Dell PowerEdge R940 EMC Installation and Service Manual - Page 151

NVDIMM battery cable routing, System battery, Replacing system battery

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NVDIMM battery cable routing Figure 100. Cable routing - NVDIMM battery cables 1. NVDIMM battery 2. battery cable connecting J_NVDIMM_BATT connector on the system board 3. batter power cable connecting BATT_PWR connector on the system board NOTE: For information about system board connectors, see System board jumpers and connectors on page 165. System battery Replacing system battery Prerequisites NOTE: 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 is shipped with you system. 1. Follow the safety guidelines listed in Safety instructions on page 65. 2. Follow the procedure listed in Before working inside your system on page 66. 3. Remove the air shroud. 4. If applicable, disconnect the power or data cables from expansion card(s). 5. If installed, remove the expansion card risers. 6. If installed, remove the PEM. Steps 1. Locate the battery socket. For more information on locating the system battery, 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. Installing and removing system components 151

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NVDIMM battery cable routing
Figure 100. Cable routing – NVDIMM battery cables
1.
NVDIMM battery
2.
battery cable connecting J_NVDIMM_BATT connector on the system board
3.
batter power cable connecting BATT_PWR connector on the system board
NOTE:
For information about system board connectors, see
System board jumpers and connectors
on page 165.
System battery
Replacing system battery
Prerequisites
NOTE:
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 is shipped
with you system.
1.
Follow the safety guidelines listed in
Safety instructions
on page 65.
2.
Follow the procedure listed in
Before working inside your system
on page 66.
3.
Remove the air shroud
.
4.
If applicable, disconnect the power or data cables from expansion card(s).
5.
If installed,
remove the expansion card risers
.
6.
If installed,
remove the PEM
.
Steps
1.
Locate the battery socket. For more information on locating the system battery, 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.
Installing and removing system components
151