Upgrading 2006 iMac from C2D (T5600) to ?

T8700 isn't pin compatible, the best CPU for this would be a T7600 (2.3Ghz Core2Duo)

http://ark.intel.com/products/27257/Intel-Core2-Duo-Processor-T7600-4M-Cache-2_33-GHz-667-MHz-FSB

... as you'll discover they are expensive, I'm using a T7400 (2.16Ghz) in mine which cost considerably less, and a T7200 is a decent upgrade too (2.0Ghz, more cache, is capable of 1080p movie playback).

HEY! thanks for the info, i really appreciate it!

I found a T7500...

http://www.microcenter.com/product/380254/22GHz_Socket_478_Core_2_Duo_Processor_-_Refurbished#tab-specs

this one seems like a good price!

24 bucks sounds good!

it should work correct? i know my my current cpu has a FSB of 667

this new one is 800, i wonder if i pop this cpu in if the FSB will go up to 800 mhz?

i doubt it though because i'm pretty sure the FSB is set by the north bridge on these older machines.

I'm fairly certain that a T7500 will not work. You need a T7200 (1.83 GHz), T7400 (2.16 GHz) or a T7600 (2.3 GHz). They all run a 667 MHz bus speed. I don't think the 800 MHz processors will scale down to 667 MHz.

Here is a report that the T7500 does not work: http://forums.macrumors.com/showthread.php?t=1194016

I'm buying a 8X +DL SuperDrive and a T7400 from mcdermd.

He's the man with the stuff!!!

This thread will help lots inquiring on the internet.

because you need at-least a C2D for Lion, I am sure many with older hardware will be doing searches trying to figure out how to upgrade the cpu

in the Macbook, Mac Mini, Macbook Pro, iMac

i just installed lion last night, it does seem to run much smoother then snow leopard,

even with Intel GMA 950 graphics!