
Figure 6-7.  Optional PCIe Left Expansion-Card  Riser Board Components
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| 1 | riser release pin | 2 | slot 2 PCIe x8 lane width | 3 | slot 3 PCIe x4 lane width | |||||
| 4 | pin guide (2) | 5 | system board connector | 
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| 1 | riser release pin | 2 | slot 2  | 3 | slot 3  | 
| 4 | pin guide (2) | 5 | system board connector | 
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