IBM 7979B1U User Manual - Page 49

Installing, riser-card, assembly, Removing, microprocessor, baffle

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Installing the riser-card assembly To install the riser-card assembly, complete the following steps. Access holes Guide Release tabs Guide 1. Read the safety information that begins on page vii and "Installation guidelines" on page 28. 2. Make sure that the server and all peripheral devices are turned off and that the power cords and all 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. Reinstall any adapters and reconnect any internal cables that you removed in other procedures. 4. Carefully align the riser-card assembly with the release tab posts, the guides on the rear of the server, and the riser-card connector on the system board; then, press down on the assembly. Make sure that the riser-card assembly is fully seated in the riser-card connector on the system board. If you have other optional devices to install, do so now. Otherwise, go to "Completing the installation" on page 81. Removing the microprocessor air baffle When you work with some optional devices, you must first remove the microprocessor air baffle to access certain components or connectors on the system board. The following illustration shows how to remove the microprocessor air baffle. Chapter 2. Installing optional devices 33

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Installing
the
riser-card
assembly
To
install
the
riser-card
assembly,
complete
the
following
steps.
Access holes
Release tabs
Guide
Guide
1.
Read
the
safety
information
that
begins
on
page
vii
and
“Installation
guidelines”
on
page
28.
2.
Make
sure
that
the
server
and
all
peripheral
devices
are
turned
off
and
that
the
power
cords
and
all
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.
Reinstall
any
adapters
and
reconnect
any
internal
cables
that
you
removed
in
other
procedures.
4.
Carefully
align
the
riser-card
assembly
with
the
release
tab
posts,
the
guides
on
the
rear
of
the
server,
and
the
riser-card
connector
on
the
system
board;
then,
press
down
on
the
assembly.
Make
sure
that
the
riser-card
assembly
is
fully
seated
in
the
riser-card
connector
on
the
system
board.
If
you
have
other
optional
devices
to
install,
do
so
now.
Otherwise,
go
to
“Completing
the
installation”
on
page
81.
Removing
the
microprocessor
air
baffle
When
you
work
with
some
optional
devices,
you
must
first
remove
the
microprocessor
air
baffle
to
access
certain
components
or
connectors
on
the
system
board.
The
following
illustration
shows
how
to
remove
the
microprocessor
air
baffle.
Chapter
2.
Installing
optional
devices
33