7. Route the power cord through the handle and cable tie if any, so that it does
not accidentally become unplugged.
8. Connect the other ends of the dc power cable to the dc power source. Cut the
wires to the correct length, but do not cut them shorter than 150 mm (6 inch).
If the power source requires ring terminals, you must use a crimping tool to
install the ring terminals to the power cord wires. The ring terminals must be
UL approved and must accommodate the wires that are described in note 266.
The minimum nominal thread diameter of a pillar or stud type of terminal must
be 4 mm; for a screw type of terminal the diameter must be 5.0 mm.
9. Turn on the circuit breaker for the dc power source to which the new power
supply is connected.
10. Make sure that the green power LEDs on the power supply are lit, indicating
that the power supply is operating correctly.
11. If you are replacing a power supply with one of a different wattage in the
server, apply the new power information label provided over the existing power
information label on the server. Power supplies in the server must be with the
same power rating or wattage to ensure that the server will operate correctly.
12. If you are adding a power supply to the server, attach the redundant power
information label that comes with this option on the server cover near the
power supplies.
Removing an optional remotely installed ServeRAID adapter battery
To remove an optional ServeRAID adapter battery, complete the following steps:
1. Read the safety information that begins on page vii and “Installation guidelines”
on page 191.
2. Turn off the server and peripheral devices and disconnect all power cords and
external cables.
3. Remove the cover (see “Removing the cover” on page 205).
4. Remove the optional battery holder (see “Removing an optional ServeRAID
SAS controller battery holder” on page 208).
5. If you are removing the batter from the battery holder, press the release tab.
6. Disconnect the battery power cable from the battery.
7. Lift the battery up to remove the battery from the battery holder. The following
illustration shows the battery in the battery holder.
Chapter 5. Removing and replacing server components 271
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