IBM 79856au User Guide - Page 73

Installing

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To install a power supply, complete the following steps: 1. Read the safety information that begins on page v and "Installation guidelines" on page 23. 2. Remove the power-supply blank from the empty power-supply bay by pinching the side clip and pulling the power-supply blank from the bay. Save the power-supply blank in case you remove the power supply at a later time. Important: During normal operation, each power-supply bay must have either a power supply or power-supply blank installed for proper cooling. 3. Slide the power supply into the bay until the retention latch clicks into place. 4. Remove the server cover and install the five cooling fans that came with the power supply option (see "Installing a fan"). Important: When power supply 1 is installed, the five fans for power supply 1 occupy the rear row only (fans 3, 4, 8, 9, and 10); when both power supplies are installed, all 10 fans must be installed. 5. Install the cover (see "Installing the cover" on page 62). 6. Connect the power cord for the new power supply to the power-cord connector on the power supply. The following illustration shows the power-supply connectors on the back of the server. Power cord connectors Power supply 1 Power supply 2 7. Route the power cord through any cable clamps on the rear of the server, to prevent the power cord from being accidentally pulled out when sliding the server in and out of the rack. 8. Connect the power cord to a properly grounded electrical outlet. 9. Make sure that the dc power LED and ac power LED on the power supply are lit, indicating that the power supply is operating correctly. Installing a fan For proper cooling, the server requires five fans installed for each hot-swap power supply installed. The server comes with five replaceable fans. If you install a second hot-swap power supply, you must install the set of five fans that come with the power-supply option. Important: Only the configurations shown in the following table are supported: Installed power supplies Power supply 1 Power supplies 1 and 2 Required fans Fans in locations 3, 4, 8, 9, and 10 All 10 fans Chapter 2. Installing optional devices 59

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To
install
a
power
supply,
complete
the
following
steps:
1.
Read
the
safety
information
that
begins
on
page
v
and
“Installation
guidelines”
on
page
23.
2.
Remove
the
power-supply
blank
from
the
empty
power-supply
bay
by
pinching
the
side
clip
and
pulling
the
power-supply
blank
from
the
bay.
Save
the
power-supply
blank
in
case
you
remove
the
power
supply
at
a
later
time.
Important:
During
normal
operation,
each
power-supply
bay
must
have
either
a
power
supply
or
power-supply
blank
installed
for
proper
cooling.
3.
Slide
the
power
supply
into
the
bay
until
the
retention
latch
clicks
into
place.
4.
Remove
the
server
cover
and
install
the
five
cooling
fans
that
came
with
the
power
supply
option
(see
“Installing
a
fan”).
Important:
When
power
supply
1
is
installed,
the
five
fans
for
power
supply
1
occupy
the
rear
row
only
(fans
3,
4,
8,
9,
and
10);
when
both
power
supplies
are
installed,
all
10
fans
must
be
installed.
5.
Install
the
cover
(see
“Installing
the
cover”
on
page
62).
6.
Connect
the
power
cord
for
the
new
power
supply
to
the
power-cord
connector
on
the
power
supply.
The
following
illustration
shows
the
power-supply
connectors
on
the
back
of
the
server.
Power cord
connectors
Power supply 1
Power supply 2
7.
Route
the
power
cord
through
any
cable
clamps
on
the
rear
of
the
server,
to
prevent
the
power
cord
from
being
accidentally
pulled
out
when
sliding
the
server
in
and
out
of
the
rack.
8.
Connect
the
power
cord
to
a
properly
grounded
electrical
outlet.
9.
Make
sure
that
the
dc
power
LED
and
ac
power
LED
on
the
power
supply
are
lit,
indicating
that
the
power
supply
is
operating
correctly.
Installing
a
fan
For
proper
cooling,
the
server
requires
five
fans
installed
for
each
hot-swap
power
supply
installed.
The
server
comes
with
five
replaceable
fans.
If
you
install
a
second
hot-swap
power
supply,
you
must
install
the
set
of
five
fans
that
come
with
the
power-supply
option.
Important:
Only
the
configurations
shown
in
the
following
table
are
supported:
Installed
power
supplies
Required
fans
Power
supply
1
Fans
in
locations
3,
4,
8,
9,
and
10
Power
supplies
1
and
2
All
10
fans
Chapter
2.
Installing
optional
devices
59