Lenovo ThinkSystem SR950 Setup Manual page 369

Figure 114. Riser for slot 1 to 4 (riser 1) installation
Step 1. Align the riser with the I/O tray and insert it; then, press the riser into the I/O tray until the connector
is fully seated.
Step 2. Tighten the two captive screws (items 4 in preceding figure) that secure the riser to the I/O tray
board.
If you have no other operations to perform on the I/O tray after installing the riser for slot 1 to 4, install the I/O
tray in the chassis and connect all cables. See "Install the I/O tray" on page 335.
Install the riser for slot 10 to 15 (riser 2)
The riser for adapter slot 10 to 15 (riser 2) is in the I/O tray that is accessed from the rear of the server. After
installing adapters in the riser, insert the riser in the I/O tray and secure it with two captive screws.
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Appendix B. Component reference
365