Memory Sub-System; Figure 10. Cek Processor Mounting; Figure 11. Memory Layout - Intel S5000XAL Technical Product Specification

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Intel Server Board S5000PAL / S5000XAL TPS
Heatsink assembly
Thermal interface material (TIM)
3.1.3
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On the Intel Server Board S5000PAL / S5000XAL, the MCH provides four channels of Fully Buffered
DIMM (FB-DIMM) memory. Each channel can support up to 2 Dual Ranked FB-DIMM DDR2 DIMMs. FB-
DIMM memory channels are organized in to two branches for support of RAID 1 (mirroring). The MCH
can support up to 8 DIMMs or a maximum memory size of 32 GB physical memory in non-mirrored mode
and 16 GB physical memory in a mirrored configuration. The read bandwidth for each FB-DIMM channel
is 4.25 GB/s for DDR2 533 FB-DIMM memory which gives a total read bandwidth of 17 GB/s for four FB-
DIMM channels. Thus, this provides 8.5 GB/s of write memory bandwidth for four FB-DIMM channels.
The read bandwidth for each FB-DIMM channel is 5.3GB/s for DDR2 667 FB-DIMM memory which gives
a total read bandwidth of 21GB/s for four FB-DIMM channels. Thus, this provides 10.7 GB/s of write
memory bandwidth for four FB-DIMM channels. The total bandwidth is based on read bandwidth thus the
total bandwidth is 17 GB/s for 533 and 21.0 GB/s for 667.
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On the Intel Server Board S5000PAL / S5000XAL, a pair of channels becomes a branch where Branch
0 consists of channels A and B, and Branch 1 consists of channels C and D. FBD memory channels are
organized into two branches for support of RAID 1(mirroring).
Branch 0
Revision 1.4
Server board
CEK spring
Chassis

Figure 10. CEK Processor Mounting

Memory Sub-system

Channel B
Channel A
Branch 1

Figure 11. Memory Layout

Intel order number: D31979-007
Functional Architecture
Channel C
Channel D
TP02299
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