Memory Dimm Layout; Figure 3-9 Memory Block Diagram - Silicon Graphics Altix XE250 User Manual

3: Advanced Node Board Setup

Memory DIMM Layout

3-48
Figure 3-9 shows the DIMM slot designations and bank locations on the node board. There are
eight DIMM pairs as follows:
• DIMM pair 1 = 1A and 2A
• DIMM pair 2 = 3A and 4A
• DIMM pair 3 = 1B and 2B
• DIMM pair 4 = 3B and 4B
• DIMM pair 5 = 1C and 2C
• DIMM pair 6 = 3C and 4C
• DIMM pair 7 = 1D and 2D
• DIMM pair 8 = 3D and 4D
DIMM 1D DIMM 2D
Slot 3
DIMM 1C DIMM 2C
Slot 2
Slot 1 DIMM 1B DIMM 2B
Slot 0
DIMM 1A DIMM 2A
Channel 0 Channel 1
Branch 0
Memory Block Diagram
Figure 3-9
DIMM 3D DIMM 4D
DIMM 3C DIMM 4C
DIMM 3B DIMM 4B
DIMM 3A DIMM 4A
Channel 2 Channel 3
Branch 1
MCH
Slot 3
Slot 2
Slot 1
Slot 0
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