Lenovo THINKSERVER 3797 - Manual (Page 159)

2 Optional two-port Ethernet card
connector 13 Reserved
3 PCI riser connector 1 14 Fan connector 3
4 DIMM connectors 15 Hot-swap SAS/SATA power connector
backplane 1 and 2
5 Microprocessor 1 16 Hot-swap SAS/SATA power connector
optional backplane 3
6 Operator information panel connector 17 Hot-swap SAS/SATA configuration
cable connector
7 Optical drive connector 18 SAS riser-card connector
8 Front video/USB connector 19 Auxiliary power for PCI Express
graphics adapter connector
9 Reserved 20 Microprocessor 2
10 Fan connector 1 21 PCI riser connector 2
11 Reserved 22 Virtual media key connector
System-board external connectors
The following illustration shows the external input/output connectors on the system
board.
1 USB connector 4
2 USB connector 3
3 Serial connector
Chapter 6. Removing and installing FRUs 151