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HP G72-b66US Notebook PC User Guide - Windows 7 - Page 18

Bottom components, Features - fan replacement

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Bottom components Component (1) Battery bay (2) Vents (4) (3) Battery release latch (4) Hard drive bay (5) Memory module compartment Description Holds the battery. 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. Releases the battery from the battery bay. Holds the hard drive. Holds two memory modules, the wireless local area network (WLAN) module, and the RTC battery. 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. 8 Chapter 1 Features

Section	Page
Features	11
Identifying hardware	11
Components	12
Top components	12
TouchPad	12
Lights	13
Button and speakers	14
Keys	15
Right-side components	16
Left-side components	17
Bottom components	18
Display components	19
Wireless antennas	19
Additional hardware components	21
Labels	22
Wireless, local area network, and modem	23
Using wireless devices	23
Identifying wireless and network status icons	24
Using the wireless controls	24
Using the wireless action key	24
Using HP Wireless Assistant	25
Using operating system controls	25
Using a WLAN	26
Setting up a WLAN	26
Protecting your WLAN	27
Connecting to a WLAN	28
Roaming to another network	28
Using Bluetooth wireless devices (select models only)	29
Bluetooth and Internet Connection Sharing (ICS)	29
Troubleshooting wireless connection problems	30
Cannot connect to a WLAN	30
Cannot connect to a preferred network	30
Network icon is not displayed	31
Current network security codes are unavailable	31
WLAN connection is very weak	32
Cannot connect to the wireless router	32
Using the modem (select models only)	33
Connecting a modem cable	33
Connecting a country-specific modem cable adapter	34
Selecting a location setting	34
Viewing the current location selection	34
Adding new locations when traveling	35
Solving travel connection problems	36
Connecting to a local area network	37
Pointing devices and keyboard	38
Using the TouchPad	38
Turning the TouchPad on and off	39
Using TouchPad gestures	39
Scrolling	40
Pinching	40
Rotating	41
Setting pointing device preferences	41
Using the keyboard	41
Cleaning the TouchPad and keyboard	44
Multimedia	45
Multimedia features	45
Identifying your multimedia components	46
Adjusting the volume	47
Using the media activity functions	48
Using the media activity action keys	48
Multimedia software	49
Using CyberLink PowerDVD software	49
Using other preinstalled multimedia software	49
Installing multimedia software from a disc	49
Audio	50
Connecting external audio devices	50
Checking your audio functions	50
Video	51
Connecting an HDMI device (select models only)	52
Configuring audio for HDMI (select models only)	53
Optical drive	54
Webcam (select models only)	55
Webcam tips	55
Adjusting webcam properties	55
Power management	57
Setting power options	57
Using power-saving states	57
Initiating and exiting Sleep	58
Initiating and exiting Hibernation	58
Using the battery meter	59
Using power plans	59
Viewing the current power plan	59
Selecting a different power plan	59
Customizing power plans	59
Setting password protection on wakeup	60
Using external AC power	61
Connecting the AC adapter	62
Testing an AC adapter	63
Using battery power	64
Finding battery information in Help and Support	64
Using Battery Check	64
Displaying the remaining battery charge	65
Inserting or removing the battery	65
Charging a battery	66
Maximizing battery discharge time	67
Managing low battery levels	67
Identifying low battery levels	67
Resolving a low battery level	68
Resolving a low battery level when external power is available	68
Resolving a low battery level when a charged battery is available	68
Resolving a low battery level when no power source is available	68
Resolving a low battery level when the computer cannot exit Hibernation	68
Calibrating a battery	68
Step 1: Fully charge the battery	68
Step 2: Disable Hibernation and Sleep	69
Step 3: Discharge the battery	70
Step 4: Fully recharge the battery	70
Step 5: Reenable Hibernation and Sleep	71
Conserving battery power	71
Storing a battery	71
Disposing of a used battery	72
Replacing the battery	72
Switching between graphics modes (select models only)	73
Shutting down the computer	74
Drives	75
Handling drives	75
Optical drive	76
Identifying the installed optical drive	76
Using optical discs	77
Selecting the right disc (CDs, DVDs, and BDs)	78
CD-R discs	78
CD-RW discs	78
DVD±R discs	78
DVD±RW discs	78
LightScribe DVD+R discs	79
Blu-ray Disc (BD)	79
Playing a CD, DVD, or BD	79
Configuring AutoPlay	81
Changing DVD region settings	81
Observing the copyright warning	82
Copying a CD, DVD, or BD	82
Creating or “burning” a CD or DVD	83
Removing a CD, DVD, or BD	84
Troubleshooting drive and device driver problems	84
The optical disc tray does not open for removal of a CD, DVD, or BD	84
A disc does not play automatically	85
A DVD movie stops, skips, or plays erratically	85
A DVD movie is not visible on an external display	86
The process of burning a disc does not begin, or it stops before completion	86
A DVD playing in Windows Media Player produces no sound or display	86
A device driver must be reinstalled	86
Obtaining the latest HP device drivers	87
Obtaining the latest Windows device drivers	88
Using external drives	89
Improving hard drive performance	90
Using Disk Defragmenter	90
Using Disk Cleanup	90
Replacing the hard drive	91
External devices and external media cards	95
Using a USB device	95
Connecting a USB device	95
Removing a USB device	96
Using Digital Media Slot cards	97
Inserting a digital card	97
Removing a digital card	98
Adding or replacing a memory module	99
Security	102
Protecting the computer	102
Using passwords	103
Setting passwords in Windows	103
Setting passwords in Setup Utility	103
Administrator password	104
Managing an administrator password	104
Entering an administrator password	104
Power-on password	105
Managing a power-on password	105
Entering a power-on password	105
Using antivirus software	106
Using firewall software	106
Installing critical security updates	107
Installing an optional security cable	107
Setup Utility (BIOS)	108
Starting Setup Utility	108
Using Setup Utility	109
Changing the language of Setup Utility	109
Navigating and selecting in Setup Utility	109
Displaying system information	110
Restoring default settings in Setup Utility	110
Exiting Setup Utility	111
Setup Utility menus	111
Main menu	111
Security menu	111
System Configuration menu	112
Diagnostics menu	112
Software updates	113
Updating the BIOS	114
Determining the BIOS version	114
Downloading a BIOS update	115
Updating programs and drivers	116
Backup and recovery	117
Creating recovery discs	118
Backing up your information	119
Using Windows Backup and Restore	120
Using system restore points	121
When to create restore points	121
Create a system restore point	121
Restore to a previous date and time	121
Performing a recovery	122
Recovering from the recovery discs	122
Recovering from the dedicated recovery partition (select models only)	122