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
The procedure for removing a DIMM module and an NVDIMM-N module is identical.
Prerequisites
1
Follow the safety guidelines listed in
2
Follow the procedure listed in
Before working inside your system
.
CAUTION:
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.
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.
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 21. 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.
Installing and removing system components
73
Summary of Contents for EMC PowerEdge C6420
Page 1: ...Dell EMC PowerEdge C6420 Regulatory Model E43S Series Regulatory Type E43S001 ...
Page 8: ...Figure 1 Supported configurations for PowerEdge C6420 8 PowerEdge C6420 overview ...
Page 64: ...Figure 12 Removing a sled 64 Installing and removing system components ...
Page 66: ...Figure 14 Installing a sled 66 Installing and removing system components ...
