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Table 5. Maximum memory speeds (Part 2: Intel Xeon processor E5-2600 product family - UDIMMs and

LRDIMMs)

Specification

Rank

Part numbers

Rated speed

Rated voltage

Operating voltage

Maximum quantity*

Largest DIMM

Maximum memory

capacity

Maximum memory

at rated speed

Maximum operating speed (MHz)

1 DIMM per channel

2 DIMMs per channel

3 DIMMs per channel

* Maximum quantity supported is shown for two processors installed. When one processor installed the maximum

quantity supported is a half of shown.

The following memory protection technologies are supported:

ECC

Chipkill (for x4-based memory DIMMs)

Memory mirroring

Memory rank sparing

If memory mirroring is used, then DIMMs must be installed in pairs (a minimum of one pair per each CPU),

and both DIMMs in a pair must be identical in type and size.

If memory rank sparing is used, then a minimum of one quad-rank DIMM or two single-rank or dual-rank

DIMMs must be installed per populated channel (the DIMMs do not need being identical). In rank sparing

mode, one rank of a DIMM in each populated channel is reserved as spare memory. The size of a rank varies

depending on the DIMMs installed.

System x3550 M4 (E5-2600)

UDIMMs

Dual rank

49Y1404 (4 GB)

1333 MHz

1.35 V

1.5 V

4 GB

64 GB

32 GB

64 GB

1333 MHz

1066 MHz

1333 MHz

Not supported

LRDIMMs

Quad rank

90Y3105 (32 GB)

1333 MHz

1.35 V

1.5 V

32 GB

768 GB

256 GB

512 GB

1333 MHz

1066 MHz

1333 MHz

1066 MHz