Lenovo ThinkServer RD120 User Guide - Page 81

connectors

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Attention: In a dc power environment, only trained service personnel other than Lenovo service technicians are authorized to connect or disconnect power to the dc power supply and to install and remove a dc power supply. See the documentation that comes with each dc power supply for installation instructions. 1. Read the safety information that begins on page v and "Installation guidelines" on page 29. 2. Remove the power-supply filler panel from the empty power-supply bay by pinching the side clip and pulling the power-supply filler panel from the bay. Save the power-supply filler panel in case you remove the power supply at a later time. Important: During normal operation, each power-supply bay must contain either a power supply or power-supply filler panel for proper cooling. 3. Slide the ac 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 (see "Installing a fan" on page 68). 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. See the fan numbers on the microprocessor air baffle, or see the illustration in "Removing a fan" on page 69. 5. Connect the power cord for the new ac power supply to the power-cord connector on the power supply. The following illustration shows the ac power-supply connectors on the back of the server. 1 Power cord connectors 2 Power supply 2 3 Power supply 1 6. Route the power cord through the power-supply handle and through any cable clamps on the rear of the server to prevent the power cord from being accidentally pulled out when you slide the server in and out of the rack. 7. Connect the power cord to a properly grounded electrical outlet. 8. 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. If you have other optional devices to install or remove, do so now. Otherwise, go to "Completing the installation" on page 74. Chapter 2. Installing optional devices 67

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Attention:
In
a
dc
power
environment,
only
trained
service
personnel
other
than
Lenovo
service
technicians
are
authorized
to
connect
or
disconnect
power
to
the
dc
power
supply
and
to
install
and
remove
a
dc
power
supply.
See
the
documentation
that
comes
with
each
dc
power
supply
for
installation
instructions.
1.
Read
the
safety
information
that
begins
on
page
v
and
“Installation
guidelines”
on
page
29.
2.
Remove
the
power-supply
filler
panel
from
the
empty
power-supply
bay
by
pinching
the
side
clip
and
pulling
the
power-supply
filler
panel
from
the
bay.
Save
the
power-supply
filler
panel
in
case
you
remove
the
power
supply
at
a
later
time.
Important:
During
normal
operation,
each
power-supply
bay
must
contain
either
a
power
supply
or
power-supply
filler
panel
for
proper
cooling.
3.
Slide
the
ac
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
(see
“Installing
a
fan”
on
page
68).
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.
See
the
fan
numbers
on
the
microprocessor
air
baffle,
or
see
the
illustration
in
“Removing
a
fan”
on
page
69.
5.
Connect
the
power
cord
for
the
new
ac
power
supply
to
the
power-cord
connector
on
the
power
supply.
The
following
illustration
shows
the
ac
power-supply
connectors
on
the
back
of
the
server.
±1²
Power
cord
connectors
±2²
Power
supply
2
±3²
Power
supply
1
6.
Route
the
power
cord
through
the
power-supply
handle
and
through
any
cable
clamps
on
the
rear
of
the
server
to
prevent
the
power
cord
from
being
accidentally
pulled
out
when
you
slide
the
server
in
and
out
of
the
rack.
7.
Connect
the
power
cord
to
a
properly
grounded
electrical
outlet.
8.
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.
If
you
have
other
optional
devices
to
install
or
remove,
do
so
now.
Otherwise,
go
to
“Completing
the
installation”
on
page
74.
Chapter
2.
Installing
optional
devices
67