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Table 38. DIMM configuration specifications
DIMM type
RDIMM
LRDIMM
3DS LRDIMM
NVDIMM
Table 39. DIMM minimum population requirements
DIMM type
1LM DDR4
1LM DDR4
•
DR: DDR4 required.
•
DRE: DDR4 required. But plugging in either one slot is allowed. Then the other 2 slots become DDR4 optional.
•
DO: DDR4 optional.
•
NR: NVDIMM required.
•
NO: NVDIMM optional.
Removing memory module
Prerequisites
CAUTION:
Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple
repairs as authorized in your product documentation, or as directed by the online or telephone service and support team.
Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that are shipped with your product.
1
Ensure that you read the Safety instructions.
2
Complete the procedure listed in Before working inside your system.
WARNING:
The memory modules are hot to touch for some time after the system has been powered down. Allow the memory
modules to cool before handling them. 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
Pull the air baffle tab to release it from the underneath the DIMM socket lever.
2
Remove the air baffle.
54
Installing and removing server components
RDIMM
O
X
X
O
CH0
D0 (A1)
D1 (A7)
DRE
DO
DR
NR
LRDIMM
X
O
X
O
CH1
CH2
D0 (A2)
D0 (A3)
DRE
DRE
DO
DO
3DS LRDIMM
X
X
O
O
CH3
D0 (A4)
D1 (A8)
DO
DO
DR
NR
NVDIMM
O
O
O
X
CH4
CH5
D0 (A5)
D0 (A6)
DO
DO
DO
DO
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