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Overclocking LCD's to 75hz

V

VertexShader

Junior Member
I've been reading a lot of threads regarding whether "overclocking" your lcd to 75hz makes any noticeable difference. A lot of people were saying "no"; the census seemed to be that it doesn't....

I'm here to say they're WRONG.

I have a Sony sdm-hs75p that is supposed to run at 60hz with DVI. Just for kicks I overclocked it to 75hz to see if the people on this forum were right.

The difference was pretty dramatic. My friend and I did a blind test where he would set the refresh rate to either 60hz or 75hz and I could consistantly correctly tell which it was by just moving the mouse on my desktop. No noticable video quality decline, either.

Not only does the mouse movement appear smoother but there is a lot less smearing on games as well. This is a Xbrite 8ms panel so needless to say gaming on this lcd is awesome. Highly recommended, although I would prefer a 8bit panel instead, the dithering is noticable.

Overclock away!
 
Welcome.
Ocing is only for things that have some kind of a processor.
You don't OC the refresh rate, you just simply raise it. Anything under 72 Hz is bad for your eyes. If you meant OC as in raise it over its limit (by disabling "hide modes this monitor can't support") then that will just burn up your LCD very quickly.
 
Originally posted by: monster64
Welcome.
Ocing is only for things that have some kind of a processor.
You don't OC the refresh rate, you just simply raise it. Anything under 72 Hz is bad for your eyes. If you meant OC as in raise it over its limit (by disabling "hide modes this monitor can't support") then that will just burn up your LCD very quickly.
Click to expand...

this man speaketh the truth. LCDs are set to run at 60hz not because for image quality but for life.
 
Originally posted by: monster64
Welcome.
Ocing is only for things that have some kind of a processor.
You don't OC the refresh rate, you just simply raise it. Anything under 72 Hz is bad for your eyes. If you meant OC as in raise it over its limit (by disabling "hide modes this monitor can't support") then that will just burn up your LCD very quickly.
Click to expand...

Where people get this from is beyond me. I've never heard this from a reputable source. I have been running my LCD at DVI/75Hz since I got it (11 months). No issues at all. And, by the way, LCDs don't refresh on a routine, their crystals only change when needed. 60Hz on an LCD will not damage your eyes. I use 75Hz because the animation and mouse movement is softer. Also, you don't "overclock" your LCD. There is a list of supported resolutions in the LCD driver's VESA memory listing which tells your video card what is safe. If you go out of the range, your monitor will show a blank screen and an OSD with text describing just that.

Originally posted by: CP5670
There are some LCDs that are rated for 75hz. I think the 19" version of the OP's monitor is like that, actually.
Click to expand...

Yes, make sure it's within spec, but if it's not, 99/100 times your monitor will tell you so on its OSD.
 
There are some LCDs that are rated for 75hz. I think the 19" version of the OP's monitor is like that, actually.
 
my lcd is rated for 75Hz thats what i run it at.......if you have the right drivers for it (though this shouldnt matter anyway) windows/drivers...wont let you go any higher than whats supported

generally i dont notice a difference between 60 and 75, but when im mousing around in Photoshop and things, and in a few games, i find 75Hz appears to be a little smoother.

certainly mouse movements in the desktop feel that little more fluid
 
Originally posted by: xtknight
Originally posted by: monster64
Welcome.
Ocing is only for things that have some kind of a processor.
You don't OC the refresh rate, you just simply raise it. Anything under 72 Hz is bad for your eyes. If you meant OC as in raise it over its limit (by disabling "hide modes this monitor can't support") then that will just burn up your LCD very quickly.
Click to expand...

Where people get this from is beyond me. I've never heard this from a reputable source. I have been running my LCD at DVI/75Hz since I got it (11 months). No issues at all. And, by the way, LCDs don't refresh on a routine, their crystals only change when needed. 60Hz on an LCD will not damage your eyes. I use 75Hz because the animation and mouse movement is softer. Also, you don't "overclock" your LCD. There is a list of supported resolutions in the LCD driver's VESA memory listing which tells your video card what is safe. If you go out of the range, your monitor will show a blank screen and an OSD with text describing just that.

Originally posted by: CP5670
There are some LCDs that are rated for 75hz. I think the 19" version of the OP's monitor is like that, actually.
Click to expand...

Yes, make sure it's within spec, but if it's not, 99/100 times your monitor will tell you so on its OSD.
Click to expand...


couldnt have put it better,

have a refreshing :beer: on me man :thumbsup:
 
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