Figure 12. Dimm Sockets - Intel SC5650SCWS Service Manual

Workstation Board Features
DDR3 DIMMs must meet the following requirements:
Use only 240-pin DDR3 DIMMs.
A minimum of one 1 GB DDR3 DIMM is required in DIMM socket DIMM_A1.
Either registered DDR3 DIMMs (RDIMMs) or ECC unbuffered DDR3 DIMMs (UDIMMs). No mixing of RDIMMs and
UDIMMs.
Mixing memory type, size, speed, and/or rank on this platform has not been validated and is not supported
Mixing memory vendors is not supported on this platform by Intel
Non-ECC memory is not supported and has not been validated in a workstation environment
DDR3-800, DDR3-1066, or DDR3-1333
DIMM within a channel must be populated starting with the first socket (blue socket) of the channel: DIMM_A1,
DIMM_B1, DIMM_C1, DIMM_D1, DIMM_E1, or DIMM_F1.
When installing Quad-rank DIMM, must populate Quad-Rank DIMM starting with the first slot of each memory channel.
Intel® Workstation System SC5650SCWS Service Guide

Figure 12. DIMM Sockets

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