Lenovo THINKSERVER 3797 - Manual (Page 175)

1 Power cable
2 SAS signal cable
3 Configuration cable
4 Hard disk drive backplane
Removing a PCI riser-card assembly
The server comes with two riser-card assemblies that each contain two PCI
Express x8 connectors. You can replace a PCI Express riser-card assembly with a
riser-card assembly that contains one PCI Express Gen 2 x16 connector. See
http://www.lenovo.com/thinkserver for a list of riser-card assemblies that you can
use with the server.
Chapter 6. Removing and installing FRUs 167