Replacing The Thermal Sensor - Lenovo FM 300s Hardware Maintenance Manual

Figure 19. Installing the system fan assembly
2. Reconnect the system fan assembly cables to the system board. See "Parts on the system board"
on page 34.
3. Reinstall the front audio and USB assembly. See "Replacing the front audio and USB assembly"
on page 88.
4. Reinstall the card reader. See "Replacing the card reader" on page 86.
5. Reinstall the storage drive. See "Replacing the storage drive" on page 85.
6. Reinstall the optical drive. See "Replacing the optical drive" on page 83.
7. Reinstall the front bezel. See "Replacing the front bezel" on page 82.
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 108.

Replacing the 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 replace the front audio and USB assembly, do the following:
1. Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to the
computer.
2. Remove the computer cover. See "Removing the computer cover" on page .
3. Remove the front bezel. See "Replacing the front bezel" on page 82.
4. Remove the optical drive. See "Replacing the optical drive" on page 83.
5. Remove the storage drive. See "Replacing the storage drive" on page 85.
6. Remove the card reader. See "Replacing the card reader" on page 86.
7. Remove the front audio and USB assembly. See "Replacing the front audio and USB assembly" on
page 88.
8. Remove the system fan assembly. See "Replacing the system fan assembly" on page 89.
9. Locate the thermal sensor. See "Computer components" on page 31.
10. Disconnect the thermal sensor cable from the system board. See "Parts on the system board" on
page 34.
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Lenovo FM 300s Hardware Maintenance Manual