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IBM System x3550 M4 18

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

Specification RDIMMs

Rank Single rank Dual rank Quad rank

Part numbers 49Y1405 (2 GB)

49Y1406 (4 GB)

49Y1559 (4 GB) 49Y1407 (4 GB)

49Y1397 (8 GB)

49Y1563 (16 GB)

90Y3178 (4 GB)

90Y3109 (8 GB)

00D4968 (16 GB)

49Y1399 (8 GB)

Rated speed 1333 MHz 1600 MHz 1333 MHz 1600 MHz 1066 MHz

Rated voltage 1.35 V 1.5 V 1.35 V 1.5 V 1.35 V

Operating voltage 1.35 V 1.5 V 1.5 V 1.35 V 1.5 V 1.5 V 1.35 V 1.5 V

Maximum quantity* 16 24 24 16 24 24 16 16

Largest DIMM 4 GB 4 GB 4 GB 16 GB 16 GB 16 GB 8 GB 8 GB

Maximum memory

capacity

64 GB 96 GB 96 GB 256 GB 384 GB 384 GB 128 GB 128 GB

Maximum memory

at rated speed

64 GB 64 GB 64 GB 256 GB 256 GB 256 GB 128 GB 64 GB

Maximum operating speed (MHz)

1 DIMM per channel 1333 MHz 1333 MHz 1600 MHz 1333 MHz 1333 MHz 1600 MHz 800 MHz 1066 MHz

2 DIMMs per channel 1333 MHz 1333 MHz 1600 MHz 1333 MHz 1333 MHz 1600 MHz 800 MHz 800 MHz

3 DIMMs per channel NS** 1066 MHz 1066 MHz NS** 1066 MHz 1066 MHz NS** NS**

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

quantity supported is a half of shown.

** NS = Not Supported

IBM System x3550 M4 Product Guide

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