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Blank Screen Problem

Discussion in 'Hardware' started by SKreme, Dec 22, 2012.

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  1. SKreme

    SKreme Thread Starter

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    One day the screen connected to my desktop would not work. When I turn on the computer, it sounds like it is powering up and the LED lights blink but nothing appears on the screen. I tried multiple screens and cables, tried the screen both plugged into the video card and plugged into the motherboard itself (which has built in VGA/DVI). Finally, I tried swapping out the motherboard for a new one. Same problem remains. Anyone have an idea what the problem would be? Is the issue the processor?

    EDIT: To clarify, the screen works fine when plugged into another computer so it is clearly the PC that is a problem, not the monitor.
     
  2. captainron276

    captainron276

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    What kind of PSU do you have in that computer?
     
  3. SKreme

    SKreme Thread Starter

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  4. SKreme

    SKreme Thread Starter

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    The power supply did sound like it was on and working.
     
  5. captainron276

    captainron276

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    How long have you had this case?
     
  6. captainron276

    captainron276

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  7. SKreme

    SKreme Thread Starter

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    I've had the case and PSU for a while, but why would it be the PSU if the power supply sounds like it is on? Could it still be the PSU?
     
  8. captainron276

    captainron276

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    Yes, it could still be the PSU. Do you have a known good PSU you can borrow to check out your system?
     
  9. SKreme

    SKreme Thread Starter

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    I should have an extra somewhere... Need to go dig it up.
     
  10. captainron276

    captainron276

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    The reason I asked you the age of that case is it does have a 3 year warranty which should include that PSU.
     
  11. SKreme

    SKreme Thread Starter

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    I'm past 3 years. I think it's closer to 4 at this point.
     
  12. empty213

    empty213

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    Run memtest86+ on all your RAM sticks to make sure it's not your RAM. if it passes then good, if it has errors then it is probably a faulty RAM, or RAM that became faulty over the years.
     
  13. SKreme

    SKreme Thread Starter

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    Turns out the power supply I had sitting around does not support SATA or the four pin power for CPU... Must have been from a really old machine. So I don't have any way to test if it was the power supply without buying a new one. Nor do I know how to test the RAM... How do I run a test on them if the computer doesn't show anything on the screen. Any tips would be appreciated.
     
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