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display shows nothing but laptop working

Tags:
  • Laptops
  • Hewlett Packard
  • Display
September 27, 2014 2:18:54 PM

Hi all

I have HP dv4t laptop. laptop is working sometimes no problem. sometimes when I turn it on nothing come out on the screen. but I know laptop is working beyond. screen is blueish. Even though I cant see anything on the screen I enter my user password and hit return it goes to windows desktop with sound. then I press Alt F4 and hit return the laptop shuts down.

Ive changed inverter board but no luck. Swapped RAM slots one by one still no luck. if I Leave the laptop for couple of days then it starts fine. after few hours if I reset or shuts down then above problem start again.

what could cause this problem? just cant sort it out

cheers

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