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You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Consumer Hardware & Components > overclocking video card question

overclocking video card question
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May 26, 2007, 12:09 AM
 
I have windows XP installed through boot camp so I have access to the various utilities for overclocking my radeon x1900xt. First of all I wanted to know if overclocking in windows meant the card was overclocked once I went back over to OS X. My gut says yes but I just wanted to be sure. Second of all, what should I overclock it to so that it's the same speed as the PC retail version, and how much higher can it go before it gets unstable? I figured someone has tried it already. Thanks.

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May 26, 2007, 08:44 AM
 
Radeon™ X1900 Series - GPU Specifications says the nominal clockrate for the X1900XT is 625MHz core and 1450Mhz RAM
     
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May 26, 2007, 09:02 AM
 
Your gut is wrong!
Usually when you oc, it is a program that will run within a os/driver, it is not a firware oc updated.
Oc is a trial and error thing, it will go as high until it become unstable and run within reasonable temp.
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May 26, 2007, 04:28 PM
 
Boo. I just new a software overclock was too good to be true.

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May 26, 2007, 08:40 PM
 
Why not just use one of the software overclocking tools in OSX?
     
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May 28, 2007, 12:37 AM
 
i didn't think there were any o_O.

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May 28, 2007, 09:31 AM
 
     
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May 28, 2007, 12:11 PM
 
Better linky ATIccelerator II | on-the-fly overclocking for Mac OSX
Graphiccelerator | ROM Editing tool for Mac OSX

ATIccelerator II doesn't seem to support Intel Macs yet, but Graphiccelerator may, I'm not sure. I think ATIccelerator is the safer of the two as it doesn't modify the card's firmware. Graphiccelerator sounds more dangerous.
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May 28, 2007, 06:02 PM
 
Originally Posted by mduell View Post
I remember a time when there weren't any overclocking apps and I'd never heard of anyone using one since then, so please excuse me, oh great one.

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May 28, 2007, 06:52 PM
 
But you didn't even look. That's what gets the rolling eyes, not that you didn't know they existed.
     
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May 28, 2007, 07:35 PM
 
Jesus. I made a bad assumption based on never seeing any overclocking discussion on here. Get over it.

Considering ATIccelerator doesn't support Intel Macs, and neither does Graphiccelerator's ROM dumper/flasher tools, I was somewhat right, in my case.
(Last edited by mr. burns; May 28, 2007 at 08:46 PM. )

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