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Model A1174 with 2 GHz Core Duo or Model A1207 with 2.16 or 2.33 GHz Core 2 Duo

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Is it possible to upgrade to an core 2 duo processor?

hello, I have an 20inch imac with 2Ghz core duo processor. I need to move to 64 bit processing and i wonder if I can upgrade to an core2 duo processor.

Thanks

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No. Sorry the processor is integrated into the logic board. The brand new i3, i5, & i7 iMacs do have removable and upgradable processors. These are the first upgradable processor machine since the G4 desktops.

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My error, this processor can be removed, but the whole procedure is not recommended by the author of the upgrade.

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Yes you can upgrade to a socket m core 2 duo must be a T7200,T7400,T7600.

I have done this a core duo is NOT soldered to the board it is a socket m.I haven't been able to enable 64 bit yet but I only upgraded today (probably have to reinstall os). I put in the T7200 core 2 duo 2.0 upgrading my T2500 core duo 2.0.

hope this helps you

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I'm very interested in your answer. Looks like you know things I do not. PLEASE provide supporting links. Or at the very least pictures of what you are doing.

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here is a how to link on upgrading the core duo imac (mine is the 20") to a core 2 duo.

http://www.maclife.com/article/upgrade_y...

the full list of socket m processors core 2 duo

T5200, T5300, T5450, T5470, T5500, T5600, T7200, T7400, T7500, T7600

I have determined that you can't get it to run in 64 bit mode even when it says it is

so lion will be a no go unless you can cheat the firmware with a later version.

(make it register as a 5.1 instead of the 4.1 model that my mac is.)

I have to play some more but have to do a backup before i try the firmware hack

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Well Carl, your link states, "we'd actually recommend you don't try: replacing your iMac's Core Duo processor with a Core 2 Duo chip." So if the authors of the article recommend not doing it, do you think it's wise to tell someone else to do it? We're here to help people not get them lost. Now if you can do it yourself and it works, then please write a guide to help the world.

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Since the purpose of the change for the OP is to move to 64 bit processing and Carl is unable to do so without a firmware hack (to be developed) I would think this project would be a non-starter.

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