
your
operating
system.
The
following
instructions
are
for
installing
one
pair
of
memory
modules.
To
install
memory-module
pairs
on
more
than
one
memory
card,
repeat
steps
3
though
7
for
each
memory
card.
Installing
a
memory
module:
To
install
a
memory
module,
complete
the
following
steps:
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.
42
IBM
System
x3850
Type
8864:
Problem
Determination
and
Service
Guide