Owners Manual
Table Of Contents
- Dell EMC PowerEdge MX840c Installation and Service Manual
- About this document
- Dell EMC PowerEdge MX840c overview
- Initial system setup and configuration
- Installing and removing sled components
- Safety instructions
- Before working inside your sled
- After working inside your sled
- Recommended tools
- PowerEdge MX840c sled
- Sled cover
- Air shroud
- Processor expansion module
- Drives
- Drive backplane
- Cable routing
- Drive cage
- Battery backup unit
- Control panel
- System memory
- Processors and heat sinks
- iDRAC card
- PERC cards
- Optional Internal dual SD module
- M.2 BOSS module
- Mezzanine card
- Optional internal USB memory key
- System battery
- System board
- Trusted Platform Module
- Jumpers and connectors
- System diagnostics and indicator codes
- Getting help
- Documentation resources
Steps
1. Locate the USB port or USB memory key on the system board.
To locate the USB port, see the System board jumpers and connectors section.
2. If installed, remove the USB memory key from the USB port.
3. Place the replacement USB memory key into the USB port.
Next steps
1. Install the PEM.
2. While booting, press F2 to enter System Setup and verify that the system detects the USB memory key.
3. Follow the procedure listed in the After working inside your sled section.
System battery
The system battery is used to power the real-time clock and storing the BIOS settings of the sled.
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 the Safety instructions section.
2. Follow the procedure listed in the Before working inside your sled section.
3. Remove the PEM.
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.
Figure 86. Removing the system battery
3. To install a new system battery, hold the battery with the positive side facing up and slide it under the securing tabs.
4. Press the battery into the connector until it snaps into place.
Installing and removing sled components
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