Lenovo ThinkServer RD640 User Manual And Hardware Maintenance Manual page 41

1 Hot-swap redundant power supply 2 (available in some models)
2
Hot-swap redundant power supply 1
3 PCI Express card area for cards on the riser card assembly 2
Figure 14. Riser card assembly 2
Slot Physical link width
1
2
3
Notes:
1 2
Negotiable link width
1 2
Supported card length and height
1 2
.
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