HP Compaq tc4400 Hardware Manual page 20

Components
Component
3
Vents (2)
Ä
To prevent overheating, do not obstruct vents. Use the
computer only on a hard, flat surface. Do not allow another
hard surface, such as an adjoining optional printer, or a soft
surface, such as pillows, thick rugs, or clothing, to block
airflow.
✎
The computer fan starts up automatically to cool internal
components and prevent overheating. It is normal for the internal
fan to cycle on and off during routine operation.
4
Battery bay
5
Primary battery pack release
latch
6
Hard drive bay
7
Expansion memory module
compartment
1–18
Description
Enable airflow to cool internal
components.
Holds the primary battery pack.
Releases the primary battery pack
from the battery bay.
Holds the hard drive.
Contains one expansion memory
module slot.
Tablet PC Tour