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PC turn on, but no graphic on monitor

Discussion in 'General Hardware' started by camoxiong, Oct 5, 2012.

  1. camoxiong

    camoxiong

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    I just recently did a cable management and changed my thermal paste on my CPU. I have connected all the cables to the mobo, HDDs, and etc. When I turn on my pc, everything start normally, but it doesn't show anything on the monitor. I tired using on board video and still the same thing. What's the problem?
     
  2. Widjaja

    Widjaja

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    Try unplugging the PSU, flipping out the battery and pressing the power button to drain the system.
    reinsert the battery, plug the PSU cable back in and power on.
     
  3. micropage7

    micropage7

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    have you checked your monitor? check the cable first
    it may be loose
     
  4. camoxiong

    camoxiong

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    you mean the CMOS battery?
    I did
     
  5. camoxiong

    camoxiong

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    I did what Widjaja and still don't work
     
  6. Jetster

    Jetster

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    Power cables hook up to your GPU?
    4 Pin CPU power?
    Check all your connections
    Remember if you use your integrated GPU to change the DVI/VGA cable to the right connection
    Those are the mistakes I make
     
  7. camoxiong

    camoxiong

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    Yes, I check all my connections. I tired using my old vga cord to my video still dont work.
     
  8. TC-man

    TC-man

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    Hi,

    perhaps check with an other dedicated videocard or other monitor, rule out which one is the culprit of the problem. Also check the 'source' on the monitor via the menu on it (maybe it's set on other source?).
     
  9. camoxiong

    camoxiong

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    Oh dammit, I don't have another video card and another monitor. My old monitor just broke on me last week.
     
  10. camoxiong

    camoxiong

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    So is this the MOBO or video card problem or both?
     
  11. Widjaja

    Widjaja

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    Since you are getting no signal through on board as well, I think it would be safe to say it is not the graphics card.
    It the motherboard making any post beeps?
     
  12. camoxiong

    camoxiong

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    I don't hear any beeps from the motherboard
     
  13. Widjaja

    Widjaja

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    Pull out the ram sticks and see if it makes any beeps.
     
  14. micropage7

    micropage7

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    are sure it turn on? not shut down by it self
    if you dont move anything
    i suggest try to put the board off from the case and re test again
     
  15. camoxiong

    camoxiong

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    still no beeps
    everything power on when i pressed the power button. ok, I'll do that.
     
  16. TC-man

    TC-man

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    Hi,

    since you say you also have tried using onboard video, then does this you actually can go into the bios to switch between dedicated videocard and onboard which means you have display when you are in the bios? But you are not getting any display when you are in Windows OS?
     
  17. micropage7

    micropage7

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    no beep at all? have you tried to turn it on without ram.
    does it beep without ram? if not, your board maybe in trouble
     
  18. Widjaja

    Widjaja

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    Board or PSU since there are no beeps.
     
  19. camoxiong

    camoxiong

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    still no beeps without the ram
    no still beeps.



    So, it's my mobo?
     
  20. TC-man

    TC-man

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    But doesn't that depends whether your PC case has a built-in pc-speaker? Or does your motherboard has such built-in pc-speaker?

    Anyway, do you have display while posting the PC and in bios, or you do not have display at all, but can hear the harddrive is actually booting into windows?
     
  21. micropage7

    micropage7

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    could be
    1. your board is dead
    2. your psu that in trouble
    3. everything is ok just loose or miss cable

    personally i think is about the cable since your pc before you did cable management is fine
    if it turn on for several second, maybe you have short circuit
     
  22. camoxiong

    camoxiong

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    no display at all, all the 3 HDDs are spinning. I think it's booting without the display.
     
  23. TC-man

    TC-man

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    Perhaps try to clear cmos (I know you have removed the cmos battery) with the jumper method (JBAT1 on the motherboard) and left the jumper for while, and then remove the jumper before you go further.

    And have you tried re-seating everything, but now with less hardware/components? For example just motherboard + cpu + 1 stick ram + PSU + monitor, preferably after clearing cmos. Maybe also check on the cpu if it doesn't have a bent pin.
     
  24. Jetster

    Jetster

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    Theres no way to tell that. Pull everything and bench test the MB with one stick of ram, CPU and power supply. Thats it. Hook up a monitor to the onboard GPU Jump the power leads on the front panel header. If still no post then the board or PSU are gone. And could be both


    If you live in a dry area static could have killed it
     
  25. camoxiong

    camoxiong

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    I have tried what you say and I see no CPU pins bent
     

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