Dell PowerEdge R940 EMC Installation and Service Manual - Page 148

NVDIMM-N battery, Removing the NVDIMM-N battery

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Kit contents • Dell part number 6RYJ9 terminal block or equivalent (1) • #6-32 nut equipped with lock washer (1) Required tools Wire-stripper pliers capable of removing insulation from size 10 AWG solid or stranded, insulated copper wire. NOTE: Use alpha wire part number 3080 or equivalent (65/30 stranding). Required wires • One UL 10 AWG, 2 m maximum (stranded) black wire [-(48-60) V DC]. • One UL 10 AWG, 2 m maximum (stranded) red wire (V DC return). • One UL 10 AWG, 2 m maximum, green with a yellow stripe, stranded wire (safety ground). NVDIMM-N battery Removing the NVDIMM-N battery Prerequisites 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. CAUTION: NVDIMM-N battery is not hot swappable. To prevent data loss and potential damage to your system, ensure that your system, LEDs on system, LEDs on NVDIMM-N and LEDs on NVDIMM-N battery are turned off before removing the NVDIMM-N battery. CAUTION: To avoid damage to the battery connector, you must firmly support the connector while installing or removing a battery. Steps 1. Disconnect the cables from the NVDIMM-N battery. 2. Using Phillips #2 screwdriver, loosen the retention screw that secures the battery to the system. 3. Holding the edges, slide the battery toward the back of the system until the battery disengages from the slot on the system. 4. Lift the battery away from the system. 148 Installing and removing system components

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Kit contents
•
Dell part number 6RYJ9 terminal block or equivalent (1)
•
#6-32 nut equipped with lock washer (1)
Required tools
Wire-stripper pliers capable of removing insulation from size 10 AWG solid or stranded, insulated copper wire.
NOTE:
Use alpha wire part number 3080 or equivalent (65/30 stranding).
Required wires
•
One UL 10 AWG, 2 m maximum (stranded) black wire [–(48–60) V DC].
•
One UL 10 AWG, 2 m maximum (stranded) red wire (V DC return).
•
One UL 10 AWG, 2 m maximum, green with a yellow stripe, stranded wire (safety ground).
NVDIMM-N battery
Removing the NVDIMM-N battery
Prerequisites
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.
CAUTION:
NVDIMM-N battery is not hot swappable. To prevent data loss and potential damage to your system,
ensure that your system, LEDs on system, LEDs on NVDIMM-N and LEDs on NVDIMM-N battery are turned off
before removing the NVDIMM-N battery.
CAUTION:
To avoid damage to the battery connector, you must firmly support the connector while installing or
removing a battery.
Steps
1.
Disconnect the cables from the NVDIMM-N battery.
2.
Using Phillips #2 screwdriver, loosen the retention screw that secures the battery to the system.
3.
Holding the edges, slide the battery toward the back of the system until the battery disengages from the slot on the system.
4.
Lift the battery away from the system.
148
Installing and removing system components