1. Inorder to replace fix or install your new Compaq A903XX laptop fan and heatsink, you will need to open up your laptop. You can do this by removing the screws from the bottom of the laptop.
2. Once the screws have been removed from the bottom of your laptop, you can now remove the keyboard and plastic bezels from your Compaq A903XX laptop.
3. You will see your Compaq A903XX Fan and Heat Skin exposed.
4. Use a screw drivers and remove the screws from you Compaq A903XX HeatSin Fan.
5. Before reinstalling the new Compaq A903XX Fan onto your laptop, you can clean the Compaq A903XX Fan. To clean your Fan and Heatsink, use a can of air and blow out any dirk from your Compaq A903XX Fan. You can also use a paint brush to clean out the dirt from the hard to get areas. Somtimes cleaning your Compaq A903XX laptop fan will actually repair it. Dirt can cause the Compaq A903XX Laptop Fan to make noise and even stop spinning properly.