Lenovo ThinkSystem ST650 V2 - Page 130

• If the server is in a rack, remove it from the rack.
• If foot stands are installed on the server, rotate them inwards and lay the server on its side for easier
operation.
• 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 your system might be different than those shown
in the illustrations.
Watch the procedure. A video of the installation and removal process is available:
• YouTube:
https://youtube.com/playlist?list=PLYV5R7hVcs-DoEcxrm2zKNpaKOdZ3f8Qc
• Youku: https://list.youku.com/albumlist/show/id_59636516
Procedure
Step 1. Make preparations for this task.
a. Remove the hot-swap redundant power supply. See “Remove a hot-swap power supply” on
page 170.
b. Remove the server cover. See “Remove the server cover” on page 188.
c. Remove all the flash power modules. See “Remove a flash power module” on page 98.
d. Remove the air baffle. See “Remove the air baffle” on page 72.
e. Remove the PHM. See “Remove a processor and heat sink” on page 177.
Step 2. Remove the Torx T30 nut.
Figure 82. Removing a Torx T30 nut from the heat sink
Note: Do not touch the gold contacts on the bottom of the processor.
a.
Rotate the anti-tilt wire bail inwards.
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 your server.
After you finish
1. Install a new Torx T30 nut. See “Install a heat sink Torx T30 nut” on page 121.
2. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
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ThinkSystem ST650 V2 Maintenance Manual