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No Signal Detected....

Discussion in 'Windows 7' started by Qrypton, Dec 29, 2010.

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  1. Qrypton

    Qrypton Thread Starter

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    I am getting this error more and more often,usually when I plug in anything into usb ports,the screen goes black and NO SIGNAL DETECTED is shown on screen.
    Sometimes when I just start the pc this happens after windows loading screen,and by hearing the sound of windows loading I can say that the windows loaded fine only display is not shown.
    Also happens when
    -switching tabs while playing a game
    -when plugging in speakers
    -when I disable my network adapter

    This error is really annoying and bugging me,I have to restart my pc directly whenever this shows up,and I often lose my work because of that.

    Please help,my pc specs:
    Dual Core E5200 @ 2.50 Ghz
    160gb IDE hdd
    Nvidia 8600 GTS
    2 GB CORSAIR DHX DDR2
    Windows 7 Ultimate Edition (32 Bit)
     
  2. Qrypton

    Qrypton Thread Starter

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    Can anyone please help?
     
  3. Frank4d

    Frank4d Retired Trusted Advisor

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    If the screen goes black immediately when you plug in a USB device or speakers, do you notice a static shock or spark?
     
  4. Qrypton

    Qrypton Thread Starter

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    Never saw a spark,but sometimes I hear sounds of Plugging and unplugging,like something is getting plugged and unplugged,hear those sounds for first few seconds and then its just black screen...
     
  5. Gizmoto

    Gizmoto

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    Dec 31, 2010
    Messages:
    232
    Look at the Video card see if thir are any wires loose or parts braking or borken and thir could be a power shortage N=what your computer Need Power Wise U=what you Give it(N is say 650W U 600W)
     
  6. Qrypton

    Qrypton Thread Starter

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    Video card is fitted fine,and how to check how much power my computer needs?

    thank you for replying.

    EDIT: I checked it with Asus power supply calculator and my computer needs around 250 watt where as my power supply is supplying 460 watts.I have coolermaster powersupply
     
  7. Gizmoto

    Gizmoto

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    You are welcome I'm just trying to help. Good and i like the Power supply, Look at the cord that comes from the monitor is it broken in any way any were. and look at the Monitor could the the insides be loose.
     
  8. Qrypton

    Qrypton Thread Starter

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    I checked the cord,its fine,and lcd looks fine too..

    I removed my video card then started computer and tried to do every possible thing that gives me No Signal Detected,and I didn't get the error :| So I am thinking that it could be my video card that got faulty?
     
  9. Gizmoto

    Gizmoto

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    Sorry about you video card man. thanks for leting me help you.
     
  10. davehc

    davehc Retired Trusted Advisor

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    First Name:
    David
    I doubt it is the card. No signal detect would point to a monitor, or monitor connection problem. As it worked without the card in??, I would have a look around where the monitor cable is plugged in to the card. Do you have a spare monitor cable you could try?
     
  11. Qrypton

    Qrypton Thread Starter

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    Messages:
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    Yeah I don't think its the card because as I continued using my computer without video card,I could hear the same unplugging/plugging sound at some times,and see the screen flashing(like it does before no signal detected),although I didn't get no signal detected but there were signs that could tell me that its not the video card... I am totally confused now....
    I do have a spare cable,I will try using that and see if it works

    EDIT: Its confirmed,its not video card,I got the no signal detected even without the video card
     
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