5
Memory
The PowerEdge T440 supports up to 768 GB of memory with 16 DIMMs, and at speeds up to 2666 MT/s, providing high
performance in various applications. High memory density ensures that there is no compromise in virtualization.
The PowerEdge T440 supports both registered DIMMs (RDIMM) and load-reduced DIMMs (LRDIMMs), which use a buffer to
reduce memory loading and provide greater density, allowing for the maximum platform memory capacity.
The system supports:
•
Up to six channels with two DPC and total 16 DIMMs
•
DDR4 RDIMM/LRDIMM
•
Only registered ECC DDR4 DIMMs
•
DDR4 speeds up to 2666 MT/s
DIMMs supported
Table 7. Memory technologies
Feature
RDIMM
LRDIMM
Register
Yes
Yes
Buffer
No
Yes
Frequencies
Up to 2666 MT/s
Up to 2666 MT/s
Ranks supported
Single or dual rank
Quad rank
Capacity per DIMM
4 GB, 8 GB, 16 GB or 32 GB
64 GB (available post-release)
Maximum DIMMs per channel
2
1, 2
DRAM technology
x4 or x8
x4
Temperature sensor
Yes
Yes
Error Correction Code (ECC)
Yes
Yes
Single Device Disable Code (SDDC)
Yes
Yes
Address parity
Yes
Yes
Memory population guidelines
Both systems support a flexible memory configuration, according to the following population guidelines:
•
Speed: If DIMMs of different speeds are mixed, all channels across all processors operate at the common frequency of the
slowest DIMM.
•
DIMM type: Maximum two types of DIMMs allowed per system and RDIMMs are supported. RDIMM with LRDIMM cannot be
mixed.
•
DIMMs with different data widths can be mixed. For 14G, DIMMs with x4 and x8 data widths are supported and mixing is
allowed.
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