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Monitor says "no video input"

By LadyLing
Apr 10, 2013
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  1. I have a problem with my PC. It won't "wake up"! after sleep mode. :eek:
    I've tried a few things, but nothing has worked.

    So I would be really happy to get some help! :)

    Yesterday I accidentally put my computer into Sleep Mode,
    Even though I meant to turn it off entirely.

    Now 2 days have passed and I've still NOT been able to get it working again.

    When I press the power button, some lights turn on and things start spinning.

    The monitor switches on, then says "No Video Input", "Returning to Sleep Mode".

    I've opened the side of my case, so I can verify that things do indeed turned on;
    at least to some extent. The screen however, remains blank.

    There are also no beeps of any kind either. The fans are all spinning properly.
    The yellow light on the motherboard is lighted.

    However, the blue light on the power button isn't blinking as it usually does.
    The lights on the keyboard, (I.e. Numlock) isn't lighted up as well.

    My computer specs are stated in the image attached.

    My monitor is a Philips, and I know it's working properly because I hooked it up with my laptop to check.

    I've tried :( :
    - Restarting, many, many times.
    - Unplugging, and then holding the power button for 30 secs - 1 minute as some forums suggested.
    - Unplugging the power cords and plugging it back again.
    - Turning off all the switches, and leaving it for one night to cool.
    - Cleaning the entire inner case.
    - Searching the forum for similar cases.

    But nothing is working. :eek:

    Tonight, I'll be unplugging everything and leaving it on to cool again.

    HELP?

    [​IMG]

    I need my daily fix.

    I really appreciate your time and advice!
    Thank you super duper much in advance, kind strangers!!!! xo
     

    Attached Files:

  2. Tmagic650

    Tmagic650 TS Ambassador Posts: 21,065   +169

    Start up the computer and keep pressing F8, until you hopefully see if it brings up a black screen with white lettering. Select VGA Mode and restart...
     
  3. LadyLing

    LadyLing TS Rookie Topic Starter

    I tried your suggestion, but the same thing happens.
    The 3 fans inside the case spins, and a yellow light on the motherboard lights up.

    The lights on the keyboard blinks once then nothing.
    and "no video input" & "entering sleep mode" appears on the monitor and goes blank.

    Do you think it's my graphic's card problem?
     
  4. Tmagic650

    Tmagic650 TS Ambassador Posts: 21,065   +169

    Is that "yellow" light suppose to be green normally? Could be a power supply failure
     
  5. LadyLing

    LadyLing TS Rookie Topic Starter

    Ehhh. I've never noticed if it was green before... :(

    However, I also noticed that the blue lights on the power button isn't blinking as it should.
    *sigh*.

    I do wonder if it's the graphics card problem or something else entirely... :(
     
  6. Tmagic650

    Tmagic650 TS Ambassador Posts: 21,065   +169

    "the power button isn't blinking as it should" ...This indicates a power supply failure. Just because you have some lights, doesn't mean that the power supply is good
     
  7. LadyLing

    LadyLing TS Rookie Topic Starter

    Is there any easy way to fix this?

    Thank you for your prompt replies too!
     
  8. Tmagic650

    Tmagic650 TS Ambassador Posts: 21,065   +169

    You need to have the power supply replaced
     
  9. LadyLing

    LadyLing TS Rookie Topic Starter

    Welll.. I did some CMOS reset. and blue light is back on next to the power button. xD
    GPU perhaps...
     
  10. Tmagic650

    Tmagic650 TS Ambassador Posts: 21,065   +169

    So is the motherboard light still yellow? Try another power supply
     
  11. LadyLing

    LadyLing TS Rookie Topic Starter

    Thank you so much for your suggestions :)

    I gave up and called for Tech Support. He came to my place and found the problem.
    It was caused by the RAM. Said it was a memory clot. Guess RAM suffered a stroke.
    So I got a new RAM replacement.

    But I'm asking him to come back and check again because I also got blue screen error earlier. BWAHHH.

    anyway, thank you so much!
     
     
  12. Tmagic650

    Tmagic650 TS Ambassador Posts: 21,065   +169

    You are very welcome :)
     
  13. alisje

    alisje TS Rookie

    I had this same problem. I removed my new graphics card and switched my HDMI cable (which may have been damaged) for a VGA. The computer now works. Since I changed two variables I don't know which one it was, but I hope this info might help someone.
     


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