Figure 81. Installing the PSU blank
1. PSU blank 2. PSU bay
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
1. Follow the safety guidelines listed in safety instructions section.
2. Follow the procedure listed in the Before working in your system section.
3. Remove the expansion card riser.
4. Keep the plastic scribe ready.
WARNING: 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.
CAUTION: Many repairs may only be done by a certied service technician. You should only perform troubleshooting and
simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support
team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety
instructions that are shipped with your product.
NOTE: This is a Field Replaceable Unit (FRU). Removal and installation procedures must be performed only by Dell
certied service technicians.
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. Use a plastic scribe to pry out the system battery as shown in the following illustration:
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