IBM 8863 User Manual - Page 24

Installing, memory, module

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If a problem with a DIMM is detected, light path diagnostics will light the system-error LED on the front of the server, indicating that there is a problem and will guide you to the defective DIMM. When this occurs, first identify the defective DIMM; then, remove and replace the DIMM. The following illustration shows the LEDs on the memory card: Memory Port Power Error Memory Hot-Swap Enabled Memory Hot-Swap Enabled LED: When this LED is lit, it indicates that hot-swap memory is enabled. Error LED: When this LED is lit, it indicates that a DIMM or memory card has failed. Memory Port Power LED: When this LED is off, it indicates that power is removed from the port and that you can remove the memory card to replace a failed memory card or DIMM. Installing a memory module 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. Complete the following steps to install additional memory modules: 1. Read the safety information beginning on page v and "Installation guidelines" on page 7. 2. If you are not hot-swapping a DIMM, turn off the server and peripheral devices, and disconnect the power cords and all external cables necessary to replace the device. Attention: When moving the memory card, do not allow it to impact any components or structures inside the server. If you are hot swapping a DIMM, make sure that the Memory Hot-Swap Enabled LED is lit. 12 IBM xSeries 366 Type 8863: Installation Guide

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If
a
problem
with
a
DIMM
is
detected,
light
path
diagnostics
will
light
the
system-error
LED
on
the
front
of
the
server,
indicating
that
there
is
a
problem
and
will
guide
you
to
the
defective
DIMM.
When
this
occurs,
first
identify
the
defective
DIMM;
then,
remove
and
replace
the
DIMM.
The
following
illustration
shows
the
LEDs
on
the
memory
card:
Memory Hot-Swap Enabled
Memory Port Power
Error
Memory
Hot-Swap
Enabled
LED:
When
this
LED
is
lit,
it
indicates
that
hot-swap
memory
is
enabled.
Error
LED:
When
this
LED
is
lit,
it
indicates
that
a
DIMM
or
memory
card
has
failed.
Memory
Port
Power
LED:
When
this
LED
is
off,
it
indicates
that
power
is
removed
from
the
port
and
that
you
can
remove
the
memory
card
to
replace
a
failed
memory
card
or
DIMM.
Installing
a
memory
module
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.
Complete
the
following
steps
to
install
additional
memory
modules:
1.
Read
the
safety
information
beginning
on
page
v
and
“Installation
guidelines”
on
page
7.
2.
If
you
are
not
hot-swapping
a
DIMM,
turn
off
the
server
and
peripheral
devices,
and
disconnect
the
power
cords
and
all
external
cables
necessary
to
replace
the
device.
Attention:
When
moving
the
memory
card,
do
not
allow
it
to
impact
any
components
or
structures
inside
the
server.
If
you
are
hot
swapping
a
DIMM,
make
sure
that
the
Memory
Hot-Swap
Enabled
LED
is
lit.
12
IBM
xSeries
366
Type
8863:
Installation
Guide