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why can't i do 75hz @ 1920x1080 ?

post #1 of 20
Thread Starter 
i have two 1080p monitors hooked up to my 6870 using DVI-D cables. CCC only lets me select 1280x1024 75hz and 1920x1080 60hz.
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post #2 of 20
Why? Because the monitor is incapable of doing above 60Hz at 1080p. There might be a hack you could do but you'll lower the monitor's lifespan substantially.
post #3 of 20
Quote:
Originally Posted by ihatelolcats View Post

i have two 1080p monitors hooked up to my 6870 using DVI-D cables. CCC only lets me select 1280x1024 75hz and 1920x1080 60hz.

I'd take it you are using single link DVI cable? You can't because single link DVI-D doesn't have enough bandwidth for 1080p 75 Hz.

DVI-dual-link-vs-single-link.jpg
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post #4 of 20
Thread Starter 
using DVI-D cables
edit: yes, dual link
Edited by ihatelolcats - 2/8/12 at 3:12pm
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post #5 of 20
Quote:
Originally Posted by ihatelolcats View Post

using DVI-D cables

Single link or dual link?
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post #6 of 20
good question.

have a look at this thread...

maybe its being limited by dvi (or the panel itself).
    
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post #7 of 20
your 1080p is probably a 75hz panel. You'll have to unlock the 75hz via powerstrip.
post #8 of 20
Thread Starter 
Quote:
Originally Posted by Remix65 View Post

good question.
have a look at this thread...
maybe its being limited by dvi (or the panel itself).
Quote:
Originally Posted by Domino View Post

your 1080p is probably a 75hz panel. You'll have to unlock the 75hz via powerstrip.

thanks for the replies, i have powerstrip (and that guy's program) but i'm afraid of ruining my monitors. what are the chances of damage? i'm willing to try it, but is there like a guide for what numbers to put in or is it trial and error?
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post #9 of 20
I would also like to know this. I will be getting 2 ASUS VS248H-Ps later this month. Now I am wondering if anyone has got them to run at 75hz? Where does this program come from and where are the good guides for it. It is not really easy to search for due to the name rolleyes.gif. Has there been any factual tests that it lowers the life of the monitor and by how much?
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post #10 of 20
Thread Starter 
well here is powerstrip http://downloads.guru3d.com/download.php?det=169
and the utility the guy on hardforum made http://www.toastyx.net/cru-preview.zip
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zen dream
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