IBM 72335LU User Guide - Page 52

Hot-replacing, memory

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c. Install DIMMs in the memory card (see "Installing DIMMs" on page 41). 5. Add the memory card. Attention: When you move the memory card, do not allow it to touch any components or structures inside the server. a. Grasp the memory card by the retention levers and turn the memory card so that the connector aligns with the connector on the microprocessor board and the guides on the chassis. b. Insert the memory card into the memory-card connector. c. Press the memory card into the connector and close the retention levers. d. Slide the orange release latch to the locked position. If you have other devices to install or remove, do so now. Otherwise, go to "Completing the installation" on page 50. Hot-replacing a memory card For you to hot-replace a memory card, memory mirroring must be enabled. See "Active Memory" on page 38 for information about how to enable memory mirroring. To hot-replace a memory card in the server, complete the following steps: 1. Read the safety information that begins on page v and "Installation guidelines" on page 26. Attention: Static electricity that is released to internal server components when the server is powered-on might cause the server to halt, which might result in the loss of data. To avoid this potential problem, always use an electrostatic-discharge wrist strap or other grounding system when you work inside the server with the power on. 2. Remove the server cover (see "Removing the cover and bezel" on page 28). 3. Make sure the memory hot-swap enabled LED is lit. If the LED is not lit, enable memory mirroring (see "Active Memory" on page 38). 4. Prepare the new memory card: a. Touch the static-protective package that contains 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-protective surface, with the DIMM connectors facing up. c. Install memory DIMMs in the memory card (see "Installing DIMMs" on page 41). Attention: When you move the memory card, do not allow it to touch any components or structures inside the server. 5. Remove the memory card from the server: a. Slide the orange release latch to the unlocked position. Attention: To avoid loss of data, make sure that the memory port power LED is off before you remove the memory card. b. Make sure that the retention levers on the edge of the memory card are fully open. c. 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 and the guides on the chassis. 40 IBM System x3850 M2 and System x3950 M2 Type 7141: User's Guide

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c.
Install
DIMMs
in
the
memory
card
(see
“Installing
DIMMs”
on
page
41).
5.
Add
the
memory
card.
Attention:
When
you
move
the
memory
card,
do
not
allow
it
to
touch
any
components
or
structures
inside
the
server.
a.
Grasp
the
memory
card
by
the
retention
levers
and
turn
the
memory
card
so
that
the
connector
aligns
with
the
connector
on
the
microprocessor
board
and
the
guides
on
the
chassis.
b.
Insert
the
memory
card
into
the
memory-card
connector.
c.
Press
the
memory
card
into
the
connector
and
close
the
retention
levers.
d.
Slide
the
orange
release
latch
to
the
locked
position.
If
you
have
other
devices
to
install
or
remove,
do
so
now.
Otherwise,
go
to
“Completing
the
installation”
on
page
50.
Hot-replacing
a
memory
card
For
you
to
hot-replace
a
memory
card,
memory
mirroring
must
be
enabled.
See
“Active
Memory”
on
page
38
for
information
about
how
to
enable
memory
mirroring.
To
hot-replace
a
memory
card
in
the
server,
complete
the
following
steps:
1.
Read
the
safety
information
that
begins
on
page
v
and
“Installation
guidelines”
on
page
26.
Attention:
Static
electricity
that
is
released
to
internal
server
components
when
the
server
is
powered-on
might
cause
the
server
to
halt,
which
might
result
in
the
loss
of
data.
To
avoid
this
potential
problem,
always
use
an
electrostatic-discharge
wrist
strap
or
other
grounding
system
when
you
work
inside
the
server
with
the
power
on.
2.
Remove
the
server
cover
(see
“Removing
the
cover
and
bezel”
on
page
28).
3.
Make
sure
the
memory
hot-swap
enabled
LED
is
lit.
If
the
LED
is
not
lit,
enable
memory
mirroring
(see
“Active
Memory”
on
page
38).
4.
Prepare
the
new
memory
card:
a.
Touch
the
static-protective
package
that
contains
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-protective
surface,
with
the
DIMM
connectors
facing
up.
c.
Install
memory
DIMMs
in
the
memory
card
(see
“Installing
DIMMs”
on
page
41).
Attention:
When
you
move
the
memory
card,
do
not
allow
it
to
touch
any
components
or
structures
inside
the
server.
5.
Remove
the
memory
card
from
the
server:
a.
Slide
the
orange
release
latch
to
the
unlocked
position.
Attention:
To
avoid
loss
of
data,
make
sure
that
the
memory
port
power
LED
is
off
before
you
remove
the
memory
card.
b.
Make
sure
that
the
retention
levers
on
the
edge
of
the
memory
card
are
fully
open.
c.
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
and
the
guides
on
the
chassis.
40
IBM
System
x3850
M2
and
System
x3950
M2
Type
7141:
User’s
Guide