Overclock.net › Forums › Components › Monitors and Displays › With all the talk of OC'ing monitors, is it possible to do this with an Apple 27' cinema LED?
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With all the talk of OC'ing monitors, is it possible to do this with an Apple 27' cinema LED?

post #1 of 9
Thread Starter 
Title says it all. Is this possible on an Apple LED? Nothing too drastic, just from 60 to 80 or something.

Thank you!
post #2 of 9
Quote:
Originally Posted by psufan5 View Post

Title says it all. Is this possible on an Apple LED? Nothing too drastic, just from 60 to 80 or something.

Thank you!
You know what... I don't think anyone's tried. And it very well might be possible...
post #3 of 9
I've got one. Was only able to bump it a few hz past 60 before lines and/or black screen. Have experience overclocking monitors too (used to have overlord oc monitor)
post #4 of 9
Thread Starter 
Quote:
Originally Posted by Seyumi View Post

I've got one. Was only able to bump it a few hz past 60 before lines and/or black screen. Have experience overclocking monitors too (used to have overlord oc monitor)

Ok. The screen is just crazy good as is. Ill just deal with the constant 60fps tongue.gif
post #5 of 9
apple cinema displays have a locked PCB at 60hz, even going to 61hz you will frame skip.
post #6 of 9
Interesting. I thought these were displayport screens? I had an impression that it is hard to overclock displayport because of it's lacking the reference clock? Or does it have some kind of other input as well and you guys are using, say, HDMI for overclocking the Apple Cinema Display?
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post #7 of 9
Quote:
Originally Posted by Carniflex View Post

Interesting. I thought these were displayport screens? I had an impression that it is hard to overclock displayport because of it's lacking the reference clock? Or does it have some kind of other input as well and you guys are using, say, HDMI for overclocking the Apple Cinema Display?

No they are not overclocking, they are frameskipping. You can set just about any monitor with the right drivers to a higher refresh than it is capable of but with many to most mainstream panels the refresh is locked. I have several panels that are display port connected and have a locked PCB and i can set the driver to a higher refresh, but at no point does the refresh actually exceed stock. It merely skips frames to compensate.
post #8 of 9
Quote:
Originally Posted by Spartan F8 View Post

No they are not overclocking, they are frameskipping. You can set just about any monitor with the right drivers to a higher refresh than it is capable of but with many to most mainstream panels the refresh is locked. I have several panels that are display port connected and have a locked PCB and i can set the driver to a higher refresh, but at no point does the refresh actually exceed stock. It merely skips frames to compensate.

Hm pity. I have 3x ipad 3 screens jury rigged directly into displayport (they are eDP so can just take signal straight from GFX card, just need a bit circuitry for backlight) and I have been thinking to push them a bit and see how they behave. I have just not found so far a way to overclock displayport link. They are DP 1.1a so should have enough bandwidth to go as far as ~100 Hz if the TCon can take it. According to the TCon spec sheet it can, in theory, take 120 Hz with strobed backlight or 240 Hz interpolated but these controls are not directly exposed over the displayport as far as I have been able to see. So best bet is probably just to do manual EDID override and see what happens.
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post #9 of 9
Quote:
Originally Posted by Carniflex View Post

Hm pity. I have 3x ipad 3 screens jury rigged directly into displayport (they are eDP so can just take signal straight from GFX card, just need a bit circuitry for backlight) and I have been thinking to push them a bit and see how they behave. I have just not found so far a way to overclock displayport link. They are DP 1.1a so should have enough bandwidth to go as far as ~100 Hz if the TCon can take it. According to the TCon spec sheet it can, in theory, take 120 Hz with strobed backlight or 240 Hz interpolated but these controls are not directly exposed over the displayport as far as I have been able to see. So best bet is probably just to do manual EDID override and see what happens.

That or get a aftermarket PCB from overlord or that exo website. Outside of that is is a pity since the manufacturer spent extra on a material component side to in a way reduce the potential features of the display. In other words to "add" this feature would be a reduction in materials or programing.
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Overclock.net › Forums › Components › Monitors and Displays › With all the talk of OC'ing monitors, is it possible to do this with an Apple 27' cinema LED?