SUPPLEMENTAL MATERIAL

7

CPUs and heatsinks (two)

16

Power supplies (two, hot-swappable

 

 

 

access through rear panel)

 

 

 

 

8

Integrated RAID on motherboard, and mini-SAS

17

RTC battery on motherboard

 

connectors

 

 

 

 

 

 

9

Mezzanine RAID card, mini-SAS connectors

18

Software RAID 5 header (RAID key).

 

SAS1 and SAS2

 

 

 

 

 

 

CPUs and DIMMs

Physical Layout

Each CPU has four DIMM channels:

CPU1 has channels A, B, C, and D

CPU2 has channels E, F, G, and H

Each DIMM channel has two banks: bank 1 and bank 2. The blue-colored DIMM slots are for bank 1 and the black-colored slots are for bank 2.

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

Figure 7 shows how banks and channels are physically laid out on the motherboard. The DIMM slots on the right (channels A, B, C, and D) are associated with CPU1, while the DIMM slots on the left (channels E, F, G, and H) are associated with CPU2. The bank 1 (blue) DIMM slots are always located farther away from a CPU than the corresponding bank 2 (black) slots. Bank 1 slots (blue) are populated before bank 2 slots (black).

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Cisco UCS Cisco UCS C220 M3 High-Density Rack Server (Small Form Factor Disk Drive Model)

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Cisco Systems A03D600GA2 manual CPUs and DIMMs, Physical Layout