HP PAVILION 1100 Service Manual page 49

Caution
Do not spin the fan blades with your finger, or you could damage the fan's bearings.
Reassembly Notes
• If the thermal pad is damaged, use a sharp knife or scraper to carefully remove it from the heat
sink, then attach a new thermal pad.
• Install the heatsink screws in this order:
1. Install all three screws lightly.
2. Fully tighten the screws in the order marked on the heatsink.
2-28 Removal and Replacement Service Manual