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 thecomputer.2. Remove the computer cover. See “Removing the computer cover” on page 82.3. Remove the front bezel. See “Replacing the front bezel” on page 82.4. Locate the thermal sensor. See “Computer components” on page 31.5. Disconnect the thermal sensor cable from the system board. See “Parts on the system board” onpage 34.6. From inside the chassis, pivot the left retaining clip 1 that secures the plastic holder of the thermalsensor rightward and then push the clip outward. Then disengage the plastic holder holding the thermalsensor from the chassis.Figure25. Removing the thermal sensor7. Pull the entire thermal sensor out of the chassis.8. Insert the connector and cable of the new thermal sensor into the left hole 1 in the chassis. Then alignthe two tabs on the plastic holder holding the thermal sensor with the two holes 1 and 2 in the chassis,and push the plastic holder until it snaps into position.Figure26. Installing the new thermal sensor9. Reconnect the thermal sensor cable to the system board. See “Parts on the system board” on page 34.10. Reinstall the front bezel. See “Replacing the front bezel” on page 82.92 Lenovo S510 Hardware Maintenance Manual