Getting Started HP Notebook - Windows Vista and Windows 7

Component Description
(5)
SIM slot Supports a wireless subscriber identity module (SIM). The
SIM slot is located inside the battery bay.
(6) Hard drive bay Holds the hard drive, and also contains the wireless LAN
module slot, the WWAN module slot, and the memory
module slots.
CAUTION: To prevent an unresponsive system, replace
the wireless module only with a wireless module
authorized for use in the computer by the governmental
agency that regulates wireless devices in your country or
region. If you replace the module and then receive a
warning message, remove the module to restore computer
functionality, and then contact technical support through
Help and Support.
16 Chapter 2 Getting to know your computer