IBM x3655 Service Guide - Page 80

Removing, memory, module, Installing

Page 80 highlights

Removing a memory module To remove a dual inline memory module (DIMM), complete the following steps. DIMM Retaining clip 1. Read the safety information that begins on page vii and "Installation guidelines" on page 35. 2. Turn off the server and all attached devices. 3. Disconnect all external cables and power cords. 4. Remove the cover (see "Removing the cover" on page 39). 5. Remove the riser-card assembly (see ″Removing the riser-card assembly″ on page 120). 6. Remove the air baffle (see "Removing the air baffle" on page 41). Attention: To avoid breaking the retaining clips or damaging the DIMM connectors, open and close the clips gently. 7. Open the retaining clip on each end of the DIMM connector and lift the DIMM from the connector. 8. Replace the DIMM or remove the second DIMM of the pair. 9. If you are instructed to return the DIMM, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you. Installing a memory module For information about the types of dual inline memory modules (DIMMs) that the server supports and other information that you must consider when installing DIMMs, see the User's Guide on the IBM System x Documentation CD. v The server comes with a minimum of two 512 MB DIMMs, installed in slots 1 and 2. When you install additional DIMMs, you must install two identical DIMMS at a time, in the order shown in the following table, to maintain performance: Table 3. DIMM installation sequence DIMMs 2 1 microprocessor installed DIMM connectors 1 and 2 2 microprocessors installed Not applicable 4 DIMM connectors 1 through 4 DIMM connectors 1 and 2 and 9 and 10 6 DIMM connectors 1 through 6 DIMM connectors 1 through 4 and 9 and 10 62 IBM System x3655 Type 7985: Problem Determination and Service Guide

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Removing
a
memory
module
To
remove
a
dual
inline
memory
module
(DIMM),
complete
the
following
steps.
DIMM
Retaining
clip
1.
Read
the
safety
information
that
begins
on
page
vii
and
“Installation
guidelines”
on
page
35.
2.
Turn
off
the
server
and
all
attached
devices.
3.
Disconnect
all
external
cables
and
power
cords.
4.
Remove
the
cover
(see
“Removing
the
cover”
on
page
39).
5.
Remove
the
riser-card
assembly
(see
Removing
the
riser-card
assembly
on
page
120).
6.
Remove
the
air
baffle
(see
“Removing
the
air
baffle”
on
page
41).
Attention:
To
avoid
breaking
the
retaining
clips
or
damaging
the
DIMM
connectors,
open
and
close
the
clips
gently.
7.
Open
the
retaining
clip
on
each
end
of
the
DIMM
connector
and
lift
the
DIMM
from
the
connector.
8.
Replace
the
DIMM
or
remove
the
second
DIMM
of
the
pair.
9.
If
you
are
instructed
to
return
the
DIMM,
follow
all
packaging
instructions,
and
use
any
packaging
materials
for
shipping
that
are
supplied
to
you.
Installing
a
memory
module
For
information
about
the
types
of
dual
inline
memory
modules
(DIMMs)
that
the
server
supports
and
other
information
that
you
must
consider
when
installing
DIMMs,
see
the
User’s
Guide
on
the
IBM
System
x
Documentation
CD.
v
The
server
comes
with
a
minimum
of
two
512
MB
DIMMs,
installed
in
slots
1
and
2.
When
you
install
additional
DIMMs,
you
must
install
two
identical
DIMMS
at
a
time,
in
the
order
shown
in
the
following
table,
to
maintain
performance:
Table
3.
DIMM
installation
sequence
DIMMs
1
microprocessor
installed
2
microprocessors
installed
2
DIMM
connectors
1
and
2
Not
applicable
4
DIMM
connectors
1
through
4
DIMM
connectors
1
and
2
and
9
and
10
6
DIMM
connectors
1
through
6
DIMM
connectors
1
through
4
and
9
and
10
62
IBM
System
x3655
Type
7985:
Problem
Determination
and
Service
Guide