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  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 293
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Video card or monitor?

At random intervals my Philips CRT 20" monitor suddenly clicks and displays a random pattern that obliterates whatever I'm doing.  The only way to get working again is to re-set the computer at which point the monitor is fine again.  The last time it did this I hooked up a spare monitor which showed the same screwed up pattern, so I'm guessing my Radeon 9250 video card is dying, but how can I diagnose the problem?
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arfitty
Asked:
arfitty
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2 Solutions
 
nathana21Commented:
Try a known good monitor on it maybe 2 if available. That proves its not the monitor. Try updating the video driver. It maybe a video issue.
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nathana21Commented:
if that doesn't work it's probably the card
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nathana21Commented:
boot into safe mode. so  basic driver is running. This will prove its not the video driver.
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rindiCommented:
The symptoms you describe is almost always due to a bad video card. Either the video memory is bad or it is overheating. In you case it is probably overheating. I'd make sure the fan on it is running smoothly. sometimes cleaning out the dust helps.
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nobusCommented:
sometimes it can be due to a power supply that is running on the edge - check with another one, or calculate what power you need :  http://extreme.outervision.com/psucalculator.jsp      
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