Lenovo M5800 Desktop - Manual (Page 98)

6. From inside the chassis, pivot the retaining clip 1 that secures the plastic holder of the thermal sensor
inward and then push the clip outward to release the clip. Then disengage the plastic holder holding
the thermal sensor from the chassis.
Figure 30. Removing the thermal sensor
7. Pull the entire thermal sensor out of the chassis.
92 Lenovo M5800 Hardware Maintenance Manual