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Monitor is dark when on but is flicking as though its trying to come on but fiddle about with the connection at the back of computer & it comes on ,this happens on analogue & dvi connection

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  • nigelpilk Oct 25, 2008

    have tried the monitor on a friends computer its exactly the same ,time for a new monitor i think.Thanks anyway.

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  • 94 Answers

Hi nigel

firstly i would change the lead from your graphics card to your monitor (borrow one from a friend if possible)if this solves it then fine if not, switch off your pc and disconnnect the cable from the graphics card end.open up your pc and identify you graphics (assuming its not onboard)remove retaining screw and remove from the slot(please note that some slots have a small plastic lever that needs lifting before the card is removed) After removal clean both the slot connectors with an alcohol based approved fluid and the cable pins also use a small brush of th nail vatnish type to clean the motherboard slots then replace refit the card back in its slot and reconnect
If the graphics are onboard (no card)then you only need to clean the the cable connector pins at the rear of the pc

Posted on Oct 25, 2008

  • Andy Bathgate
    Andy Bathgate Oct 25, 2008

    Endust for Electonics is a good example of a cleaning fluid

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I connect my desktop pc but monitor is totally dark. Maybe I've inadvertently set the colors off so I need to know how to work out blindly the buttons on monitor to see anything at all


If you disconnect the video cable from the back of the computer, If the monitor stays dark, and no pop up that says no video, check cable or something like that, and the power LED will stay green, if this happens, it is a bad monitor. If you get the pop up message and the LED turns orange, you are getting no video from the pc to the monitor, and pressing buttons will not fix this. It is something in the PC causing the issue. If all cables are good, and connected right.

Jun 11, 2016 | PC Desktops

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Lookbook will not power on


A computer that won't start can be both alarming and infuriating, especially if you're on a deadline or you haven't been backing up all your data (like we all tend to do). Don't panic, though-this problem often has a simple solution.

1.If your desktop computer does nothing at all when you try to start it, first check that the power cable is securely plugged in at the back of the computer as well as into a working power outlet. It's amazing how often this is the case.
2.If you're starting from a button on the keyboard, make sure the keyboard is connected to the computer.
3.If the computer is plugged into a surge protector, see if the surge protector has a reset switch that you can push. (If it doesn't have a reset switch and the problem is with the surge protector, it will need to be replaced.) Try plugging a lamp or other device into one of the surge protector's outlets to make sure it's working.
4.If you can hear the computer's fan or hard-disk drive, or if you can see indicator lights on the main unit but the monitor stays dark, make sure that the monitor is connected to a working power source, that it's turned on and that it's securely connected to the computer via the video cable.
5.If the monitor and computer have power but the computer displays a "Non-system disk or disk error" message, check to make sure you didn't leave a disk in the A: drive. If you did, eject it and restart the computer.
6.If the operating system still won't start even though the computer and monitor have power, try restarting with a Windows CD-ROM in the CD-ROM drive or, if you've got a Macintosh, with a Mac OS disc in the CD-ROM drive. (You can start a Mac from the CDROM drive by holding down the C key while starting up.)
7.If the operating system then starts, your problem is probably with the startup hard drive or with the operating system installed on it. If you can't fix the drive, you'll have to replace it. (See also How to Fix Bad Sectors on a Hard Disk and How to Recover Lost Files.)

Aug 26, 2011 | PC Desktops

1 Answer

My monitor is flicking all time


monitor is flicking all time so
unplug vga & if it shws "no signal" replace vga card ,clean ram
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Feb 19, 2011 | PC Desktops

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Computer shuts down


Please visit the below link to solve your problem.Due to some problems I was unable to send you the whole solution so please visit the site.

http://www.ehow.com/how_113600_troubleshoot-computer-wont.html

Thanks And sorry for the inconvenience.
Please rate me for this solution if it works for you.
  • Step 2 If you're starting from a button on the keyboard, make sure the keyboard is connected to the computer.

  • Read more: How to Troubleshoot a Computer That Won't Start | eHow.com http://www.ehow.com/how_113600_troubleshoot-computer-wont.html#ixzz0szt64gb5
  • Step 4 If you can hear the computer's fan or hard-disk drive, or if you can see indicator lights on the main unit but the monitor stays dark, make sure that the monitor is connected to a working power source, that it's turned on and that it's securely connected to the computer via the video cable.
  • Step 5 If the monitor and computer have power but the computer displays a "Non-system disk or disk error" message, check to make sure you didn't leave a disk in the A: drive. If you did, eject it and restart the computer.

  • Read more: How to Troubleshoot a Computer That Won't Start | eHow.com http://www.ehow.com/how_113600_troubleshoot-computer-wont.html#ixzz0szsjH6o9
  • Step 4 If you can hear the computer's fan or hard-disk drive, or if you can see indicator lights on the main unit but the monitor stays dark, make sure that the monitor is connected to a working power source, that it's turned on and that it's securely connected to the computer via the video cable.
  • Step 5 If the monitor and computer have power but the computer displays a "Non-system disk or disk error" message, check to make sure you didn't leave a disk in the A: drive. If you did, eject it and restart the computer.

  • Read more: How to Troubleshoot a Computer That Won't Start | eHow.com http://www.ehow.com/how_113600_troubleshoot-computer-wont.html#ixzz0szsjH6o9
  • Step 4 If you can hear the computer's fan or hard-disk drive, or if you can see indicator lights on the main unit but the monitor stays dark, make sure that the monitor is connected to a working power source, that it's turned on and that it's securely connected to the computer via the video cable.
  • Step 5 If the monitor and computer have power but the computer displays a "Non-system disk or disk error" message, check to make sure you didn't leave a disk in the A: drive. If you did, eject it and restart the computer.

  • Read more: How to Troubleshoot a Computer That Won't Start | eHow.com http://www.ehow.com/how_113600_troubleshoot-computer-wont.html#ixzz0szsjH6o9
  • Step 4 If you can hear the computer's fan or hard-disk drive, or if you can see indicator lights on the main unit but the monitor stays dark, make sure that the monitor is connected to a working power source, that it's turned on and that it's securely connected to the computer via the video cable.
  • Step 5 If the monitor and computer have power but the computer displays a "Non-system disk or disk error" message, check to make sure you didn't leave a disk in the A: drive. If you did, eject it and restart the computer.

  • Read more: How to Troubleshoot a Computer That Won't Start | eHow.com http://www.ehow.com/how_113600_troubleshoot-computer-wont.html#ixzz0szsjH6o9

    Jul 06, 2010 | Dell Inspiron 530 Desktop Computer

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    I have an hp pavilion dv5. When I power it on the computer starts up but the monitor doesn't come on. And then it does this series of beeps. Beep beep beep. It does that series 5 times


    Before you begin
    Check the following items before using the steps in this document:
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    •If the monitor has a detachable video cable, obtain a second monitor cable for testing purposes in case the cable is bad.
    •Disconnect all connected devices except the mouse, keyboard and monitor. This includes thumb drives and camera-type memory cards from card reader slots.
    With the devices disconnected, restart the computer. If the computer starts and the monitor now displays a picture, a device is preventing the computer from starting. Update the BIOS to resolve this issue.
    Step 1: Connect the computer to another monitor
    Connect another monitor to the computer to determine which device has the problem (the monitor or the computer). This step is very important to help you determine if the problem is coming from the computer or the monitor. If necessary, temporarily connect the computer to a friends monitor for troubleshooting purposes.
    After the monitor is connected, turn on the computer and the monitor. What happens?
    •If the newly attached monitor does not display anything , disconnect the cable and continue at Step 2: Is the video connection damaged?
    •If the newly attached monitor displays the first startup screen(s) but then goes black, there is a problem with Windows starting. Skip to step 5 .
    •If the new monitor works , the original monitor or its cables are faulty. Do the following:
    1.Replace the monitor power cable.
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    1.Replace the video cable.
    Turn on the monitor. If the monitor displays an image, you are done. If the monitor remains blank, continue using these steps.
    1.If the monitor does not work after replacing the cables, replace or service the monitor.
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    Inspect the video cable and video connectors for damage. Check for sharp bends or breaks in the cable and bent or broken pins at the connectors. With the monitor and computer off, try to straighten bent pins with a small metal tube, like the tip of an empty mechanical pencil or the tip of a retracted pen.
    Figure 1: Video connector
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    You can use these steps even though you will not be able to see anything on the monitor.
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    1.Turn on the computer and repeatedly press one of the following keyboard keys. Press the key about once every second for 5 seconds after turning the computer on.
    ◦For HP and Compaq computers that came with Windows 7 and Vista, press F10 .
    ◦For HP and Compaq computers that came with Windows XP, press F1 .
    ◦For Compaq Presario desktop computers built prior to 2002, press F10 .
    1.Wait another 5 seconds.
    1.Press the F5 key. This restores the default settings of the BIOS.
    1.Press the Enter key. This accepts the changes.
    1.Press the F10 key. This saves the changes.
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    1 Answer

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    3. Test your computer using another working monitor. If the problem occurs in a known good monitor, then it is a video card or motherboard (if your video card is integrated) problem.
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    1 Answer

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    Hope this Helps!

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    You may also hook a conventional CRT monitor and make your changes (such as bringing your computer back to its original settings). The darkest adjustment in CRT monitor could still render discernible displays.

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