Figure 91. Installing the rear hard drive cage
Next steps
1
Reconnect all the disconnected cables to the rear hard drive backplane.
2
Install all the hard drives.
3
Follow the procedure listed in
After working inside your system
.
Related links
System battery
The system battery is used for low-level system functions such as powering the real-time and date settings of the system.
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.
1
Follow the safety guidelines listed in
2
Follow the procedure listed in
Before working inside your system
.
3
If applicable, disconnect the power or data cables from expansion card(s) in the expansion card riser 1A.
4
Remove the expansion card riser 1A.
Steps
1
Locate the battery socket. For more information, see the System board jumpers and connectors section.
CAUTION:
To avoid damage to the battery connector, you must firmly 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:
136
Dell EMC PowerEdge R640 Installation and Service Manual
Installing and removing system components
