Lenovo ThinkSystem SR950 Setup Manual page 324

3. If you removed one or more system boards or a compute system board filler from a compute tray, install
the system boards or system board filler. See "Install a system board" on page 310or "Install a system
board filler" on page 313.
4. Install the upper compute tray or storage tray. See "Install a compute tray" on page 307 or "Install the
storage tray (fully removed)" on page 377.
5. Install the front cover. See "Install the front cover" on page 322.
Install a fan cage (lower tray)
The lower fan cage is in the lower compute tray that is accessed from the front of the server. Fan cages are
keyed and each can be used only in one type of Upper/lower compute tray. Numbers on the fan cages are
right-side up when the compute tray is installed in the chassis. Install the lower fan cage by connecting the
fan cage electrical connector, inserting the fan cage in the lower compute tray, and pushing it backward until
it locks in place.
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.
"
CAUTION:
Make sure that all server power cords are disconnected from their power sources before performing
this procedure.
Complete the following steps to install a lower fan cage:
Watch the procedure. A video of the installation process is available:
• YouTube
•
Youku
ThinkSystem SR950 Setup Guide
320
" on page 56