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The computer is unusually warm, An external device is not working - network adapter drivers

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CAUTION: Emergency shutdown procedures result in the loss of unsaved information. ● Press and hold the power button for at least 5 seconds. ● Disconnect the computer from external power and remove the battery. The computer is unusually warm It is normal for the computer to feel warm to the touch while it is in use. But if the computer feels unusually warm, it may be overheating because a vent is blocked. If you suspect that the computer is overheating, allow the computer to cool to room temperature. Be sure to keep all vents free from obstructions while you are using the computer. WARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do not place the computer directly on your lap or obstruct the computer air vents. Use the computer only on a hard, flat surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or clothing, to block airflow. Also, do not allow the AC adapter to contact the skin or a soft surface, such as pillows or rugs or clothing, during operation. The computer and the AC adapter comply with the user-accessible surface temperature limits defined by the International Standard for Safety of Information Technology Equipment (IEC 60950). NOTE: The fan in the computer starts up automatically to cool internal components and prevent overheating. It is normal for the internal fan to cycle on and off during operation. An external device is not working Follow these suggestions if an external device does not function as expected: ● Turn on the device according to the manufacturer's instructions. ● Be sure that all device connections are secure. ● Be sure that the device is receiving electrical power. ● Be sure that the device, especially if it is older, is compatible with the operating system. ● Be sure that the correct drivers are installed and updated. The wireless network connection is not working If a wireless network connection is not working as expected, follow these suggestions: ● To enable or disable a wireless or wired network device, right-click the Network Connection icon in the notification area, at the far right of the taskbar. To enable devices, select the check box from the menu option. To disable the device, clear the check box. ● Be sure that the wireless device is turned on. ● Be sure that the computer wireless antennas are free from obstructions. ● Be sure that the cable or DSL modem and its power cord are properly connected and that the lights are on. ● Be sure that the wireless router or access point is properly connected to its power adapter and to the cable or DSL modem, and that the lights are on. ● Disconnect and then reconnect all cables, and turn the power off and then back on. 78 Appendix A Troubleshooting and support

Section	Page
Welcome	11
Finding information	12
Getting to know your computer	13
Top	13
TouchPad	13
Lights	14
Buttons speakers, and fingerprint reader (select models only)	16
Keys	19
Front	21
Right	22
Left	23
Display	24
Bottom	26
Identifying the bottom parts of the computer	27
Networking	29
Using an Internet service provider (ISP)	29
Identifying wireless and network status icons	29
Creating a wireless connection	29
Turning wireless devices on and off	29
Using the wireless button	29
Using the operating system controls	30
Using a WLAN	30
Connecting to an existing WLAN	30
Setting up a new WLAN	31
Protecting your WLAN	31
Roaming to another network	32
Using Bluetooth wireless devices (select models only)	32
Connecting to a wired network	32
Connecting to a local area network (LAN) (select models only)	32
Keyboard and pointing devices	34
Using the keyboard	34
Identifying the hotkeys	34
Using keypads	35
Using the embedded numeric keypad (select models only)	35
Turning the embedded numeric keypad on and off	35
Switching key functions on the embedded numeric keypad	36
Using the integrated numeric keypad (select models only)	36
Using an optional external numeric keypad	36
Using the TouchPad	36
Turning the TouchPad off and on	36
Navigating	37
Selecting	37
Using TouchPad gestures	37
Scrolling	39
Pinching/Zooming	39
Setting pointing device preferences	39
Multimedia	40
Using the audio features	40
Adjusting the volume	40
Checking your audio functions	41
Using the Webcam (select models only)	41
Using video devices	41
VGA	41
HDMI	44
Configuring audio for HDMI	44
Power management	45
Shutting down the computer	45
Setting power options	45
Using power-saving states	45
Initiating and exiting Suspend	46
Initiating and exiting Hibernation	46
Using the Power icon	46
Using power management	46
Viewing the current power management settings	47
Changing the current power management settings	47
Using battery power	47
Displaying the remaining battery charge	47
Inserting or removing the battery	47
Charging a battery	49
Maximizing battery life	50
Managing low battery levels	50
Identifying low battery levels	50
Resolving a low battery level	51
Resolving a low battery level when external power is available	51
Resolving a low battery level when a charged battery is available	51
Resolving a low battery level when no power source is available	51
Resolving a low battery level when the computer cannot exit Hibernation	51
Conserving battery power	51
Storing a battery	51
Disposing of a used battery	52
Replacing the battery	52
Using external AC power	52
Testing an AC adapter	52
Drives	54
Handling drives	54
Using the optional security screw	54
Removing or replacing the service door	55
Removing the service door	55
Replacing the service door	56
Replacing or upgrading the hard drive	57
Removing the hard drive	57
Installing a hard drive	59
Using optical drives (select models only)	60
Identifying the installed optical drive	60
Inserting an optical disc	60
Tray-load	60
Removing an optical disc	60
Tray-load	60
When the disc tray opens normally	60
When the disc tray fails to open	61
External cards and devices	63
Using Media Card Reader cards (select models only)	63
Inserting a digital card	63
Removing a digital card	63
Using a USB device	64
Connecting a USB device	65
Removing a USB device	65
Using optional external devices	65
Using optional external drives	66
Memory modules	67
Security	70
Protecting the computer	70
Using passwords	70
Setting passwords in the operating system	71
Setting passwords in Computer Setup	71
Managing a BIOS administrator password	72
Entering a BIOS administrator password	72
Using a Computer Setup DriveLock password	72
Managing a DriveLock password	73
Entering a DriveLock password	73
Using Computer Setup Automatic DriveLock	73
Managing an Automatic DriveLock password	73
Using firewall software	73
Installing an optional security cable	74
Using the fingerprint reader (select models only)	75
Enabling fingerprint authentication during logon	75
Enrolling your fingerprint	75
Backup and Recovery	77
Performing a system recovery	77
Backing up your information	78
Computer Setup (BIOS) and Advanced System Diagnostics	79
Starting Computer Setup	79
Using Computer Setup	79
Navigating and selecting in Computer Setup	79
Restoring factory settings in Computer Setup	80
Updating the BIOS	80
Determining the BIOS version	80
Downloading a BIOS update	81
Using Advanced System Diagnostics	82
MultiBoot	83
About the boot device order	83
Enabling boot devices in Computer Setup	84
Considering boot order changes	84
Choosing MultiBoot preferences	85
Setting a new boot order in Computer Setup	85
Dynamically choosing a boot device using the f9 prompt	86
Setting a MultiBoot Express prompt	86
Entering MultiBoot Express preferences	86
Troubleshooting and support	87
Troubleshooting	87
The computer is unable to start up	87
The computer screen is blank	87
Software is functioning abnormally	87
The computer is on but is not responding	87
The computer is unusually warm	88
An external device is not working	88
The wireless network connection is not working	88
The optical disc tray does not open for removal of a CD or DVD	89
The computer does not detect the optical drive	90
A disc does not play	90
A movie is not visible on an external display	90
The process of burning a disc does not begin, or it stops before completion	91
Contacting support	91
Labels	92
Cleaning your computer	93
Cleaning products	93
Cleaning procedures	93
Cleaning the display	93
Cleaning the sides and cover	93
Cleaning the TouchPad and keyboard	94
Specifications	95
Input power	95
Operating environment	95
Electrostatic discharge	96

Match case Limit results 1 per page

CAUTION:

Emergency shutdown procedures result in the loss of unsaved information.

●

Press and hold the power button for at least 5 seconds.

●

Disconnect the computer from external power and remove the battery.

The computer is unusually warm

It is normal for the computer to feel warm to the touch while it is in use. But if the computer feels

unusually

warm, it may be overheating because a vent is blocked.

If you suspect that the computer is overheating, allow the computer to cool to room temperature. Be

sure to keep all vents free from obstructions while you are using the computer.

WARNING!

To reduce the possibility of heat-related injuries or of overheating the computer, do not

place the computer directly on your lap or obstruct the computer air vents. Use the computer only on

a hard, flat surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft

surface, such as pillows or rugs or clothing, to block airflow. Also, do not allow the AC adapter to

contact the skin or a soft surface, such as pillows or rugs or clothing, during operation. The computer

and the AC adapter comply with the user-accessible surface temperature limits defined by the

International Standard for Safety of Information Technology Equipment (IEC 60950).

NOTE:

The fan in the computer starts up automatically to cool internal components and prevent

overheating. It is normal for the internal fan to cycle on and off during operation.

An external device is not working

Follow these suggestions if an external device does not function as expected:

●

Turn on the device according to the manufacturer's instructions.

●

Be sure that all device connections are secure.

●

Be sure that the device is receiving electrical power.

●

Be sure that the device, especially if it is older, is compatible with the operating system.

●

Be sure that the correct drivers are installed and updated.

The wireless network connection is not working

If a wireless network connection is not working as expected, follow these suggestions:

●

To enable or disable a wireless or wired network device, right-click the

Network Connection

icon in the notification area, at the far right of the taskbar. To enable devices, select the check

box from the menu option. To disable the device, clear the check box.

●

Be sure that the wireless device is turned on.

●

Be sure that the computer wireless antennas are free from obstructions.

●

Be sure that the cable or DSL modem and its power cord are properly connected and that the

lights are on.

●

Be sure that the wireless router or access point is properly connected to its power adapter and to

the cable or DSL modem, and that the lights are on.

●

Disconnect and then reconnect all cables, and turn the power off and then back on.

Appendix A

Troubleshooting and support