HP 4310s Notebook Tour - Windows Vista - Page 17

Bottom components Component (1) Battery bay (2) Battery release latch (3) Vents (3) (4) Memory module compartment (5) Hard drive bay (6) SIM slot (select models only) Description Holds the battery. Releases the battery from the battery bay. 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. Contains the memory module slots and a wireless LAN module slot. CAUTION: To prevent an unresponsive system and the display of a warning message, replace the WLAN module with only a module authorized for use in the computer by the governmental agency that regulates wireless devices in your country. 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. Holds the hard drive and a Bluetooth device. Contains a wireless subscriber identity module (SIM). The SIM slot is located inside the battery bay. Bottom components 11