Owners Manual

Figure 34. Installing a redundant PSU

1 release latch 2 PSU cable connector

3 PSU 4 power connector

5 PSU handle

Next steps

1 If you have unlatched the cable management arm, relatch it. For information about the cable management arm, see the rack

documentation of the system.

2 Connect the power cable to the PSU and plug the cable into a power outlet.

CAUTION

: When connecting the power cable, secure the cable with the strap.

NOTE: When installing, hot-swapping, or hot-adding a new PSU in a system with two PSUs, allow several seconds for

the system to recognize the PSU and determine its status. The PSU status indicator turns green to signify that the

PSU is functioning properly.

System battery

The system battery is used to power the real-time clock and storing the BIOS settings of the system.

Replacing the system battery

Prerequisites

There is a danger of a new battery exploding if it is incorrectly installed. Replace the battery only with the same or equivalent

type recommended by the manufacturer. For more information, see the safety information that shipped with your system.

1 Follow the safety guidelines listed in the Safety instructions section.

2 Follow the procedure listed in the Before working inside your system section.

3 Remove the cooling shroud.

4 If installed, remove the expansion card riser.

Steps

1 Locate the battery socket. For more information, see the System board connectors section.

CAUTION

: To avoid damage to the battery connector, you must rmly support the connector while installing or

removing a battery.

2 Place your nger between the securing tabs at the negative side of the battery connector, and lift the battery out of the socket.

Installing and removing system components