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Troubleshooting and support, Troubleshooting, The computer is unable to start up

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A Troubleshooting and support ● Troubleshooting ● Contacting customer support ● Labels Troubleshooting The following sections describe several common issues and solutions. The computer is unable to start up If the computer does not turn on when you press the power button, the following suggestions may help you determine why the computer does not start up: ● If the computer is plugged into an AC outlet, plug another electrical device into the outlet to be sure that the outlet is providing adequate power. NOTE: Use only the AC adapter provided with the computer or one approved by HP for this computer. ● If the computer is plugged into an external power source other than an AC outlet, plug the computer into an AC outlet using the AC adapter. Be sure that the power cord and AC adapter connections are secure. The computer screen is blank If the screen is blank but you have not turned off the computer, one or more of these settings may be the cause: ● The computer may be in the Suspend state or in Hibernation. To exit Suspend or Hibernation, briefly press the power button. Suspend and Hibernation are energy-saving features that turn off the display. Suspend and Hibernation can be initiated by the system while the computer is on but is not in use, or when the computer has reached a low battery level. To change these and other power settings, right-click the Power icon in the notification area at the far right of the taskbar, and then click Preferences. ● The computer may not be set to display the image on the computer screen. To transfer the image to the computer screen, press f4. On most models, when an optional external display, such as a monitor, is connected to the computer, the image can be displayed on the computer screen or the external display, or on both devices simultaneously. When you press f4 repeatedly, the image alternates among the computer display, one or more external displays, and simultaneous display on all devices. 58 Appendix A Troubleshooting and support

Section	Page
Welcome	9
Finding information	9
Getting to know your computer	11
Top	12
TouchPad	12
Lights	12
Button and speakers	14
Keys	15
Right side	16
Left side	17
Display	18
Wireless antennas	19
Bottom	20
Additional hardware	21
Networking	22
Using an Internet service provider (ISP)	23
Identifying wireless and network status icons	24
Creating a wireless connection	24
Turning wireless devices on and off	24
Using the wireless button	24
Using the operating system controls	24
Using a WLAN	24
Connecting to an existing WLAN	25
Setting up a new WLAN	25
Protecting your WLAN	26
Roaming to another network	26
Using Bluetooth wireless devices (select models only)	27
Connecting to a local area network (LAN)	27
Pointing devices and keyboard	29
Using the keyboard	29
Using the TouchPad	31
Setting pointing device preferences	31
Multimedia	32
Using the media activity controls	32
Audio	33
Adjusting the volume	34
Checking your audio functions	34
Webcam (select models only)	34
Video	35
VGA	35
Power management	36
Shutting down the computer	36
Setting power options	37
Using power-saving states	37
Initiating and exiting Suspend	37
Initiating and exiting Hibernation	37
Using the Power icon	38
Using power management	38
Viewing the current power management settings	38
Changing the current power management settings	38
Using battery power	38
Displaying the remaining battery charge	39
Inserting or removing the battery	40
Charging a battery	41
Maximizing battery life	42
Managing low battery levels	42
Identifying low battery levels	42
Resolving a low battery level	43
Resolving a low battery level when external power is available	43
Resolving a low battery level when a charged battery is available	43
Resolving a low battery level when no power source is available	43
Resolving a low battery level when the computer cannot exit Hibernation	43
Conserving battery power	43
Storing a battery	43
Disposing of a used battery	44
Replacing the battery	44
Using external AC power	44
Testing an AC adapter	45
Drives	46
Handling drives	46
Replacing or upgrading the hard drive	47
Removing the hard drive	47
Installing the hard drive	48
Using optical drives (select models only)	50
Identifying the installed optical drive	50
Playing a CD	50
Removing a CD	50
External devices	52
Using a USB device	52
Connecting a USB device	52
Removing a USB device	54
Using optional external devices	54
Using optional external drives	54
Memory modules	55
Security	59
Protecting the computer	59
Using passwords	59
Setting passwords in the operating system	60
Backup and Recovery	61
Performing a system recovery	62
Backing up your information	63
Setup Utility (BIOS)	64
Starting Setup Utility	64
Using Setup Utility	64
Changing the language of Setup Utility	64
Navigating and selecting in Setup Utility	64
Displaying system information	65
Restoring factory default settings in Setup Utility	65
Exiting Setup Utility	65
Troubleshooting and support	66
Troubleshooting	66
The computer is unable to start up	66
The computer screen is blank	66
Software is functioning abnormally	67
The computer is on but not responding	67
The computer is unusually warm	67
An external device is not working	67
The wireless network connection is not working	68
The optical disc tray does not open for removal of a CD	68
The computer does not detect the optical drive	69
A disc does not play	69
A movie is not visible on an external display	69
The process of burning a disc does not begin, or it stops before completion	70
Contacting customer support	70
Labels	71
Routine care	72
Cleaning the display	73
Cleaning the TouchPad and keyboard	74
Specifications	75
Input power	75
Operating environment	75
Electrostatic discharge	77

Match case Limit results 1 per page

Troubleshooting and support

●

Troubleshooting

●

Contacting customer support

●

Labels

Troubleshooting

The following sections describe several common issues and solutions.

The computer is unable to start up

If the computer does not turn on when you press the power button, the following suggestions may help

you determine why the computer does not start up:

●

If the computer is plugged into an AC outlet, plug another electrical device into the outlet to be sure

that the outlet is providing adequate power.

NOTE:

Use only the AC adapter provided with the computer or one approved by HP for this

computer.

●

If the computer is plugged into an external power source other than an AC outlet, plug the computer

into an AC outlet using the AC adapter. Be sure that the power cord and AC adapter connections

are secure.

The computer screen is blank

If the screen is blank but you have not turned off the computer, one or more of these settings may be

the cause:

●

The computer may be in the Suspend state or in Hibernation. To exit Suspend or Hibernation,

briefly press the power button. Suspend and Hibernation are energy-saving features that turn off

the display. Suspend and Hibernation can be initiated by the system while the computer is on but

is not in use, or when the computer has reached a low battery level. To change these and other

power settings, right-click the

Power

icon in the notification area at the far right of the taskbar, and

then click

Preferences

●

The computer may not be set to display the image on the computer screen. To transfer the image

to the computer screen, press

. On most models, when an optional external display, such as a

monitor, is connected to the computer, the image can be displayed on the computer screen or the

external display, or on both devices simultaneously. When you press

repeatedly, the image

alternates among the computer display, one or more external displays, and simultaneous display

on all devices.

Appendix A

Troubleshooting and support