3 System upgrade
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DIMM population guidelines
The following rules apply when adding DIMMs to the memory boards.
• DIMMs must be populated beginning with memory board A,
DIMM slots A1 and A2.
• All DIMM slots must be populated with either a DIMM or a DIMM
thermal blank.
Important: DIMM thermal blanks must be installed to empty
DIMM slots to ensure proper system thermal performance.
• FBDIMMs should be identical in terms of timing, technology, and
size.
Note: For additional memory configuration, see “Appendix B:
Memory configuration” section on page 163.
Socket 7
Socket 6
Socket 5
Socket 1
Socket 2
Socket 3
Socket 4
Socket 8

FBDIMM

Memory Board