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Internal Architecture
The following sections contain information about the internal architecture of Dell EMC PowerEdge MX7000 system.
The following diagram is a simplified view of the MX7000 system, showing some of the modules and their interconnection.
Figure 6. Internal Architecture
Infrastructure boards
Main distribution board
The main distribution board is the most complex of all the internal infrastructure boards. There are no active components, however
there are many signals interconnected on this board. The main distribution board is horizontally placed near the chassis floor. From
the front of the chassis, the six power supplies plug into connectors on the bottom of the main distribution board. Also from the
front of the chassis the eight compute sleds plug into this board for power, management signals, and other fabric connections. From
the rear of the chassis the Management Modules (MMs) plug in to this board to provide overall chassis management and control.
Also from the rear of the chassis the two fabric I/O Modules (Fabric - C IOMs) plug into this board.
Vertical power distribution board
The vertical power distribution board is above the main distribution board, oriented perpendicular to the chassis floor. There are no
active components, but many signal connections on this board. This board connects to the main distribution board with a flex cable,
and power and ground bus bars. From the front of the chassis, the four cooling fans plug into the vertical power distribution board.
Also from the rear of the chassis the four fabric I/O Modules (Fab-A/B IOMs) plug into this board for power, management signals,
and other fabric connections. A cable connects this board to the rear fan board.
Rear fan board
The rear fan board, or 80 mm Fan Interposer, sits parallel to the chassis floor. The rear fans plug into this board from the rear of the
chassis. This board connects internally to the vertical power distribution board, through a signal and power cable.
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