3 Tighten the screw to secure the PSU to the chassis.
4 Connect all the power cables to the system board, hard drives, and optical drive.
Figure 69. Installing a cabled PSU
1
screw 2 PSU
3 P2 cable connector 4 P1 cable connector
5 stando 6 P3 cable connector
Next step
1 Follow the procedure listed in the After working inside your system section.
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.
114 Installing and removing system components
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