HP Dv7-1245dx Support Question
HP Dv7-1245dx Support Question
Find answers below for this question about HP Dv7-1245dx - Pavilion Entertainment - Turion X2 2.1 GHz.Need a HP Dv7-1245dx manual? We have 26 online manuals for this item!
Question posted by gaxra on June 5th, 2014
Dv7-1245dx Nb231ua Power Flashes But Wont Turn On
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Current Answers
Answer #1: Posted by freginold on June 6th, 2014 8:04 PM
freginold
Member since:
December 20th, 2011 Points: 23,253,885
Member since:
December 20th, 2011 Points: 23,253,885
Usually when a laptop won't power on, it's because of one of four things: the battery, the battery charger/AC adapter, the power board/battery charging board (if the laptop has one), or themotherboard.
You can attempt to rule out the battery by attaching the AC adapter and trying to turn the laptop on. If the laptop turns on when on AC power but won't turn on with the battery, then one of two things is happening: either the battery is bad, or the charger is bad and the battery has run down. If the laptop won't turn on with or without the AC adapter plugged in, then the battery is not the problem. If your AC adapter has an LED on it, you can often tell if the adapter isn't working because the LED won't light up. (However, just because the LED does come on doesn't mean the adapter is working as it should.)
If it doesn't seem to be either the charger/adapter or the battery, then you're probably looking at either the power board or motherboard. If you are comfortable taking the laptop apart, you might want to try replacing the power board, which is the board that the charger plugs into. Amazon.com sells power boards (also sometimes called power jack boards) for many laptops for between $15 and $30.
The motherboard is a more expensive option to replace, so a good rule of thumb is to try the less expensive parts first. If it still won't power on, you may have a bad motherboard, in which case it might be cheaper to get a new laptop than have the motherboard repaired or replaced.
You can attempt to rule out the battery by attaching the AC adapter and trying to turn the laptop on. If the laptop turns on when on AC power but won't turn on with the battery, then one of two things is happening: either the battery is bad, or the charger is bad and the battery has run down. If the laptop won't turn on with or without the AC adapter plugged in, then the battery is not the problem. If your AC adapter has an LED on it, you can often tell if the adapter isn't working because the LED won't light up. (However, just because the LED does come on doesn't mean the adapter is working as it should.)
If it doesn't seem to be either the charger/adapter or the battery, then you're probably looking at either the power board or motherboard. If you are comfortable taking the laptop apart, you might want to try replacing the power board, which is the board that the charger plugs into. Amazon.com sells power boards (also sometimes called power jack boards) for many laptops for between $15 and $30.
The motherboard is a more expensive option to replace, so a good rule of thumb is to try the less expensive parts first. If it still won't power on, you may have a bad motherboard, in which case it might be cheaper to get a new laptop than have the motherboard repaired or replaced.
Related HP Dv7-1245dx Manual Pages
Security - Window Vista and Windows 7 - Page 9
...Setup Utility contents.
After you exit Sleep or Hibernation. Power-on password*
CAUTION: If you forget your power-on password, you cannot turn on or restart the computer, or exit Hibernation.
...Utility. After this password is set , it in the Windows Log On dialog box before you turn on or restart the computer, or exit Hibernation.
Setting passwords in Windows 3
Exit QuickLock by...
Security - Window Vista and Windows 7 - Page 10
... is displayed in the lower-left corner of the computer. After this password, follow these steps: 1. Open the Setup Utility by turning on or restarting the computer.
Power-on password
Your power-on or restart the computer, or exit Hibernation. Managing an administrator password
To set an administrator password, type your password in...
Security - Window Vista and Windows 7 - Page 11
... - While the "Press the ESC key for
Startup Menu" message is displayed, press f10. 2. Entering a power-on or restarting the computer. Your changes go into effect when the computer restarts. Open the Setup Utility by turning on password
At the Enter Password prompt, type your changes and exit the Setup Utility, use...
Software Update, Backup and Recovery - Windows Vista - Page 6
...the "Press the ESC key for
Startup Menu" message is displayed in Windows) or by turning on battery power, docked in an optional docking device, or connected to the hard drive.
2 Updating ... BIOS update: 1. Follow the instructions on the screen to identify your selection to an optional power source. To exit the Setup Utility, use the Setup Utility for displaying BIOS information: 1. Follow...
Wireless (Select Models Only) - Windows Vista - Page 10
...Using wireless devices (select models only) If the wireless light is blue, at the factory, you turn off . All of the wireless devices on your wireless devices, not the status of your computer ...devices can use the wireless button to turn on or turn on the computer. If the wireless light is off . The wireless light indicates the overall power state of individual devices. Using the wireless...
Wireless (Select Models Only) - Windows Vista - Page 19
... connectors, use minimal force when inserting a SIM. Remove the battery. 7. NOTE: HP Mobile Broadband will be disabled if the battery is firmly seated.
8. Reconnect external power. 10. Turn on by pressing the power button. Inserting a SIM
CAUTION: To prevent damage to the computer. 4. Then shut down the computer. Replace the battery.
Unplug the...
Wireless (Select Models Only) - Windows Vista - Page 20
... off or in on the SIM (1), and then remove it from the AC outlet. 5. Reconnect external power. 10. Reconnect external devices. 11. Unplug the power cord from the slot (2).
8. Turn on by pressing the power button. Press in Hibernation, turn the
computer on the computer.
14 Chapter 3 Using HP Mobile Broadband (select models only) If...
Drives - Windows Vista - Page 7
CAUTION: To reduce the risk of power, be sure that check carry-on luggage, such as conveyor belts, use excessive force when inserting a drive ...drive from a drive before handling drives. Refer to magnetic fields. If a drive must be mailed, place the drive in Hibernation, turn the computer on the keyboard or move the computer while the optical drive is off, in the Sleep state, or in a ...
Drives - Windows Vista - Page 22
... away from the AC outlet. 5. If you , loosen the 6 hard drive cover screws (1). 8. Disconnect all external devices connected to the computer. 4. Turn the computer upside down on by pressing the power button. Save your work. 2. Then shut down the computer and close the display. 3. To remove the hard drive: 1. With the hard...
Drives - Windows Vista - Page 20
...are not sure whether the computer is on, in the Sleep state, or in Hibernation, turn the computer on by pressing the power button. If you , loosen the 6 hard drive cover screws (1). 8. Then shut down...16 Chapter 4 Replacing the hard drive Remove the battery from the AC outlet. 5. Unplug the power cord from the computer. 7. To remove the hard drive: 1. Save your work. 2. Lift the hard ...
Memory Modules - Windows Vista - Page 7
... computer. 4. Save your work. 2.
Turn the computer upside down on the bottom of the computer can damage electronic components. Unplug the power cord from the computer. 7. Loosen the...computer and close the display. Disconnect all external devices connected to the equipment, unplug the power cord and remove all batteries before installing a memory module. Remove the battery from the ...
Memory Modules - Windows Vista - Page 10
Turn on the computer.
4 Adding or replacing a memory module Reconnect external power and external devices. 16. 15.
Notebook Tour - Windows VIsta - Page 11
...has stopped responding and Windows® shutdown procedures are ineffective, press and hold the power button for models with QuickPlay
preinstalled). ● Launches the DVDPlay program (for ... reader
Component (1) Speakers (2) (2) Power button*
(3) Media button
Description
Produce sound. ● When the computer is off, press the button briefly to turn on
the computer. ● When...
Notebook Tour - Windows VIsta - Page 13
... external power source, the light is turned off when all batteries in Hibernation.
● On: A battery is charging.
● Blinking: A battery that is the only available power source ..., or monaural microphone.
(6) Audio-out (headphone) jacks (2)
Produce sound when connected to optional powered stereo speakers, headphones, ear buds, a headset, or television audio. When the battery reaches a...
Notebook Tour - Windows VIsta - Page 18
On: The integrated webcam is on. Records video and captures still photographs.
12 Chapter 2 Components Display components
Component (1) Internal display switch
(2) Internal microphones (2) (3) Integrated webcam light (4) Integrated webcam
Description
Turns off the display and initiates Sleep if the display is closed while the power is in use. Record sound.
Notebook Tour - Windows VIsta - Page 19
... used to decrease speaker volume. Blinking: The hard drive or optical drive is not plugged into an external power source, the light is turned off when all batteries in the computer are turned off. Lights
Component (1) Power lights* (2)
(2) Battery light
(3) Drive light (4) Caps lock light (5) Volume mute light (6) Volume down light (7) Volume up light...
Notebook Tour - Windows Vista - Page 10
...: The computer is off . If the computer is not plugged into an external power source, the light is turned off until the battery reaches a low battery level.
● Blinking: The hard drive or optical drive is plugged into an external power source, the light stays off when all batteries in Hibernation.
● On...
Notebook Tour - Windows Vista - Page 11
... device and/or a Bluetooth® device, is turned on.
● Amber: All wireless devices are turned off , press the button briefly to turn on
the computer. ● When the computer is...
to exit Hibernation.
Top components 5 Buttons, speakers and fingerprint reader
Component (1) Speakers (2) (2) Power button*
Description Produce sound. ● When the computer is off .
(9) Num lock light
...
HP Pavilion dv7 Entertainment PC - Maintenance and Service Guide - Page 51
...Turion Ultra ZM80 2.10-GHz processor (includes replacement thermal material) AMD Turion Ultra ZM82 2.20-GHz processor (includes replacement thermal material) AMD Turion Ultra ZM86 2.40-GHz processor (includes replacement thermal material) AMD Athlon QL60 1.90-GHz processor (includes replacement thermal material) AMD Turion RM70 2.00-GHz...with AMD processors (includes power button board and cable and...
HP Pavilion dv7 Entertainment PC - Maintenance and Service Guide - Page 119
...turn the
computer on page 57) c. If you hear a click. Remove the battery (see Optical drive on , and then shut it down the computer.
Display assembly (see Keyboard on page 85) h. Component replacement procedures 109 Keyboard (see Display assembly on page 54). 5. Description AMD Turion Ultra ZM86 2.40-GHz processor AMD Turion... power from the computer by first unplugging the power ...
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