Lenovo ThinkSystem SR950 Setup Manual page 254

Complete the following steps to install the 4S Performance to 8S Upgrade Kit:
Step 1. Make sure that the server is powered off and disconnected from power source.
Step 2. Disconnect all the external cables.
Step 3. Remove the front cover. See "Remove the front cover" in Maintenance Manual.
Step 4. Make sure that all the trays, including compute trays, storage tray, and the I/O tray are removed
from the server.
• For compute tray removal instructions, see
remove_the_compute_tray.html
• For storage tray removal instructions, see
remove_the_storage_tray.html
• For I/O tray removal instructions, see
the_io_tray.html
Step 5. If the server is in a rack, remove it from the rack.
See the ThinkSystem SR950 Rack Installation Instructions, which is available here:
http://thinksystem.lenovofiles.com/help/topic/7X12/pdf_files.html
Step 6. Remove the midplanes from the server (depending on the configuration, you might need to remove
up to 6 midplanes). You must remove midplanes A (if installed), B, C, and D. However, you do not
need to remove the power midplane (midplane E). See "Midplane identification" in Maintenance
Manual for the locations of all the midplanes.
Instructions for removing the midplanes are available here:
http://thinksystem.lenovofiles.com/help/topic/7X12/remove_a_midplane.html
Note: When you remove the top cover, discard the screws. Use the Torx-head screws that are
provided with the conversion kit instead (eight screws and an extra screw are included).
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.
ThinkSystem SR950 Setup Guide
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http://thinksystem.lenovofiles.com/help/topic/7X12/remove_
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http://thinksystem.lenovofiles.com/help/topic/7X12/
http://thinksystem.lenovofiles.com/help/topic/7X12/