Directx related monitor hum??

dakta · 03-31-2006, 07:33 AM

My monitor seems to make a high pitched hum when running 3d applications, so I did diagnostics in dxdiag and it only starts when testing directx9 support, could this be anything to do with EMI or anything?

dakta · 03-31-2006, 07:34 AM

3200+ amd
Radeon 9800se
1 gig ram
Phillips 107E 17" crt

TheMajor · 03-31-2006, 07:45 AM

Maybe it is related to high refresh rate. My monitor does the same if I set it at 1152x864 @ 100Hz, but 85Hz works fine.

dakta · 03-31-2006, 07:47 AM

well i'l just have a quick look through the varios res's and refresh rates gimme a moment

dakta · 03-31-2006, 07:52 AM

couldn't get the problem to show up again, however it only ever shows up when playing games or intense graphics, even though res's have been set as low as 800x600@60hz?

TheMajor · 03-31-2006, 07:56 AM

I highly doubt it is because of DirectX. It is next to impossible.
Few things you should try:
-set a white background, everything as bright as possible
-set a black background, everything as dark as possible
-try this at different resolutions and refresh rates
-degauss your monitor

dakta · 03-31-2006, 08:10 AM

well yeah dunno how software can interfere with a monitor but its what seems to be happening.

TheMajor · 03-31-2006, 08:13 AM

If it really turns out that way, try replacing the graphics card or PSU. Or just connect the monitor to a different computer and play the same games at same settings.

dakta · 03-31-2006, 08:17 AM

cheers bud

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