Lenovo 7D31, Maintenance Manual

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Figure 61. Installing a Torx T30 nut into 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. Orient the Torx T30 nut under the anti-tilt wire bail; then, align the Torx T30 nut with the
socket at an angle as shown.
c. Push the lower edge of the Torx T30 nut into the socket until it clicks into place. Make sure
the Torx T30 nut is secured under the four clips in the socket.
After you finish
1. Make sure all four nuts are installed to the PHM, and install the PHM. See “Install a processor and heat
sink” on page 185.
2. Proceed to complete the parts replacement (see “Complete the parts replacement” on page 218).
Intrusion switch replacement
Follow instructions in this section to remove or install the intrusion switch.
Remove the intrusion switch
Follow instructions in this section to remove the intrusion switch.
About this task
Attention:
• Go over “Installation Guidelines” on page 107 to ensure that you work safely.
• Turn off the server and peripheral devices and disconnect the power cords and all external cables (see
“Power off the server” on page 12).
Chapter 4
.
Hardware replacement procedures
145