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
CAUTION: Handle each memory module only by the card edges, ensuring not to touch the middle of the
memory module or metallic contacts.
2. Push the ejectors outward on both ends of the memory module socket to release the memory module from the socket.
3. Lift and remove the memory module from the sled or PEM.
Figure 53. Removing a memory module from the system board or PEM
Next steps
1. Install a memory module.
2. If you are removing the memory module permanently, install a memory module blank. The procedure to install a memory
module blank is similar to that of the memory module.
NOTE:
For the minimum sled configuration, two processors are required on the system board. Install the processor/DIMM
blank on the processor 3/4 sockets on the PEM board.
Installing a memory module
Prerequisites
1. Follow the safety guidelines listed in the Safety instructions section.
2. Follow the procedure listed in the Before working inside your sled section.
CAUTION:
To ensure proper sled cooling, memory module blanks must be installed in any memory socket that is
not occupied. Remove memory module blanks only if you intend to install memory modules in those sockets.
NOTE: You must follow the thermal restriction while using DIMM blank. For information about thermal restriction, see the
PowerEdge MX840c Technical Specs at www.dell.com/poweredgemanuals
Steps
1. Locate the appropriate memory module socket.
CAUTION:
Handle each memory module only by the card edges, ensuring not to touch the middle of the
memory module or metallic contacts.
CAUTION: To prevent damage to the memory module or the memory module socket during installation, do
not bend or flex the memory module. You must insert both ends of the memory module simultaneously.
2. Open the ejectors on the memory module socket outward to allow the memory module to be inserted into the socket.
3. Align the edge connector of the memory module with the alignment key of the memory module socket, and insert the
memory module in the socket.
CAUTION:
Do not apply pressure at the center of the memory module; apply pressure at both ends of the
memory module evenly.
NOTE: The memory module socket has an alignment key that enables you to install the memory module in the socket in
only one orientation.
Installing and removing sled components 63