Question about HP Pavilion dv4000 Notebook

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I turn the notebook on and i have power but nothing comes up on the screen. it is a hp pavillion dv4000 im not very educated on computers but if u guide me through im sure i can do it.......thans for the help...

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Hi There,

Your laptop needs some troubleshooting and here's the fastest (and free) way to locate your issue. Get to a friend's place (or at home) where there's a regular desktop computer monitor and connect your laptop to it. Look up at the top row of "F" keys (1 thru 12) and find the one that looks like it has to do with a monitor. With your laptop connected to the external monitor, press the "fn" key in the lower left of keyboard and hold it doen while your press the monitor transfer F key above.

If your laptop's normal display shows on the big monitor, then you just have a bad sceen that needs replacement. If all is dark on both, then your video card inside the laptop has faild and a new motherboard is needed.

Kind Regards,

TheSelkie

Posted on Oct 09, 2010

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That means your backlight is going out. The fact that it's happening intermittently like that suggests that you have a faulty screen inverter (a small circuit behind the screen that converts DC power to AC, in order to light the florescent backlight).
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It sounds very much like an inverter issue. The inverter sits under the lcd screen in the screen plastics. It is replaceable, but obviously there is a danger the screen may get damaged.

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Go to this site, and it will walk you through each step to connect your particular Jabra headset with your device. Choose the headset, and then at the next page, choose your device. Moving your mouse over each step will change the picture to what you should be seeing at each step.
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hi,
if nothing(even hp logo ) is not coming on the display then please try this.
1.remove the battery and then press the power button for 30 sec.Again refix it and check.
2.If windows sound is there then this mught be the issue with display.

3.If there is no windows sound might be the issue with RAM so please get it checked.

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May 19, 2009 | HP Pavilion dv4000 Notebook

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HP Pavillion dv4000 cto won't start


Hey,

if the computer doesn't beep at all, and noting comes on the screen.

Lets do this first,
Remote the ram from the computer, start up without ram.
turn the laptop off and unplug, did you hear beeps?

Place the other memory module back in and try starting up.
if the computer starts up then all is ok you can plug in the other ram and start up again. if it doesn't start up then repeat the previous process.

if this has no effect and you don't get any beeps from the computer the motherboard most likely has a problem.

I would suggest you call hp or your dealer to check your warranty.
If you are outside of warranty the repairs will cost you.

Discuss repairs with hp and see if its worth it.


Let me know if you need anything else.


Thanks,
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I have HP DV6000, I used it without the battery. it worked until I was able to purchase a new battery. It might work on the HP dv4000...

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When you get to the normal/safe mode screen, select enable VGA. This will boot your computer using the standard 640 x 480 default. Once you are in windows, then you can go into the display properties and change it to a resolution that is compatible with your screen and computer.

Thanks and pelase take a moment to rate as fixya.

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No I work on HP's all day, it is nothing to do with the OS or the BIOS. It is a problem with the motherboard fan control, in other words the mainboard is bad even with the latest BIOS update. The CPU is getting too hot, as this happens the CPU gets damaged because the Fox board does not have a temp sensor. So periodically the voltage make kick on the cpu but for the most part the computer will never work the same. The longest I got this dv4000 to run was just under 4 hours with no apps running.
Total overhaul replace board, processor, and possibly the fan.

~Hope this answers your question.

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