Sparing; Mirroring; Raid; Supported Configurations - Dell PowerEdge R815 Technical Manual

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If DIMMs of different speeds are mixed, all channels will operate at the fastest
common frequency.
6.5

Sparing

Memory sparing is supported. Sparing will require a fully populated memory
configuration (2P = 16 DIMMs, 4P = 32 DIMMs).
6.6

Mirroring

No mirroring support.
6.7

RAID

No RAID support.
6.8

Supported Configurations

Supported Configurations are detailed in Table 9.
System # of
Capacity CPUs
8 GB 2 RDIMM
16 GB 2 UDIMM
16 GB 2 RDIMM
16 GB 2 & 4 UDIMM
16 GB 4 RDIMM
32 GB 2 UDIMM
32 GB 2 RDIMM
32 GB 4 UDIMM
32 GB 4 RDIMM
64 GB 2 & 4 RDIMM
64 GB 2 RDIMM
64 GB 4 UDIMM
64 GB 4 RDIMM
96 GB 2 RDIMM
96 GB 4 RDIMM
128 GB 2 RDIMM
Dell PowerEdge R815 Technical Guide

Supported Configurations

Table 9.
DIMM DIMM # of
Type Capacity DIMMs
1
2
2
1
1
2
2
2
2
4
8
2
2
8
4
8
DIMM # of
Capacity DIMMs
8 — —
8 — —
8 — —
16 — —
16 — —
16 — —
16 — —
16 — —
16 — —
16 — —
8 — —
32 — —
32 — —
8 4 8
16 2 16
16 — —
Ranks 1Gb or
Data
per 2Gb
width
DIMM based
1 1
2 1
2 1
1 1
1 1
2 1
2 1
2 1
2 1
2 1
2 2
2 1
2 1
2 2 & 1
2 1
2 2
28
x8
x8
x8
x8
x8
x8
x8
x8
x8
x4
x4
x8
x8
x4
x4
x4