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HP mt245 User Guide - Page 70

Troubleshooting, Troubleshooting resources, Resolving issues, The computer is unable to start up

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B Troubleshooting Troubleshooting resources ● Contact HP support. For U.S. support, go to http://www.hp.com/go/contactHP. For worldwide support, go to http://welcome.hp.com/country/us/en/wwcontact_us.html. Choose from the following types of support: ◦ Chat online with an HP technician. NOTE: When chat is not available in a particular language, it is available in English. ◦ Find HP support worldwide telephone numbers. ◦ Locate an HP service center. Resolving issues 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 Sleep state. To exit Sleep, briefly press the power button. Sleep is an energy-saving feature that turns off the display. Sleep 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 Battery icon on the Windows desktop 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 fn+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 fn+f4 repeatedly, the image alternates among the computer display, one or more external displays, and simultaneous display on all devices. 60 Appendix B Troubleshooting

Section	Page
Welcome	11
Finding information	12
Getting to know your computer	13
Right	13
Left	14
Display	16
Top	18
TouchPad	18
Lights	19
Buttons	19
Keys	21
Bottom	22
Connecting to a network	23
Connecting to a wireless network	23
Using the wireless controls	23
Turning wireless devices on or off	23
Using the wireless button	23
Using operating system controls	24
Using a WLAN	24
Using an Internet service provider	24
Setting up a WLAN	24
Configuring a wireless router	25
Protecting your WLAN	25
Connecting to a WLAN	25
Using Bluetooth wireless devices	26
Connecting to a wired network	26
Connecting to a local area network (LAN)	26
Navigating using the keyboard, touch gestures and pointing devices	28
Using pointing devices	28
Setting pointing device preferences	28
Using the TouchPad and gestures	28
Tapping	28
Scrolling	29
2-finger pinch zoom	29
2-finger click	30
Using the keyboard	30
Identifying the action keys and hot keys	31
Multimedia	33
Using the media activity controls	33
Audio	33
Connecting speakers	33
Adjusting the volume	33
Connecting headphones and microphones	34
Checking audio functions on the computer	34
Webcam (select models only)	34
Video	35
VGA	36
HDMI (select models only)	36
Configuring audio for HDMI	37
Discovering and connecting wired displays using MultiStream Transport	37
Power management	39
Shutting down the computer	39
Setting power options	39
Using power-saving states	39
Initiating and exiting Sleep	40
Using the power meter and power settings	40
Setting password protection on wakeup	40
Using battery power	41
Displaying the remaining battery charge	41
Maximizing battery discharge time	41
Managing low battery levels	41
Identifying low battery levels	41
Resolving a low battery level	42
Resolving a low battery level when external power is available	42
Resolving a low battery level when no power source is available	42
Inserting or removing the battery	42
Inserting a battery	42
Removing a battery	42
Conserving battery power	43
Storing a user-replaceable battery (select models only)	43
Disposing of a user-replaceable battery (select models only)	43
Replacing a user-replaceable battery (select models only)	44
Using external AC power	44
Testing an AC adapter	44
Switchable graphics/dual graphics (select models only)	45
Using switchable graphics (select models only)	45
Using dual graphics (select models only)	45
External cards and devices	47
Using memory card readers (select models only)	47
Inserting a memory card	47
Removing a memory card	47
Using a USB device	48
Connecting a USB device	49
Removing a USB device	49
Using optional external devices	49
Drives	51
Handling drives	51
Using hard drives	51
Security	52
Protecting the computer	52
Using passwords	52
Setting passwords in Windows	53
Setting passwords in Computer Setup	54
Managing a BIOS administrator password	54
Entering a BIOS administrator password	55
Using firewall software	55
Installing an optional security cable	55
Maintenance	57
Cleaning your computer	57
Cleaning procedures	57
Cleaning the display (All-in-Ones or Notebooks)	57
Cleaning the sides or cover	57
Cleaning the TouchPad, keyboard, or mouse	58
Updating programs and drivers	58
Using SoftPaq Download Manager	58
Computer Setup (BIOS) and MultiBoot	59
Using Computer Setup	59
Starting Computer Setup	59
Navigating and selecting in Computer Setup	59
Restoring factory settings in Computer Setup	60
Updating the BIOS	61
Determining the BIOS version	61
Downloading a BIOS update	61
Using MultiBoot	62
About the boot device order	62
Choosing MultiBoot preferences	62
Setting a new boot order in Computer Setup	62
Dynamically choosing a boot device using the f9 prompt	63
Setting a MultiBoot Express prompt	63
Entering MultiBoot Express preferences	63
Using HP Sure Start (select models only)	64
Support	65
Contacting support	65
Labels	66
Specifications	67
Input power	67
Operating environment	67
Accessibility	68
Supported assistive technologies	68
Contacting support	68
Traveling with or shipping your computer	69
Troubleshooting	70
Troubleshooting resources	70
Resolving issues	70
The computer is unable to start up	70
The computer screen is blank	70
Software is functioning abnormally	71
The computer is on but not responding	71
The computer is unusually warm	71
An external device is not working	71
The wireless network connection is not working	71
A movie is not visible on an external display	72
Electrostatic discharge	73

Match case Limit results 1 per page

Troubleshooting

Troubleshooting resources

●

Contact HP support. For U.S. support, go to

http://www.hp.com/

go/contactHP

. For worldwide support,

go to

http://welcome.hp.com/

country/us/en/wwcontact_us.html

Choose from the following types of support:

◦

Chat online with an HP technician.

NOTE:

When chat is not available in a particular language, it is available in English.

◦

Find HP support worldwide telephone numbers.

◦

Locate an HP service center.

Resolving issues

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 Sleep state. To exit Sleep, briefly press the power button. Sleep is an

energy-saving feature that turns off the display. Sleep 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

Battery

icon on the Windows desktop 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 B

Troubleshooting