System-Board-Assembly Switch - Lenovo ThinkSystem SR655 V3 User Manual

Table 8. System-board-assembly connectors (continued)
PCIe connector 7 / SATA connector 0
23
PCIe connector 3
25
PCIe connector 2
27
Backplane 1 power connector
29
External LCD connector
31
Fan board sideband connector
33
Internal RAID power connector
35
Riser 3/ rear backplane sideband connector
37
GPU power connector
39
Riser 2 slot
41
M.2 signal connector
43
Middle backplane power connector
45
Fan board power connector
47
Lift handle
49
Notes:
• The front I/O module on rack latch is connected to connector
• The front operator panel on media bay is connected to connector

System-board-assembly switch

This section provides information about locations and functions of the switch block on the system board
assembly that contains 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" on page 35
• "Handling static-sensitive devices" on page 38
• "Power off the server" on page 42
2. Any system-board-assembly switch or jumper block that is not shown in the illustrations in this
document are reserved.
Backplane 2 power connector
24
PCIe connector 4
26
PCIe connector 1
28
Front VGA connector
30
Pump connector
32
Fan board power connector
34
Power supply 1 connector
36
Power supply 2 connector
38
Riser 3 / rear backplane power connector
40
RoT Connector
42
7mm backplane signal connector
44
Fan 1–6 connectors
46
Fan board sideband connector
48
Intrusion switch connector
50
. See "Front I/O module" on page
19
and connector
19
Chapter 2
15.
using a Y cable.
20
.
Server components
23