Lenovo ThinkSystem SR950 Setup Manual page 125

CAUTION:
The power control button on the device and the power switch on the power supply do not turn off the
electrical current that is 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.
CAUTION:
Make sure that all server power cords are disconnected from their power sources before performing
this procedure.
Before you install the riser for slot 1 to 4 option:
1. If the I/O tray is installed in the server, remove it. See "Remove the I/O tray" on page 218.
2. Make sure that there is no screw (item 2 in following figure) securing the I/O tray board to the I/O tray in a
location where a captive riser screw will be installed.
3. Make sure that there are no I/O tray fillers installed in riser slot 1 to 4.
4. Install adapters in the riser. See "Install a PCIe adapter in slot 1 to 4" on page 114.
5. If any of the adapters in the riser have internal cables, make sure that they are connected before
installing the riser in the I/O tray.
Complete the following steps to install the riser for slot 1 to 4.
Watch the procedure. A video of the installation process is available:
•
YouTube
• Youku
.
Chapter 3 Server hardware setup
121