Lenovo ThinkSystem SR850 V2 Maintenance Manual page 152

b. Push the upper edge of the Torx T30 nut towards the center of the heat sink until it
disengages.
c. Remove the Torx T30 nut.
Attention: Visually inspect the removed Torx T30 nut, if the nut is cracked or damaged, make
sure no debris or broken pieces are left inside the server.
After you finish
1. Install a new Torx T30 nut. See "Install a heat sink Torx T30 nut" on page 144.
2. Proceed to complete the parts replacement (see "Complete the parts replacement" on page 218).
Install a heat sink Torx T30 nut
Follow the instructions in this section to install a PEEK (Polyether ether ketone) Torx T30 nut on the heat sink.
About this task
Attention:
• Go over "Installation Guidelines" on page 107 to ensure that you work safely.
• Touch the static-protective package that contains the component to any unpainted metal surface on the
server; then, remove it from the package and place it on a static-protective surface.
• Do not touch the processor contacts. Contaminants on the processor contacts, such as oil from your skin,
can cause connection failures.
Note: The heat sink, processor, and processor carrier for the system might be different from those shown in
the illustrations.
Watch the procedure. A video of this procedure is available from the following links:
•
https://www.youtube.com/playlist?list=PLYV5R7hVcs-C6QgmsUMRG6ul0bHzrGmsG
•
https://list.youku.com/albumlist/show/id_54461099
Procedure
Step 1. Install the Torx T30 nut.
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