This guide shows how to disassemble an Asus Eee PC 900HD to replace the fan (or battery or memory or hard disk or keyboard or motherboard or wireless networking card).
Proceed at your own risk. This will void your warranty, but at this point, you probably don’t have a warranty.
1) Here’s a top view of the Asus Eee PC 900HD:
If your computer doesn’t look like this, you don’t have an Asus Eee PC 900HD. You should probably look for a guide for your specific model.
2) Remove the battery
Slide apart the two latches and remove the battery pack. Also, remove any SD card or SD slot filler.
3) Remove the screws to the hard disk & memory cover
Remove the screws and pop off the cover.
4) Here’s a close-up of the hard disk & memory cover:
5) Remove the hard disk
Carefully slide the hard disk to the right and lift out.