cpu upgrade on a core duo to a core 2 duo

Hi If..

Welcome to Apple Discussions

+"So you jumped on the Intel-Mac bandwagon too soon and now your Core Duo-equipped iMac feels inadequate?"+

Have a look at the step-by-step guide below to "Upgrade Your iMac to a Core 2 Duo Processor"

http://www.maclife.com/article/createupgrade_your_imac_to_a_core_2_duoprocessor

Dennis

i am looking in to this for my 1.83Mhz iMac.
i know its socketed and can be upgraded.
my dilemma is what processor to use.
the link above is for a Core 2 Duo 1.83Mhz 667bus
the part number the original poster has is a 2.33GHz 667bus

has anyone done this?
are there any "over clocking" forums for Mac users? i know there are plenty for PCeee peeps.

i found out last night that my early 17" iMac does NOT have 64bit processor which has ****** me off + means i will start running in to "compatibility issues" as i thought all intel macs had them. i love my iMac and i dont want to even start thinking about replacing it yet as far as i am concerned it has loads of life left in it!

I'm in the same boat. I have a 17" 1.83MHz CD which, like yourself, I am not happy about being 32-bit only...especially with Snow Leopard coming out soon.

My dilemma is if it's worth it. The T7400 goes for ~$150 on eBay depending on where it is (US vs China). That is far cheaper than it used to be (sold for $428 retail on 'egg). But granted if the swap does work, I believe these machines are still limited to the 2GB RAM? Someone correct me if I'm wrong. My other C2D white model only recognizes/uses 3GB even though I have a matched pair of 4GB total. I suppose 2GB is ok...but would be nice to have more with better 64-bit support coming.

Also, while you've go this thing open, an HDD swap is probably a good idea. The 160GB OEM isn't cutting it anymore in terms of capacity.

All in all is ~$250 (CPU + HDD) worth it? Passmark puts the T2400 at 868, T7400 at 1218;...a 40% increase. The E8335 2.66GHz chips in the newest iMacs is scored at 1823; 110% and 49% faster than the previous two chips. And this is just CPU performance...let's not forget the newer iMacs have faster GPUs and bus speeds. So I suppose a T7400 (or T7600) wouldn't be too bad for that little investment if a 17" screen doesn't bother you (can be expanded/spanned w/2nd monitor).