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A Samsung Series 3 PC, the NP300E5C-A09US is a 15'' laptop with a 1366x768 screen resolution. It is a great choice for anyone looking for a lightweight, yet powerful portable computer.

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Black Screen - "Mainboard Problem". Please help me out!


please help me fix this laptop.

​after power on everything works but nothing shows up. some times after 10 or more power on finally it gives the display. but after a restart it dies again.

i have tried this:

-connected laptop to ​a monitor through VGA output, but nothing showed up.

-i removed ati graphic chip from the main board using hot air gun in order to force the laptop to use cpu graphic. and still nothing shows up.

-cmos battery gives 3v properly.

-i replaced cpu, ram and hard disk.

​and now out of hope i'm seeking international help and advise.​ - Please help me out!

i have a multimeter, can someone tell me where should i look???

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I don't know what to tell you, it sounds like you've done everything I could think of.

But, there is one on ebay. You could swap the hard drive, or use an Ada to usb adaptor.

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Saman Dinarvand sarà eternamente grato.
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