System memory guidelines
The PowerEdge C6525 system supports DDR4 registered DIMMs (RDIMMs), load reduced DIMMs (LRDIMMs) and 3DS load
reduced DIMMs (3DS LRDIMMs). System memory holds the instructions that are executed by the processor.
Your system contains 16 memory sockets organized into 8 channels per processor.
Memory channels are organized as follows:
Table 10. Memory channels
Processor
Channel A
Channel B
Channel C
Channel D
Channel E
Channel F
Channel G
Channel H
Processor 1
A6
A5
A2
A1
A8
A7
A4
A3
Processor 2 B6
B5
B2
B1
B8
B7
B4
B3
Figure 17. Memory socket location
Table 11. Supported memory matrix
DIMM type Rank
Capacity
DIMM rated voltage and speed DIMMs per Channel
(DPC)
RDIMM
1R
8 GB
DDR4 (1.2V), 3200 MT/s
3200 MT/s
2R
16 GB / 32 GB / 64 GB
DDR4 (1.2V), 3200 MT/s
3200 MT/s
LRDIMM
8R
128 GB
DDR4 (1.2V), 2666 MT/s
2666 MT/s
8R
128 GB
DDR4 (1.2V), 3200 MT/s
3200 MT/s
NOTE:
Mixing of memory module capacities in a system is not supported.
Removing a memory module
Prerequisites
1. Follow the safety guidelines listed in
.
2. Follow the procedure listed in
Before working inside your system
3.
.
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.
Installing and removing system components
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