HP Compaq Presario,Presario F500 Maintenance And Service Manual page 67

Remove the fan/heat sink assembly (3).
4.
NOTE: Due to the adhesive quality of the thermal paste and thermal pads located between the
fan/heat sink assembly and system board components, it may be necessary to move the fan/heat
sink assembly from side to side to detach the assembly.
NOTE: The thermal paste and thermal pads should be thoroughly cleaned from the surfaces of the fan/
heat sink assembly (1), (2), and (3), the system board components (4) and (6), and the processor (5)
each time the fan/heat sink assembly is removed. Thermal pads and thermal paste should be applied to
all surfaces before the fan/heat sink assembly is reinstalled. Thermal pads and thermal paste are included
with all fan/heat sink assembly, system board, and processor spare part kits.
Reverse this procedure to install the fan/heat sink assembly.
Component replacement procedures 59