Table 12. System-board-assembly connectors (continued)
25 CFF retimer connector 26 CFF expander power connector
27 Intrusion switch connector 28 Backplane 1 power connector
29 CFF RAID/HBA power connector 30 External LCD connector
31 Front VGA connector 32 PCIe connector 4
33 PCIe connector 3 34 PCIe connector 7 / SATA connector 1
35 PCIe connector 5 / SATA connector 0 36 PCIe connector 6
37 Power supply 1 connector
38 PCIe connector 8
39 GPU power connector
40 Riser 3 power connector
41 Power supply 2 connector 42 Riser 3 sideband connector
43 Riser 2 slot 44 RoT module connector
45 M.2 signal connector 46 Rear backplane power connector
47 PCIe connector 10 / SATA connector 3 48 PCIe connector 11 / SATA connector 4
49 7mm backplane signal connector 50 Rear backplane sideband connector
Notes:
• The front I/O module on rack latch is connected to connector
22 .
• The front I/O module on media bay with a front operator panel is connected to connectors
21 and 22
using a Y cable.
For details, see “Front I/O module” in User Guide or Hardware Maintenance Guide
System-board-assembly switch
This section provides information about locations and functions of the switch block on the system I/O board
and processor board.
Important:
1. Before you change any switch settings or move any jumpers, turn off the server; then, disconnect all
power cords and external cables. Review the following information:
•
http://thinksystem.lenovofiles.com/help/topic/safety_documentation/pdf_files.html
• “Installation Guidelines”, “Handling static sensitive devices”, and “Power off the server ” in User
Guide or Hardware Maintenance Guide.
2. Any system board assembly switch or jumper block that is not shown in the illustrations in this
document are reserved.
Chapter 2. Server components 23
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