Model A1225 / Mid 2007 and Early 2008 / 2.4, 2.8, or 3.06 GHz Core 2 Duo processor

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Does video cards of 20" models work in 24" models?

I want to buy an ATI Radeon HD 2400XT (mid 2007 20" model) video card to replace my failing ATI Radeon HD 2600Pro in early 2008 24" model. Does anyone know if this card (ATI Radeon HD 2400XT ) is compatible with early 2008 24" model?

Thanks!

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gbuyer, does not look like they are compatible. The iMac (24-inch Early 2008) uses either a MXM III, M76XT+/256MB GDDR3 part number 661-4663 or a MXM III, G92GT+/512MB GDDR3 (CTO) part number 661-4664. The compatibility for those cards is with":

iMac 24" 2.8GHz Core 2 Duo (A1225) - Mid 2008

iMac 24" 3.06GHz Core 2 Duo (A1225) - Mid 2008

only.

Now for the one you are looking at, the Video Card for the mid 2007 20" model is either part number 661-4436. Compatibility is:

iMac 20" 2.0GHz Core 2 Duo (A1224) - Mid 2007

iMac 20" 2.4GHz Core 2 Duo (A1224) - Mid 2007

iMac 20" 2.4GHz Core 2 Duo (A1224) - Mid 2008

iMac 20" 2.66GHz Core 2 Duo (A1224) - Mid 2008

or it uses part number 661-4440, which is compatible with :

iMac 20" 2.0GHz Core 2 Duo (A1224) - Mid 2007

iMac 20" 2.4GHz Core 2 Duo (A1224) - Mid 2007

iMac 20" 2.4GHz Core 2 Duo (A1224) - Mid 2008

iMac 20" 2.66GHz Core 2 Duo (A1224) - Mid 2008

Hope this helps, good luck.

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Comments:

A wiki article (http://en.wikipedia.org/wiki/IMac_%28Int...) shows 20" imac can use ATI 2600Pro as an upgrade. And, mine has an ATI 2600Pro, so I thought ATI 2400XT can be used in 24" model. Thanks!

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The Intel iMac ATI Radeon HD 2400XT 661-4440 (Mid 2007) or 661-4673 (Mid 2008) is only compatible with iMac 20" 2.0GHz Core 2 Duo (A1224) - Mid 2007 MA876LL, iMac 20" 2.4GHz Core 2 Duo (A1224) - Mid 2007 MA877LL, iMac 20" 2.4GHz Core 2 Duo (A1224) - Mid 2008 MB323LL/A and iMac 20" 2.66GHz Core 2 Duo (A1224) - Mid 2008

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Thanks old turkey03, I have got a 07 ati hd 2600. Now my imac is a happy one!

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Excellent ;-) Thank you for accepting my answer.

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