Question about HP Pavilion dv9000z Notebook

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I only get all blue light on, but no video when I turn on HP Pavilion dv9700 computer. I tried to remove battery and memory, hold the power for 60 seconds and put everything back, still no luck. When I removed all memories, I got 4 beeps but still no video. Any suggestions?

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  • 101 Answers

Does the computer seem to be starting all the way to windows? You can test this by playing a CD after it has fully started. If the CD won't play then it is probably not passing the POST (power on self test). If the CD palys it may just be your LCD inverter is bad. In that case you should be able to see the logo but very faintly, right at start up.
Let me know what happens.

Posted on Nov 18, 2009

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Posted on Jan 02, 2017

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Try the following:
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Power drain would be a better solution in this case. 1.first shut down the comp 2.unplug the charger 3. remove the battery and after press and hold the power button for 60 seconds without any charger and the battery.After the 60 seconds replug the battery and the charger and turn the computer .
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Power drain would be a better solution in this case.
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Try removing the battery and using only power cord to turn the laptop on. If that fails, try turning it on without power cord, just on battery.

If none of those work, then most probable cause of your problem is motherboard. Hopefuly you are either under manufacturer warranty or you have extended warranty with your vendor where you've purchased the laptop.

If your laptop turns on on power cord, but without battery, then battery is the problem. Also, if laptop turns on when it's only on battery but it doesn't when you plug ac cord in it, then the adapter is the problem.

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