Mode-Specific Guidelines; Removing A Memory Module - Dell E43S Series Installation And Service Manual

Mode-specific guidelines

Five memory channels are allocated to each processor. The allowable configurations depend on the memory mode selected. It is
recommended to set the memory to Memory Optimized mode.
NOTE: You can mix x4 and x8 DRAM based DIMMs to support RAS features. However, all guidelines for specific RAS features
must be followed. x4 DRAM based DIMMs retain Single Device Data Correction (SDDC) in memory optimized (independent
channel) mode. x8 DRAM based DIMMs need Advanced ECC mode to gain SDDC.

Removing a memory module

Prerequisites
1 Follow the safety guidelines listed in
2 Follow the procedure listed in
3 Remove the air shroud.
WARNING: Allow the memory modules to cool after you power off the system. Handle the memory modules by the card edges
and avoid touching the components or metallic contacts on the memory module.
CAUTION: To ensure proper system 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.
CAUTION: To ensure proper system cooling in configurations with mid drive tray, 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.
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.
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 system.
Figure 16. Removing a memory module
Next steps
1 Install the 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.
58 Installing and removing system components
Safety instructions.
Before working inside your system.