Perform the following procedure if you need to replace the main board CMOS battery on a
2145-SV1 control enclosure.
Before you begin
DANGER
Multiple power cords. The product might be equipped with multiple AC
power cords or multiple DC power cables. To remove all hazardous voltages, disconnect all power
cords and power cables. (L003)
About this task
This service action assumes that the following tasks were completed:
The node is turned off.
The power cables are disconnected.
All LED indicators, such as the node status LED, are off.
Follow any special handling and installation instructions that come with the replacement
battery.
Locate the battery on the main board ( 2 ), as shown in Figure 1.
Figure 1. Location of the 2145-SV1
CMOS battery holder
1 SATA cable connector 1
2 CMOS battery in the battery holder on the main board
3 SATA cable connector 2
Insert the new battery:
Pull the battery holder catch 4 in the direction (a) shown in
Figure 2.
Insert the battery into the holder 5 in the direction (b) shown in
Figure 2. The + mark on the battery
must face towards the front of the node.
Figure 2. Replacing the 2145-SV1
CMOS battery
1 CMOS battery in the battery holder on the main board
2 SATA cable connector 1
3 SATA cable connector 2
4 Battery catch
5 Battery holder
Release the battery holder catch 4 .
Reconnect the SATA cables to the appropriate SATA cable connectors on the main board,
1 and 3 , as shown in Figure 1.
For example, SATA cable 1 must be connected to SATA cable connector 1 on the SATA drive
backplane. SATA cable connector 1 is closest to the battery backplane. For details, see Replacing the SATA drive backplane and cables: 2145-SV1.