Question about HP Pavilion dv9000z Notebook
Dv9720 had been having a display issue. Used external display. Suddenly, laptop display comes back and works fine for nearly a month. This morning, tried to power the laptop on. Lights come on, fan comes on, DVD check is made, then shuts off. It continues to repeat this process until I force it off. Tried various methods to get it to turn on. (Reseated memory, held down power button with battery removed, etc...)
You first need to check the Fan and Heatsink Assembly.. Clean the heatsink Fins and Fanblades..
Then .. The Graphics Chip will need to be "ReFlowed".. Using Either Infrared or a Heat Gun...
Your Issue Is The Nvidia Chip... It Makes it's connection to the motherboard using solder balls on the underside of the chip...(it's located right next to the CPU).. Due to Thermal Breakdown - the Chip Can Lose Connection to Certain Areas of the ball grid array... Performing A Chip Reflow Heats the chip and reconnects the faulty areas.. Thus stopping the shutdown issues and fixing your video..
Posted on Nov 15, 2009
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Posted on Jan 02, 2017
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