IBM 7979B1U User Manual - Page 53

Installing, baffle

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Installing the DIMM air baffle The following illustration shows how to install the DIMM air baffle. Riser card assembly DIMM air baffle Finger hole Release ring To install the DIMM air baffle, complete the following steps: 1. Read the safety information that begins on page vii and "Installation guidelines" on page 28. 2. Make sure that the server and peripheral devices are turned off (see "Turning off the server" on page 13) and that all power cords and external cables are disconnected. Attention: In a dc power environment, only trained service personnel other than IBM service technicians are authorized to connect or disconnect power to the dc power supply. See the documentation that comes with each dc power supply. 3. Remove the cover (see "Removing the cover" on page 31). 4. Align the tabs on the sides of the air baffle with the slots on the power-supply cage. 5. Place your fingers into the handle and opening on the top of the DIMM air baffle. 6. Press the handle toward the opening and lower the air baffle so that the lip on the right side of the baffle covers the lip on the side of the power-supply cage. 7. Press the DIMM air baffle into place. Attention: For proper cooling and airflow, replace the air baffle before you turn on the server. Operating the server with an air baffle removed might damage server components. Chapter 2. Installing optional devices 37

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Installing
the
DIMM
air
baffle
The
following
illustration
shows
how
to
install
the
DIMM
air
baffle.
DIMM air baffle
Finger hole
Release ring
Riser card
assembly
To
install
the
DIMM
air
baffle,
complete
the
following
steps:
1.
Read
the
safety
information
that
begins
on
page
vii
and
“Installation
guidelines”
on
page
28.
2.
Make
sure
that
the
server
and
peripheral
devices
are
turned
off
(see
“Turning
off
the
server”
on
page
13)
and
that
all
power
cords
and
external
cables
are
disconnected.
Attention:
In
a
dc
power
environment,
only
trained
service
personnel
other
than
IBM
service
technicians
are
authorized
to
connect
or
disconnect
power
to
the
dc
power
supply.
See
the
documentation
that
comes
with
each
dc
power
supply.
3.
Remove
the
cover
(see
“Removing
the
cover”
on
page
31).
4.
Align
the
tabs
on
the
sides
of
the
air
baffle
with
the
slots
on
the
power-supply
cage.
5.
Place
your
fingers
into
the
handle
and
opening
on
the
top
of
the
DIMM
air
baffle.
6.
Press
the
handle
toward
the
opening
and
lower
the
air
baffle
so
that
the
lip
on
the
right
side
of
the
baffle
covers
the
lip
on
the
side
of
the
power-supply
cage.
7.
Press
the
DIMM
air
baffle
into
place.
Attention:
For
proper
cooling
and
airflow,
replace
the
air
baffle
before
you
turn
on
the
server.
Operating
the
server
with
an
air
baffle
removed
might
damage
server
components.
Chapter
2.
Installing
optional
devices
37