Question about ViewSonic E50 15" CRT Monitor

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Cannot st maximum refresh rat

My monitor is ViewSonic e50cb (Asian model) the maximum refresh it supports according to the product specifications is 67Hz at 1024x786 resolution. but in the settings in windows xp the maximum refresh value shown is 60hz. My question is how do I set my monitor refresh rate to 67hz as specified in the product specification? Good Luck Julian Leonardo

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  • Julian Leonardo Jun 07, 2007

    well i did download drivers the list of monitors available in the .inf file was e50c although my moniter is e50cb. but i still have the problem

  • Anonymous Sep 06, 2008




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Usually you can only change the device options if windows XP recognizes the device. Does it show up as a viewsonic E50cb in Device manager (My computer, Properties, Device Manager) or just as Plug and Play monitor? I would download the drivers (or if you have the CD) for the specific monitor you have and then I bet the options will open up for you the way they should be.

Posted on Jun 07, 2007


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I havE A VEIWSONIC Va520 when I turn it on , it brings up a screen saying out of range H-30-62 KHZ V-50-75 Hz what does this mean?

1. maybe the problem is with windows, because the refresh rate is set to an acceptable value

2. your lcd screen runs at higher hz than 60

3. you are running a resolution higher than 1024x768 15" LCD's generally can only support 1024x768 whereas larger panels support higher resolutions.

Possible solutions

1. The LCD you buy is shipped with a plastic cover over the screen which shows maximum resolution and recommended refresh rate. When you first turn on your computer press F8 to access safe mode, after you enter safe mode, configured the required setting on your lcd monitor. when you are done, reboot or restart your computer, hopefully your computer should be fine.

2. attempt to access the bios setup utility by pressing del or f2 of your keyboard after you see the initial display of your pc, if you can see it, the problem is with windows because the refresh rate is set to an acceptable value. Set it to its required settings by entering safe mode as posted on no.1

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I also have a Viewsonic Flatscreen, they are great and I had two Viewsonic CRTs before that.

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Digital Repop

Hi, Even if it is refreshing, shouldn't be that noticeable. One possible reason is not enough memory in your video card for which you can try compensate by increasing the Graphics Aperture Size in your CMOS/BIOS setup. Normally it should be twice of your on-board/add-on video card memory. Another possibility is your LCD monitor is showing signs of pending problem which could either be the CCFLamp, the inverter that powers it or the video interface. Some models of Viewsonic are known to have inverter failures. Specifically, the capacitors are overheating and would need replacement. In some instances, it is the lamp that goes or still others are simply cold solder joints. Hope this be of some help/idea. Post back how things are or should you need additional information. Good luck and kind regards.

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