Dell H730P Specifications download pdf (Page 17)

17 | Dell PowerEdge Technical Guide

Memory 5

More memory options are available than ever before with the Dell PowerEdge R920 — greater

capacities, higher frequencies and more flexibility. The R920 supports up to 6TB of LRDIMM

memory (with 96 x 64GB LRDIMMs); up to 3TB of LRDIMM memory (with 96 x 32GB LRDIMMs) and

up to 1.5TB of RDIMM memory (with 48 x 16GB RDIMMs.)

In addition to supporting registered DIMMs (RDIMM), the R920 supports load reduced DIMMs

(LRDIMM), which use a buffer to reduce memory loading and provide greater density, allowing for

the maximum platform memory capacity. High memory density provides a richer, no compromise

virtualization environment. While the buffer in the LRDIMM reduces memory bus loading and allows

50% higher capacity in a system, the buffer does introduce additional latency, which will have a

small impact on system performance.

Increase your uptime and reduce data loss with reliability, availability and serviceability (RAS) features

like memory mirroring, sparing and many others. RAS aids in the rapid and accurate diagnosis of

faults that require service, increasing your memory reliability.

Supported memory

The R920 supports the memory technologies shown in Table 7.

Memory technologies supported Table 7.

Feature

RDIMM

LRDIMM

Yes

Buffer

Yes

Frequencies*

1600MT/s

Ranks supported

1 or 2

4 or 8

Capacity per DIMM

4, 8 or 16GB

32 or 64GB

Maximum DIMMs per channel

DRAM technology

Temperature sensor

Yes

Error Correction Code (ECC)

Yes

Enhanced Single Device Data

Correction (SDDC +1)

Yes, x8 (lockstep)

Enhanced DRAM Double Device

Data Correction (DDDC +1)

Yes, x4 (lockstep)

Address parity

Yes

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