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
Figure 87. Installing the system battery
Next steps
1. Install the PEM.
2. Follow the procedure listed in the After working inside your sled section.
3. While booting, press F2 to enter the System Setup and ensure that the battery is operating properly.
4. Enter the correct time and date in the System Setup Time and Date fields.
5. Exit the System Setup.
System board
A system board (also known as the motherboard) is the main printed circuit board in the system with different connectors
used to connect different components or peripherals of the system. A system board provides the electrical connections to the
components in the system to communicate.
Removing the system board
Prerequisites
CAUTION:
If you are using the Trusted Platform Module (TPM) with an encryption key, you may be prompted to
create a recovery key during program or System Setup. Be sure to create and safely store this recovery key. If
you replace this system board, you must supply the recovery key when you restart your sled or program before
you can access the encrypted data on your drives.
CAUTION: If either the system board or iDRAC card fails, it is required to replace the system board and iDRAC
card simultaneously.
NOTE: It is required to reactivate the licenses after the system board replacement.
CAUTION: You may find the CMOS battery loss or CMOS checksum error displayed during the first instance of
powering on the system after the processor or system board replacement which is expected. To fix this, simply
go to setup option to configure the system settings.
CAUTION: Do not attempt to remove the TPM plug-in module from the system board. Once the TPM plug-in
module is installed, it is cryptographically bound to that specific system board. Any attempt to remove an
installed TPM plug-in module breaks the cryptographic binding, and it cannot be re-installed or installed on
another system board.
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 following:
a. Air shroud from the PEM
b. PEM
c. Air shroud from the system board
d. Heat sink and processor module
e. Processor blanks, if installed.
CAUTION:
To prevent damage to the processor socket when replacing a faulty system board, ensure that
you cover the processor socket with the processor dust cover.
f. IDSDM module or M.2 BOSS module
92
Installing and removing sled components