Cisco Cisco UCS C22 M3 Rack Server Scheda Tecnica

Each CPU has four DIMM channels:

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CPU1 has channels A, B, C, and D

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CPU2 has channels E, F, G, and H

Each DIMM channel has three slots: slot 1, slot 2, and slot 3. The blue-colored DIMM slots are for slot 1, the 
black-colored slots for slot 2, and the white slots for slot 3.

As an example, DIMM slots A1, B1, C1, and D1 belong to slot 1, while A2, B2, C2, and D2 belong to slot 2.

 shows how slots and channels are physically laid out on the motherboard. The DIMM slots on the 

right half of the motherboard (channels A, B, C, and D) are associated with CPU 1, while the DIMM slots on 
the left half of the motherboard (channels E, F, G, and H) are associated with CPU 2. The slot 1 (blue) DIMM 
slots are always located farther away from a CPU than the corresponding slot 2 (black) and slot 3 (white) 
slots. Slot 1 slots (blue) are populated before slot 2 slots (black) and slot 3 (white) slots.