Thermal Sensor - Lenovo ThinlStation P330 Hardware Maintenance Manual

c. Lift the failing heat-sink-and-fan assembly off the system board.
Notes:
• You might have to gently twist the heat-sink-and-fan assembly to free it from the microprocessor.
• Do not touch the thermal grease while handling the heat-sink-and-fan assembly.
4. To install the heat-sink-and-fan assembly, do the following:
a. Apply appropriate amount of thermal grease to the new heat-sink-and-fan assembly.
b. Position the heat-sink-and-fan assembly on the system board. Ensure that the four screws are
aligned with the holes in the system board.
Note: Ensure that the heat-sink-and-fan assembly cable is toward the microprocessor fan connector
on the system board.
c. Follow the following sequence to tighten the four screws to secure the new heat-sink-and-fan
assembly. Do not over-tighten the screws.
• Partially tighten screw
• Partially tighten screw
d. Connect the heat-sink-and-fan assembly cable to the microprocessor fan connector on the system
board. See "Parts on the system board" on page 38.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to "Completing the parts replacement" on page 187.

Thermal sensor

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 "Read this first: Important safety information" on page 1.
To remove or install the thermal sensor, do the following:
1. Prepare your computer. See "Preparing your computer" on page 98.
2. Locate the thermal sensor. See "FRUs and CRUs" on page 35.
3. To remove the thermal sensor, do the following:
a. Disconnect the thermal-sensor cable from the thermal-sensor connector on the system board. See
"Parts on the system board" on page 38.
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P330 Hardware Maintenance Manual
1 , fully tighten screw 2 , and then fully tighten screw
3 , fully tighten screw 4 , and then fully tighten screw
1 .
3 .