I have compaq presario amd processor computer and compaq 7540 monitor since last two days it shows a sign of '' out of frequency range
set lower resolution, refer user monitor manual '' and screen goes blank after some time i tried to use mouse but no use or even buttons on monitor are not responding
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Try this per HP:
HP Business Monitors - What Do I Need to Do When the Message Sync out of Range Displays on the Monitor?
What do I need to do when the message Sync out of Range displays on the monitor?
When the video card signal exceeds the frequency allowed for the monitor, the following error message may occur:
Sync out of RangeSOLUTION:
To avoid the message, lower the resolution or vertical frequency of the video card.
Reboot the system and use the VGA mode to force the video card driver to lower its resolution. Follow these steps.
Shut down and restart the system.
For consumer systems such as HP Pavilion desktop PCs, push the Power button once.
For commercial systems such as HP business desktop PCs, hold down the Power button for five seconds.
Immediately after seeing the HP/Compaq logo screen, press F8 at system startup to initiate the bootup menu.
Scroll down to highlight Enable VGA Mode , and press ENTER .
After Microsoft Windows completes its bootup process, access the Display Properties and select a desired resolution, which is compatible to the connected monitor.
The PC is sending out the resolution that is too high for the monitor to handle, you need to set the resolution of the PC to be the native resolution of the monitor and set the refesh rate to be at 60Hz.
Go into your "Device Manager" in Windows and find out if your HDTV monitor is still installed. Delete the settings under the monitor tab and reboot the computer. With any luck the reboot will cause Windows to re-detect your current monitor and install the proper settings. A similar process may need to be followed with your video card driver as well. CAUTION: Make sure you have a disk or some means of installing a copy of your video card driver before you delete out the currently installed one.
Start your computer and press the F8 when the manufacturer's logo screen is showing. This will bring you to the Windows startup menu. Pick "start in VGA mode" and windows will start up with video settings you monitor can handle. Then you can change your video settings so Windows will start normally with your monitor.
The maximum resolution for the MV540 is 1024X768 @60Hz refresh. The other monitor isn't giving you an error message because not all monitors have that feature, but both the monitors are unable to display whatever data the computer is sending. If the display is normal until you start the game, then the game itself is setting the resolution to something out of the monitors' range. You'd need to set the game up to play at a setting the monitors could handle. I've never played WoW so I have no idea if the game offers a way of selecting the resolution. The game may simply require more graphics capability than your monitor can provide. Most systems now are using 17 or 19-inch flat screens or CRT's, and they offer more resolution and refresh rate options.