Is it possible to replace the GPU of my imac8,1?

My 2008 iMac with ATI Radeon HD 2600 Pro worked perfectly until I updated from Mac OS X 10.6.2 to Mac OS X 10.6.3. Since then I experienced complete system freezes (about once a day). Until recently, I was able to workaround this problem by installing the GPU kernel extensions from Mac OS X 10.6.2 on top of Mac OS X 10.6.3, later 10.6.4, 10.6.5, 10.6.6, and finally 10.6.7. This workaround does not work anymore, because installing the 10.6.2 kernel extensions on 10.6.8 causes kernel panics. See thread https://discussions.apple.com/message/15486107 for more details, if you like.
My question: Is it somehow possible to replace that GPU of my iMac with some other?
Or is my only way out to leave OS X and switch to some other OS (Windows e.g. doesn’t show such problems)?

This looks like I could replace it with a GeForce 8800 GS: http://www.welovemacs.com/apim242inco230.html
But $549.95 seems crazy for such an old GPU …

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Is it possible to replace the wifi card with another one?

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I have a t400 with intel 5100 wifi card and now I want to install mac os on my laptop.
problem is that mac os does not detect the 5100 series of wifi card and I want to know whether it is possible to replace the current 5100 model with a older series?
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Solved!
Go to Solution.

Lenovo restricts the wireless cards to Lenovo branded units certified to work with the machine. This is done through a whitelist in the system BIOS. I recently disassembled the latest (version 3.14-1.06) T500/W500 BIOS and found the following whitelist table. This is raw big endian hex appended with what I found by searching the device ID's. Redundant entries are for varying vendor IDs.
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Is it possible to replace the back outershell of my iPod

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Not by Apple.
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I need help please. I want to know if there is a possible way to change the button at my Satellie U400 because they are getting soft and they are not as good and hard as it was before, so please anyone know's if I can remove those and put 2 new one's?
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[http://oi56.tinypic.com/j0wwoj.jpg]
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Does anyone know if its possible to replace the battery on a 3rd gen nano and where and how much?

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Is it possible to replace the front n back cover of iPhone 4S? External crack both the side no internal issues!!!

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Is it possible to upgrade the GPU in the computer?

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Is it possible to replace the iTunes (Mac) 10 band EQ with Apple's 31 band EQ?

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Is it possible to replace the GPU of my imac8,1?

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