Question about HP Pavilion dv9000z Notebook

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HP dv9000 Laptop screen started flashing and then went black on my laptop (hp dv 9000). Took out harddrive and everything is still on it but when i hook up an external monitor it says operating system not found

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 Hello jarkk, I believe your problem is with your backlight inverter. the hard drive should be installed for this process of checking it on an external monitor. with the hard drive removed it will not boot to the operating system. with the drive in, use the external monitor. if the monitor works when plugged into the external monitor plug, this will eliminate a bad video card. if the screen is still black on the laptop screen, replace your backlight inverter. the last case cenario is to make sure your backlights are not burnt out. 

Posted on Sep 18, 2008

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