Tom's Hardware > Forum > Windows 7 > No 100hz refresh rate on monitor
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blacksizzle   10-10-2009 at 07:22:09 PM

Can't get 100hz refresh rate on my monitor with windows 7 64bit.

I tried using a custom monitor driver I made with powerstrip, but it still won't allow it.

I'm using an ATI 5870 video card. even the ati control panel won't let me force a refresh rate higher then 60hz.

I really need a 100hz as I'm using a CRT, and I need 100hz for gaming.

Any help me greatly appreciated

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LePhuronn   10-10-2009 at 11:58:36 PM

You don't need 100Hz for gaming as 85 or 75 will be flicker-free. Have you had this monitor run at 100Hz before? I wouldn't be surprised if a refresh rate that high has been dropped in Windows 7 given that CRTs are old hat and TFTs don't go that high.

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burn-e86   10-11-2009 at 12:10:53 AM

the 100hz depends on your monitor rather then the PC. What monitor do you have?

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505090   10-11-2009 at 12:41:44 AM

max refresh depends on the monitor

anything over 75 is more than you can see. i do recommend setting to the highest you have available as it helps reduce eyestrain, but that is a long term effect not one that you can perceive at any point

------------------------------ E8400 : GA-EP35-DS3L : mushkin 4GB DDR2 800 : HD 2600PRO : 450W ATX12V : Windows 7
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Devastator_uk   10-11-2009 at 11:26:46 AM

uh_no wrote :

CRT's update at 30 fps anyway.....



What a complete load of rubbish!

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johnnyq1233   10-11-2009 at 04:19:25 PM

WIn 7 supports rates over 100hz. I have a 120hz Samsung 2233 lcd panel and 3D glasses......:)
Your ati drivers might not support higher refresh rates since they don't have 3D support.
Only nvidia has that right now with a driver addin.

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505090   10-11-2009 at 07:55:21 PM

uh_no wrote :

CRT's update at 30 fps anyway.....



would you be so kind as to explain why CRT's use 30fps? ? ?


ATI has supported 120 for a long time I had a old crt running at 120 for several years using ati, sadly i dropped that monitor one day and it turns out crt's don't work with a big crack in the screen.

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Bronze Win 7 badge sminlal   10-11-2009 at 10:23:49 PM

505090 wrote :

would you be so kind as to explain why CRT's use 30fps? ? ?

I'd wager he's referring to NTSC, but even that paints 60 fields per second (odd, then even scan lines) so that one complete frame is drawn in 1/30 of a second.

All computer monitors for the last couple of decades have used progressive scanning which has nothing to do with the NTSC standard.

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505090   10-11-2009 at 10:48:35 PM

your probably right, though it doesn't have much relevance in this thread

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gamerk316   10-12-2009 at 06:58:14 PM

If you're moniter supports it, then you just found a bug.

And BTW, the reason you want such high refresh rates, is it results directly in the drawing of more frames per second to the screen.

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