IBM QS21 Service Guide - Page 55

Replacing, fillers

Page 55 highlights

1 Slot at JDIM11 Slot at JDIM10 Slot at JDIM01 Slot at JDIM00 Figure 13. DIMM slot location There are four DIMM slots, two for each Cell/B.E. companion chip. If this is the first pair of DIMMs you are installing, use slots 00 and 11. Slots 00 and 11 are the two outer slots as shown in Figure 13. For a second pair of DIMMs, use the remaining slots 01 and 10. 5. Remove the DIMM fillers from the slots where you want to insert the DIMMs. Retain the DIMM fillers. You need them if you remove any DIMMs from the blade server as they are an important part of the blade server cooling system. 6. Place the DIMM in the slot, contact side down. Check the orientation of the module. The central locating pin in the slot should match the corresponding cut-out on the module. 7. Carefully press the module into place until the retaining clips snap into position. Make sure that the clips are locked properly. DIMM Retaining clip Figure 14. DIMM retaining clips 8. Repeat steps 6 and 7 until you have installed all the optional DIMMs. 9. Ensure that all unused DIMM slots are fitted with DIMM fillers. 10. If you do not want to install any other options, replace the cover and insert the BladeCenter QS21 into the BladeCenter unit. Replacing DIMM fillers For the BladeCenter QS21 cooling system to work properly there must be no empty DIMM slots. Unused slots must be fitted with DIMM fillers. Replace faulty DIMM fillers and, if you remove memory modules, fit empty slots with DIMM fillers. To install or replace DIMM fillers, complete the following steps: 1. Shut down the BladeCenter QS21. Chapter 4. Installing and removing replaceable units 37

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There
are
four
DIMM
slots,
two
for
each
Cell/B.E.
companion
chip.
If
this
is
the
first
pair
of
DIMMs
you
are
installing,
use
slots
00
and
11.
Slots
00
and
11
are
the
two
outer
slots
as
shown
in
Figure
13.
For
a
second
pair
of
DIMMs,
use
the
remaining
slots
01
and
10.
5.
Remove
the
DIMM
fillers
from
the
slots
where
you
want
to
insert
the
DIMMs.
Retain
the
DIMM
fillers.
You
need
them
if
you
remove
any
DIMMs
from
the
blade
server
as
they
are
an
important
part
of
the
blade
server
cooling
system.
6.
Place
the
DIMM
in
the
slot,
contact
side
down.
Check
the
orientation
of
the
module.
The
central
locating
pin
in
the
slot
should
match
the
corresponding
cut-out
on
the
module.
7.
Carefully
press
the
module
into
place
until
the
retaining
clips
snap
into
position.
Make
sure
that
the
clips
are
locked
properly.
8.
Repeat
steps
6
and
7
until
you
have
installed
all
the
optional
DIMMs.
9.
Ensure
that
all
unused
DIMM
slots
are
fitted
with
DIMM
fillers.
10.
If
you
do
not
want
to
install
any
other
options,
replace
the
cover
and
insert
the
BladeCenter
QS21
into
the
BladeCenter
unit.
Replacing
DIMM
fillers
For
the
BladeCenter
QS21
cooling
system
to
work
properly
there
must
be
no
empty
DIMM
slots.
Unused
slots
must
be
fitted
with
DIMM
fillers.
Replace
faulty
DIMM
fillers
and,
if
you
remove
memory
modules,
fit
empty
slots
with
DIMM
fillers.
To
install
or
replace
DIMM
fillers,
complete
the
following
steps:
1.
Shut
down
the
BladeCenter
QS21.
1
Slot at JDIM00
Slot at JDIM01
Slot at JDIM10
Slot at JDIM11
Figure
13.
DIMM
slot
location
DIMM
Retaining clip
Figure
14.
DIMM
retaining
clips
Chapter
4.
Installing
and
removing
replaceable
units
37