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DIMM Type DIMMs Populated Per
Channel
Operating Frequency (in
MT/s) For 1.2 V
Maximum DIMM Rank Per
Channel
2133, 1866, 1600, 1333
LRDIMM 1
2133, 1866, 1600, 1333 Quad rank
Figure 8. Memory socket locations
Memory channels are organized as follows:
Processor 1 channel 0: slot A2
channel 1: slot A1
channel 2: slot A3
channel 3: slot A4
Processor 2 channel 0: slot B2
channel 1: slot B1
channel 2: slot B3
channel 3: slot B4
General memory module installation guidelines
Your system supports Flexible Memory Configuration, enabling you to configure and run the system any
valid chipset architectural configuration. The following are the recommended guidelines for best
performance:
• LRDIMMs and RDIMMs must not be mixed.
• x4 and x8 DRAM based DIMMs can be mixed. For more information, see Mode-specific guidelines.
• Single or dual-rank RDIMMs can be populated per channel.
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