IBM 88643RU Service Guide - Page 62

Hot-adding, memory, modules

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DIMM Retaining clip 8. Insert the DIMM into the connector by aligning the edges of the DIMM with the slots at the ends of the DIMM connector. 9. Firmly press one end of the DIMM into the connector; then, press the other end into the connector. The retaining clips snap into the locked position when the DIMM is seated in the connector. If there is a gap between the DIMM and the retaining clips, the DIMM has not been correctly inserted; open the retaining clips, remove the DIMM, and then reinsert it. 10. Repeat steps 5 through 9 to replace any remaining DIMMs on the memory card. 11. Replace the memory card: a. Insert the memory card into the memory card connector. b. Press the memory card into the connector and close the small retention lever. c. Wait two seconds and close the large retention lever. Hot-adding memory modules: To hot-add memory modules and memory cards, complete the following steps: 1. Read the safety information that begins on page vii, and "Handling static-sensitive devices" on page 31. Attention: Static electricity that is released to internal server components when the server is powered-on might cause the server to halt, which could result in the loss of data. To avoid this potential problem, always use an electrostatic-discharge wrist strap or other grounding system when working inside the server with the power on. 2. Remove the top cover "Removing the cover and bezel" on page 31. Attention: When moving the memory card, do not allow it to impact any components or structures inside the server. 3. Place a memory card on a flat, static protected surface with the DIMM connectors facing up. Attention: To avoid breaking the DIMM retaining clips or damaging the DIMM connectors, open and close the clips gently. 4. Open the retaining clip on each end of the DIMM connector. 46 IBM System x3850 Type 8864: Problem Determination and Service Guide

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DIMM
Retaining
clip
8.
Insert
the
DIMM
into
the
connector
by
aligning
the
edges
of
the
DIMM
with
the
slots
at
the
ends
of
the
DIMM
connector.
9.
Firmly
press
one
end
of
the
DIMM
into
the
connector;
then,
press
the
other
end
into
the
connector.
The
retaining
clips
snap
into
the
locked
position
when
the
DIMM
is
seated
in
the
connector.
If
there
is
a
gap
between
the
DIMM
and
the
retaining
clips,
the
DIMM
has
not
been
correctly
inserted;
open
the
retaining
clips,
remove
the
DIMM,
and
then
reinsert
it.
10.
Repeat
steps
5
through
9
to
replace
any
remaining
DIMMs
on
the
memory
card.
11.
Replace
the
memory
card:
a.
Insert
the
memory
card
into
the
memory
card
connector.
b.
Press
the
memory
card
into
the
connector
and
close
the
small
retention
lever.
c.
Wait
two
seconds
and
close
the
large
retention
lever.
Hot-adding
memory
modules:
To
hot-add
memory
modules
and
memory
cards,
complete
the
following
steps:
1.
Read
the
safety
information
that
begins
on
page
vii,
and
“Handling
static-sensitive
devices”
on
page
31.
Attention:
Static
electricity
that
is
released
to
internal
server
components
when
the
server
is
powered-on
might
cause
the
server
to
halt,
which
could
result
in
the
loss
of
data.
To
avoid
this
potential
problem,
always
use
an
electrostatic-discharge
wrist
strap
or
other
grounding
system
when
working
inside
the
server
with
the
power
on.
2.
Remove
the
top
cover
“Removing
the
cover
and
bezel”
on
page
31.
Attention:
When
moving
the
memory
card,
do
not
allow
it
to
impact
any
components
or
structures
inside
the
server.
3.
Place
a
memory
card
on
a
flat,
static
protected
surface
with
the
DIMM
connectors
facing
up.
Attention:
To
avoid
breaking
the
DIMM
retaining
clips
or
damaging
the
DIMM
connectors,
open
and
close
the
clips
gently.
4.
Open
the
retaining
clip
on
each
end
of
the
DIMM
connector.
46
IBM
System
x3850
Type
8864:
Problem
Determination
and
Service
Guide