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If you need to connect a 733-525 Harness to a motherboard, refer to Figure 9 and follow these
steps. Make sure to route the power and communication wiring on the left side of the bay.
1. Connect one end of the harness to a motherboard in an adjacent bay.
If the adjacent bay is the CPU bay, connect the harness to the P8 and P7 connectors of the
CPU motherboard.
• Insert the harness connector with the blue wire into the P8 connector. Note that the P8
connector has eight pins. Insert the harness connector on either the top four pins or the
bottom four pins, not in the middle.
• Insert the harness connector with the white wire into the P7 connector. Note that the P7
connector has eight pins. Insert the harness connector on either the top four pins or the
bottom four pins, not in the middle.
If the adjacent bay is an expansion bay, connect the harness to the P2 and P3 connectors of the
motherboard installed in the leftmost slot. (If an SDACT or CCDACT occupies the leftmost
slot, connect the harness to the motherboard in the second slot from the left.) Connect the
harness as follows:
• Insert the harness connector with the blue wire into the P2 connector. Note that the P2
connector has eight pins. Insert the harness connector on either the top four pins or the
bottom four pins, not in the middle.
• Insert the harness connector with the white wire into the P3 connector. Note that the P3
connector has eight pins. Insert the harness connector on either the top four pins or the
bottom four pins, not in the middle.
2. Connect the other end of the harness to the leftmost motherboard in the next bay, as
described below. Make sure to route the wiring on the left side of the bay.
• Insert the harness connector with the blue wire into the P2 connector. Note that the
P2 connector has eight pins. Insert the harness connector on either the top four pins
or the bottom four pins, not in the middle.
• Insert the harness connector with the white wire into the P3 connector. Note that the
P3 connector has eight pins. Insert the harness connector on either the top four pins
or the bottom four pins, not in the middle.
Continued on next page
Installing Motherboards into 2975-94xx Back Boxes (4100U),
Continued
Connecting the
733-525 Harness
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