HP Mini 5101 - Manual (Page 18)

Bottom components
Component Description
(1) Battery bay Holds the battery.
(2) Battery release latches (2) Release the battery from the battery bay.
(3) Service tag Provides the product brand and series name, serial number (s/n),
and product number (p/n) of your computer. Have this information
available when you contact technical support.
(4) Vents (4) Enable airflow to cool internal components.
NOTE: 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.
Wireless antennae
On select computer models, at least 2 antennae send and receive signals from one or more wireless
devices. These antennae are not visible from the outside of the computer.
8 Chapter 1 Features