Appendix B. Component Reference; Internal Connectors; System-Board Connectors; System-Board Leds - Lenovo ThinkSystem SR950 Setup Manual

Appendix B. Component reference

When installing optional components, you will often need to remove other components to gain access.
Internal connector locations and procedures for removing and installing components to gain access to other
system components are in this appendix.
• "Internal connectors" on page 283
• "Component access" on page 292

Internal connectors

The topics in this section provide information about connectors that are inside the server.
For information about external connectors on the front and rear of the server, see "Front view" on page 24
and "Rear view" on page 31.

System-board connectors

The following illustration shows the internal connectors on the system board.
Figure 53. System-board connectors
Table 219. System-board internal connectors
Callout
"Front panel" connector
1
"Fan board" power connector (J56)
2
"Fan board" signal connector (J40)
3
"Front video" connector
4
Hard disk drive "Signal" connector
5

System-board LEDs

The following illustration shows the location of light path diagnostic LEDs and light path diagnostic switch on
the system board. These LEDs can often identify the source of an error.
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Callout
Hard disk drive "Power" connector
6
Front panel "USB" connector
7
"PCIe/NVMe" connector
8
"NVMe" connector
9
283