HP 6720R 6

	Unknown user password ..........................................................................................	36
	Component replacement procedures ........................................................................................	37
	Serial number .........................................................................................................	37
	Computer feet .........................................................................................................	38
	Battery ...................................................................................................................	39
	Hard drive .............................................................................................................	40
	WLAN module ........................................................................................................	42
	Memory module ......................................................................................................	45
	Optical drive ..........................................................................................................	46
	Switch cover ...........................................................................................................	47
	Keyboard ...............................................................................................................	50
	Speaker .................................................................................................................	53
	Display lid switch module .........................................................................................	54
	Display assembly ....................................................................................................	55
	Top cover ...............................................................................................................	59
	TouchPad board and TouchPad button board .............................................................	62
	Bluetooth module ....................................................................................................	64
	System board .........................................................................................................	65
	Fan .......................................................................................................................	69
	Heat sink ...............................................................................................................	71
	Processor ...............................................................................................................	73
	Modem module ......................................................................................................	75
	RTC battery ............................................................................................................	77
	ExpressCard assembly .............................................................................................	78
5	Computer Setup
	Starting Computer Setup .........................................................................................................	80
	Using Computer Setup ............................................................................................................	81
	Navigating and selecting in Computer Setup ..............................................................	81
	Restoring factory settings in Computer Setup ...............................................................	81
	Computer Setup menus ...........................................................................................................	82
	File menu ...............................................................................................................	82
	Security menu .........................................................................................................	83
	Diagnostics menu ....................................................................................................	83
	System Configuration menu ......................................................................................	84
6	Specifications
	Computer specifications ..........................................................................................................	86
	15.4-inch, WXGA display specifications ...................................................................................	87
	Hard drive specifications ........................................................................................................	88
	DVD±RW and CD-RWDouble-Layer Combo Drive specifications .................................................	89
	DVD/CD-RW Combo Drive specifications .................................................................................	90
	System DMA specifications ......................................................................................................	91