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Re: out of frequency
Sounds like an inverter problem. If the power supply is internal replace the capacitors coming out of the voltage regulators. These are usually 1000mf and/or 470mf. If that doesn't do the trick look up the numbers on the 8-pin chips that drive the secondary transformers on the inverter to see if they are getting the right voltages. Good Luck!
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If it's getting no signal, make sure the monitor is set for the correct input. This would be either analog (if your cord has blue ends) or digital (if the connectors are white). Depending on wt yhat your monitor is, a button on the monitor will help you set that. If it's set for the correct input signal, then switch out a different cable to see if perchance you have a bad cable out of the box. If there is another PC or laptop setting around, plug your monitor into that to make sure it's good and maybe even plug THAT monitor into yours to make sure there is nothing wrong with your video card. Let me know what transpires. If this takes care of things, please help me out by rating it accordingly.
does the screen show no signal, it could be from thedigital button setting on the monitor try to adjust the setting,
2.check the video card ,you can test it on another system,test the monitor on another systems thats working fine if it continues may be its frm the systems or the monitor tube is bad if your using the correct resolution
If you notice, when you see the windows start screen, its usually "big and dopey". Thats because the video drivers aren't being used yet. If it is blanking out right after you see that screen (with the scrolling bar), my guess is it's a corrupt / bad video driver.
The link below is a Digitally signed M992 monitor driver.
Also try upgrading to the latest ATI software and drivers. You can also try and change the frequency refresh rate to 75mhz. It in the Control Panel under 'Display' and tab 'Monitor'.
It shows a list for frequencies you can try.