Lenovo ThinkSystem SR950, Setup Manual, Page: 291 / 390

Table 223. SW2 switch block definition (continued)
Switch number
Default position Description
7
Off Power-on password override. Changing the position of this switch
bypasses the power-on password check the next time the server is
turned on and starts the Lenovo XClarity Provisioning Manager so
that you can change or delete the power-on password. You do not
have to move the switch back to the default position after the
power-on password is overridden.
Changing the position of this switch does not affect the
administrator password check if an administrator password is set.
8 Off Reserved
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 information in
http://thinksystem.lenovofiles.com/help/topic/
safety_documentation/pdf_files.html
, “Installation Guidelines” on page 56, “Handling static-sensitive
devices” on page 57, and “Power off the server (disconnect input power)” on page 254.
I/O tray riser connectors
The following illustrations show the internal connectors on the I/O tray risers.
Up to three risers can be installed in the I/O tray. The chassis supports the following riser configurations:
•
Riser 1:
– Slot 1 to 4 riser provides four PCIe3 x8, full height, half length connectors.
– Slot 1 to 4 riser provides four PCIe x16, full height, half length connectors. (8-socket configurations
only)
– Slot 3 to 4 riser provides two PCIe3 x16, full height, half length connectors.
•
Riser 2:
– Slot 10 to 13 riser provides four PCIe3 x8, full height, half length connectors.
– Slot 12 and 13 riser provides two PCIe3 x16, full height, half length connectors.
– Slot 10 to 15 riser provides five PCIe3 x16, full height, half length connectors and one ML2 PCIe3 x16
connector.
•
Riser 3:
– Slot 16 to 17 riser provides two PCIe3 x8, full height, half length connectors.
Slot 1 to 4 and slot 10 to 13 riser connectors
There are four PCIe3 x8, full height, half length connectors each in the slot 1 to 4 (riser connector 1) and slot
10 to 13 (riser connector 2) risers.
Appendix B. Component reference
287