Question about E-Machines T6420 PC Desktop

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My computer turns on but the creen is totally back n it says that it have no signal as the screen werent connect it but it is

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Well it should be one of two things either you do not have a good connection to your monitor cables or you have a faulty video card. It would be the only thing that would cause this.

Posted on Dec 04, 2008

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PLEASE MAKE SURE THE PC IS OFF WHEN DOING THIS AND TURN OFF AT THE MAINS>

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might be worth connecting your hard drive 1 at a time if you have more than 1 but the one with your operating system needs to go in first.

Add the ram 1 stick at a time aswell incase it the memory thats gone faulty.

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Check your graphics card aswell if you have added one:

Everything that I have read so far points to a graphics card failure..

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your monitor is telling you it's on it's last legs..either that or your compaq has a bad video section. either is more vital than a video cable being loose.

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