Dell Precision M40 - Manual (Page 15)

Microprocessor Thermal Cooling Assembly
Retaining Clip
Removing the Microprocessor Thermal Cooling Assembly
1. Follow the instructions in " Preparing to Work Inside the Computer ."
2. Remove the keyboard.
3. Remove the hinge cover .
4. Insert a nonmarring flat-blade screwdriver into the latch mechanism at the left side of the microprocessor retaining clip. Pry open the clip by pivoting the
top of the screwdriver toward the right side of the computer.
Microprocessor Thermal Cooling Assembly
5. Lift out the thermal cooling assembly.
Microprocessor Module
NOTICE: Disconnect the computer and attached devices from electrical outlets and remove any installed batteries.
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer.
NOTICE: To ensure maximum cooling for the microprocessor, do not touch the heat transfer areas on the microprocessor thermal cooling assembly. The
oils in your skin reduce the heat transfer capability of the thermal pads.