My HP notebook turns on and off repeatedly! Please help!

[Drantini]

1. Product: HP Pavilion dv9000  (notebook)

2. Operating System: Windows 7 

3. No error message, just a black screen.

4. I haven't made any changes to it, it is pretty old, the warranty expired in 2007, but it worked fine the night before.

5. When I turn my notebook on, it turns on for about 5 secs. with a black screen and then turns off, and then turns off for about 5 secs. and continues to repeat this cycle.

[Drantini]

Please help someone!

[Daniel_Potyrala]

Hi,

Try to perform a hard reset, follow the steps below.

1. Unplug the AC adapter from the notebook PC.
2. Remove the battery from the notebook battery compartment.
3. Remove the computer from any port replicator or docking station, disconnect cables to printers or devices such as external monitors, USB memory sticks or SD cards, headset or external speakers, mouse or auxiliary keyboard, turn off WIFI and Bluetooth wireless devices.
4. Press and hold down the power button for about 15 seconds to drain any residual electrical charge from the capacitors that protect the memory.
5. Insert the battery and plug the AC adapter back into the notebook PC; but do not connect any of the peripheral devices.
6. Press the power button to turn the notebook PC back on.
7. If prompted to boot into Safe Mode or select a special type of start up, use the arrow keys to highlight Start Windows Normally , and then press the enter key.

If this will not help then usually reflowing GPU (graphic chip) solves this problem.

More details about it you may find here.

I recommend you especially post number 9 which is written by CherylG.

[MattM]

Your motherboard has failed, its a common issue with the dv2000/6000/9000 series notebooks. Your motherboard needs to be re-flowed.

HP had a recall a couple years ago for the faultly NVIDIA chipsets on the listed notebooks. There also was a class action lawsuit, but both of them have expired.

[Drantini]

It didn't work for me unfortunantly, I turned it on, and the screen was still black and it turned off and then on again.

Wished it did work.

How do I reflow the graphic card?

[Daniel_Potyrala]

More details about it you may find here.

To solve this problem you will need to visit the notebook service.

[Drantini]

I've actually tried that too, but my computer is still repeatedly turning off and on with a black screen.

[Daniel_Potyrala]

I'm quite sure that you did not because you do not know what the GPU reflow means. Check the below YouTube video:

Graphics repair service:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260595095107