HP DM3 manual Or region. If you replace the module and then receive a

Item	Component	Function
(5)	Memory module compartment	Contains the memory module slot (2 slots on select
		models) and a wireless LAN module.
		NOTE: 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.
(6)	Hard drive bay	Holds the hard drive and wireless wide area network
		(WWAN) module (select models only).

NOTE: 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.

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