NOTE: When installing, hot-swapping, or hot-adding a new PSU, wait for 15 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.
Figure 55. Installing a DC PSU
1.
release latch
2. power supply status indicator
3. PSU
4. power connector
5. PSU handle
Next steps
• Follow the procedure listed in the After working inside your system section.
Related Links
Safety instructions
Before working inside your system
After working inside your system
System battery
The system board battery is used for low-level system functions like powering the real-time clock and
storing the computer’s BIOS settings.
Replacing the system battery
Prerequisites
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 certified 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.
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