Question about AOC CT720G 17" CRT Monitor

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Hi...my AOC 17" CRT monitor display on the screen says NOT SUPPORTED OUT OF RANGE... i try to change the screen resolution by using other monitor but still nothings happen..

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  • wakashik Dec 18, 2008

    i have d sme problem!!!but ur solution did not work!!!!i think "not supported out of range" will be my screensaver!!!is thre any other solution?or i'd rather but a new 1?

  • jireh30 Mar 19, 2009

    it is not that.. when you open the computer..nothings appears from the start..when the motherboard loads.. the massage already appears..no image of boot up no image of system check.. it just display NOT SUPPORTED.. thats all..in short.. when the monitor is turned on the 1st thing will appear is the massage.. thats all

  • jesserhad Apr 12, 2009

    Yes me too.. I have the same problem NOT SUPPORTED OUT OF RANGE... No image of boot up no image of system check.. It has the same message when I transferred the monitor to another CPU. I have 10 monitor with the same brand AOC 771S silver black and there is only 1 monitor displaying that message.

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Change to the lowest settings you can on the other monitor, then connect the 17" CRT. If you can see anything, go to display settings and slowly bring the settings up. If you lose the display, press "n" (there is a dialog box asking if you want to keep the settings, y or n). Most likely it is a refresh rate that is set to high. Try setting this to 60 Hz for starters.

Hope this helps.

Posted on Dec 12, 2008

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