Dell PowerEdge C4130 Owner's Manual page 128

Cabling a dual processor system with two GPUs (Configuration D)
Figure 57. Cabling a dual processor system with two GPUs (Configuration D)
1. GPU 3 riser cable connector on the system
board
3. GPU 2 connector on the system board
5. GPU 2 riser cable connector on the GPU
7. GPU 3
9. GPU 4 blank
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2. system board
4. GPU 1 blank
6. GPU 2
8. GPU 3 riser cable connector on the GPU