Specifications

Chapter 4. Product information and technology 89

There are 16 buffered DIMM slots on the p260 and p24L, as shown in

Figure 4-17. The p460 adds two more processors and 16 additional DIMM slots,

divided evenly (eight memory slots) per processor.

Figure 4-17 Memory DIMM topology (IBM Flex System p260 Compute Node)

The memory-placement rules are as follows:

򐂰 Install DIMM fillers in unused DIMM slots to ensure proper cooling.

򐂰 Install DIMMs in pairs. Both need to be the same size.

򐂰 Both DIMMs in a pair must be the same size, speed, type, and technology.

You can mix compatible DIMMs from multiple manufacturers.

򐂰 Install only supported DIMMs, as described on the

IBM ServerProven® website:

http://www.ibm.com/servers/eserver/serverproven/compat/us/

SMI

POWER7

Processor 1

POWER7

Processor 0

DIMM 1 (P1-C1)

DIMM 2 (P1-C2)

DIMM 3 (P1-C3)

DIMM 4 (P1-C4)

DIMM 5 (P1-C5)

DIMM 6 (P1-C6)

DIMM 7 (P1-C7)

DIMM 8 (P1-C8)

DIMM 9 (P1-C9)

DIMM 10 (P1-C10)

DIMM 11 (P1-C11)

DIMM 12 (P1-C12)

DIMM 13 (P1-C13)

DIMM 14 (P1-C14)

DIMM 15 (P1-C15)

DIMM 16 (P1-C16)