CPU fastening screw size and source?

Hi mate,

This is the one I bought:

http://www.ebay.com.au/itm/150577787743?...

It is socketed and was simply a matter of "out with the old and in with the new" There are a few photos here:

https://www.facebook.com/media/set/?set=...

(I think this album is public so you should be able to view the photos fine).

I followed iFixit's logic board replacement guide and then improvised from there.

Performance is definitely improved.

Bear in mind, I had a 2.4 so 3.06/2.4 = 27.5% improvement.

For you with a 2.6, you'd get 3.06/2.66 = 15% improvement.

Hope this helps

Gday mate, nice to see an aussie around here. Thanks a lot for the reply, i wasn't sure wether it was socketed or not so the only way to know was to ask directly someone who has the exact same model, i didn't want to teardown everything and not be able to change it. Well i found one in Canada for a little less Ebay. Yeah it's a smaller improvement, I'll have to think about it because I just upgraded the RAM to 4+1GB. What are you going to do with the old one ? Do you think I'll be able to sell it for $40 or $50 ? That'll definitely help me to take a decision :)

Yeah I havent decided on what to do with the old one. You could always put it on eBay but it may or may not sell. Either way, it's a fun project. Just make sure you follow the steps closely, have the right tools and you have some thermal paste to use on the new CPU :)

Ok, I think I'll go for it, I'll buy it soon. My iMac is in Paris and I'm currently in Canada until end of december. The thing is that it only cost CA$100 here whereas it costs about 150€ so CA$200 in France.

Yeah I'll follow the steps carefully, I've already dissemble a Macbook Pro to apply thermal paste but iMac seems much more difficult. Specially the glass. I have to find Torx and suction cups. I'll keep you in touch when I'll do it probably in January if you don't mind. Anyway thanks for the advices !

Oh and by the way, did you have any heating problem ? I mean the heatsink of the iMac 20" is not designed for a 3.06GHz cpu, does that matter ? Did you monitor your temperature ?