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I turn on my pc all fine screen says no signal help please

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The cable is not good... or not receiving a signal from your graphics card

either the connection on the back of the monitor is not tight enough
the actual video cable could be bad
the plug to the graphics card may not be tight or in the wrong output port

the bios could be set wrong for display to the graphics card.. check with your hp website for the correct bios settings for an add in video card

or the graphics card could be bad

Posted on Sep 29, 2009

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There is no connection between the monitor and the video card. Make sure the cable is connected well on both sides. If it doesn’t help, most likely you need a new video card.

Posted on Sep 26, 2009

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Verify that the VGA cable is fully seated and connected. If you can test the computer on another monitor or test another computer on that monitor. Are you getting any video display on the monitor? Does it display the start-up screen then goes away when windows starts? If so start the computer and press F5. A menu will come up and select to start computer in VGA mode. This should bring up windows so you can change the screen resoloution to something the monitor can handle. If the computer does not display anything and the monitor is testing good then the on-board video or video card might be faulty. You could change the video card if it has one or add one to the system if it has on-board video. You could also try re-setting the BIOS jumper to clear the cmos or pull out the watch battery for 20 seconds. Another thing to try is to disconnect all hardware...cd-rom, hard drive, floppy drive, and memory dimms and see if it boots up with display. If that works the you will need to re-install each piece of hardware one at a time and re-boot until the problem happens again. Once it does that is your problem device. You could also try swapping out the power supply and see if that is the cause of the problem.

Posted on Sep 26, 2009

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