Lenovo ThinkSystem SR950 Setup Manual page 139

Step 7. Install the midplanes that are provided with the conversion kit. Install only midplane B, C, and D.
Note: Two midplane C interconnect cards are provided in the conversion kit. Make sure to install
both of them.
Instructions for installing the midplanes are available here:
http://thinksystem.lenovofiles.com/help/topic/7X12/install_a_midplane.html
Step 8. If a filler is installed in the upper tray bay, you must remove it and install a compute tray to enable
eight-socket capability.
Complete the following steps to remove the upper tray filler and install a compute tray:
a. Remove the four screws (two each side) securing the upper tray filler.
b. Slide the upper tray filler out from the front of the server.
c. Align the compute tray with the opening in the front of the chassis, and insert it.
d. Fully open the compute tray release levers, and push the compute tray into the chassis until it
stops.
e. Rotate the compute tray release levers towards the center until they lock and are fully closed.
.
Chapter 3 Server hardware setup
135