Question about HP Pavilion dv9810US Notebook

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My hp DV9810US Laptop computer displays a blank screen (black) when powering up. All led lights appear to function normally. The hdd is heard spinning and I can hear the windows jingle after a few minutes after powering up. Sometimes it takes 4 or 5 trys (turning on and off power) before the screen finally displays properly. Any help would be appreciated.

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  • HP Master
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Your HP laptop could have a backlight problem. This could be caused by a faulty inverter or a faulty CCFL lamp. please click on this link and follow my instructions to determine the exact fault and possible fix :-
http://www.fixya.com/support/r3598095-faulty_laptop_lcd_screen

Posted on Jul 11, 2010

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Posted on Jan 02, 2017

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Blank screen


If your laptop appears to boot up and the hard disk LEDflashes, then the problem is probably a back light fault. This can be a faultyinverter or a faulty CCFL lamp. Please click on this link and follow myinstructions to identify the fault and possible fix :- http://www.fixya.com/support/r3598095-faulty_laptop_lcd_screen

Jul 03, 2012 | Toshiba Satellite L505D-LS5010 Notebook

2 Answers

Does not boot up, fans start, internet plugs light, clicks on and off.....seems this is a common problem for these machines, what is the fix?


Instructions
  1. When you press the Power button to start the boot process, the LED lights glow while the computer verifies that there is sufficient electrical power to activate the hardware.

    Effect & Solution: When you press the power button, the LED lights on the computer do not glow or the LEDs blink briefly and then stop. There is no sound of the fan or hard drive spinning, and the screen remains blank. The computer will not start if there is insufficient battery or AC adapter power.
  2. The BIOS queries various hardware components used for the startup boot process.

    Effect & Solution: When you press the power button, the LEDs glow but there is no fan or hard drive sound. The LEDs may glow briefly and then go out.

    Or

    The LED lights blink, stop, and then blink a second or third time, but there is no sound from the computer and the screen remains blank. The sequence of the blinking lights indicates a specific error code.

    Or

    A series of beeping tones is heard. The sequence of beeping tones indicate a specific error code.

    If a hardware component has recently been replaced, or if the PC has been jarred or shaken, there may be a loose connection to the memory chips or hard drive which prevents the computer from starting.
  3. The BIOS loads the basic input (keyboard) and output (advanced LEDs / display screen / boot drives) devices into memory.

    Effect & Solution: When you press the power button, the LEDs glow, the fan or hard drive sounds, are heard, but then the boot process stops and a black screen - with an error message - displays.

    The boot check has detected a communication error or conflict with a hardware component that must be corrected.
  4. The BIOS loads the Windows operating system and starts the services that allow low-level control of all of the background operations.

    Effect & Solution: When you press the power button, the LEDs glow, the fan or hard drive sounds, are heard, the HP or Compaq Logo displays on a black screen, but then the boot process stops and a blue screen - with an error message - displays.

    The boot check has detected a hardware driver error or a software conflict that must be corrected.
  5. Control is transferred to the Windows loader to initiate the display of the advanced settings in the Windows environment.

    The Windows logo displays during this step.

    Effect & Solution: When you press the power button, the computer performs all the steps in the boot process, but after the Windows Logo displays, the moving Windows progress bar or the rotating cursor stops moving and the boot process stops.

    An error message may display on a screen with the Windows logo. In some instances, there is no specific error message.

    Or

    A black screen appears and the computer attempts to restart.

    The Windows self-check has detected a software conflict that must be corrected.

Jan 09, 2011 | Gateway GT4016 Desktop PC

1 Answer

HP Pavillion DV2000 (dv2415)laptop w AMD Turion64X2, running Windows Vista. The problem appears to be a power up issue where, when the laptop is initially turned on, all the various lighted buttons around...


We can troubleshoot the Overheat issue but first we need to turn it on. Perform following steps and check if you can see the diplay on screen.

1. Disconnect the AC Adapter.
2. Remove the Battery.
3. Hold the Power button down for 30 seconds to 1 minute.
4. Reconnect the AC adapter and do NOT connect the battery now.
5. Turn on the Notebook power.

If the Notebook power up and shows you display, then proceed with further steps (or you can connect a desktop monitor to check if its displaying. Press Fn+F4 to toggle the display on external monitor)

The notebook may overheat and make noise or stop working due to the following conditions:
1. Due to incorrect power supply from the AC adapter.
2. If the Fans/Heat Sink are not working properly.
3. If the power management and BIOS settings are messed up in the Notebook.
4. Finally due to other components on the system board.

To resolve this problem with overheating, perform following steps.

I check your Laptop and see that your Laptop product number is "GA534UA#ABA" with Windows® Vista Home Premium pre-installed, if you are using the same, process with following steps.

Step 1: Reset the BIOS to factory defaults:
1. Click Start, Turn Off Computer, Restart.
2. When the HP logo appears, press F10 to enter BIOS Setup.
3. Press F9 when you are in BIOS Utility to load the BIOS to default. Click YES. Then press F10 to Save & Exit.

Step 2:Re-install Power Management in Vista
1. Press Windows key + R
2. Type devmgmt.msc and press enter.
3. Click the plus (+) sign next to System Devices.
4. Right-click the ACPI Fixed Features button and select Uninstall.
5. Restart the system.
On restarting the system, Windows will automatically detect and install Power Management on the computer.

Step 3: Installing an update for BIOS:
Caution: Install this BIOS only if you are using pre-installed operating system with above mentioned Product number.

WinFlash for HP Notebook System BIOS (for Notebooks with AMD Processors):
ftp://ftp.hp.com/pub/softpaq/sp43501-44000/sp43666.exe

Step 4: AirVent cleaning:
Reducing Heat and Fan Noise by Cleaning Air Vents:
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01657439&cc=us&dlc=en&lc=en&jumpid=reg_R1002_USEN

In case there is no display, remove and reseat the Hard Disk and RAM and check for the issue. If display comes up after removing and reseating the RAM and HDD, then you need to follow the above steps again.

Service Manual to remove reseat HDD and RAM:
http://h10032.www1.hp.com/ctg/Manual/c01035657.pdf
Memory Module Page: 127 of 310
NOTE: If you have more than one memory module, you should test them individually to determine if one or both of them are faulty. Insert each module separately, then turn on the notebook to determine if the inserted module is working. Once you have determined which memory module is faulty, you can replace the faulty module and reseat the working module.

Hard Disk Page: 121 of 310

Contact HP at www.hp.com/support/chat for further assistance.

Aug 22, 2010 | HP Pavilion dv2415nr Laptop

1 Answer

Computer will not start up on power up. Computer does a system check with all L.E.D. lights, cooling fan starts, empty cd drive bay does a system check. The computer hard drive will not start and the...


notebooks, battery out first, just take it out the leds mean zero.
there is no LED that can tell you a battery is ok,

did you?
if that fails.
next is what, BIOS
get the BIOS screens up. (my guess its DEAD) not even text or HP logo.
if not the pull hdd,dvd and all ram but 1 stick.
and all usb jacks empty , unload it.
fails now. then the Power pack is bad
you do know packs can be, good, bad or weak right
19vdc is good, 10 not.
see?

the GOAL on ALL PC's get BIOS UP.
take no hdd , no dvd to do that. ever
once it works we can move to booting any OS>
we can boot to 5 things on my laptop, even SD,mem.
try to think this way
if the Power pack is 65w+ and 19v
then remove all possible shorted devices from the PC.
strip it down. if it runs now, (means BIOS wakes up an screen)
test 2 on all LT
is the rear VGA jack will run a external screen if the internal is suspected.

black screens only can be CCFL dead.
if it has that.
i cant hear you hdd spin/
nor see the eject work work on the dvd
if the PC self shuts off, that means the power supply has issues
the Power pack bad , the MOBO regulators are in overload
and shut it down (called shorts on devices)
this is normal action on any regulator..... normal for shorts./

Jul 20, 2017 | HP Pavilion dv6000z Notebook

2 Answers

BLANK SCREEN ON MY hp compaq nx9420. my laptop was working fine and then when restarted I got a blank screen. The power LED and cahrging LED both light up but screen remains blank. have changed the video...


Did it display any video at all with boot options or HP logo? Any POST test or beeps after you started the laptop?
Try removing the power ac adapter and battery. then only boot it up with just the AC adapter (no battery).
Good Luck, JAJ

Mar 30, 2010 | HP Compaq nx9420 Notebook

1 Answer

Pavillion dv2025nr Blank Screen, but all LEDs on.


VGA card problem..that's what tech told me & changed it 3 times...but still laptop goes off.(exactly like u described)...they finally said need new motherboard??? so VGA will not do this again!!!! I don't know, If I change motherboard...will this happen again...is it worth it??? My pavillion dv 2000 is only 1.5 years old..was expensive??/

Oct 01, 2009 | HP Pavilion dv2000t 14.1" Notebook Laptop...

1 Answer

Blank LCD laptop does turn on


I beleave you may need to press the function key as well as the F-4 key to bring up an external monitor.
Try holding down the Function key and tapping the F-4 key while watching the screen on the external monitor.
Is your unit within warranty, HP offer an extended 1 year on top of your normal 1 year warranty for video and motherboard issues.
Hope this has helped.

Sep 27, 2009 | HP Compaq Presario CQ50-210US Notebook

2 Answers

MY NOTEBOOK WILL NOT BOOT UP I HAVE A BLACK SCREEN THE BLUE LED LIGHT LIGHT UP BUT THATS IT I HEARD THERE WAS A RECALL ON SOME BATTERYS CAN THAT BE THE PROBLEM?


I have been successful with the following procedure for an HP laptop with a blank (black) screen
1. power off and remove battery
2. press start button for about 35-45 seconds
3. attach power cord (with battery still out)
4. start computer
5. reinstall battery
I have no idea why the problem occurs or why this seems to fix it but it does.

Aug 02, 2009 | HP Pavilion dv6000z Notebook

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