-Nick"(from 9/26/2013 mail) Installed a used 1.83Ghz Core 2 Duo T5600 in my wife's Mac Mini Core Solo and upgraded the RAM to 2.0GB. Today I upgraded my Mac Mini Early 2006 1.66GHz Core Duo to a used 2.16GHz Core 2 Duo T7400. I had a difficult time getting the pins out of this Mini.The hardrive in the mini crashed and I figured it would be a good time to install the T5600 in it. My wife's Mini made me wonder why people were having problems getting the pins out. Took 10 minutes to get one pin out as one side kept expanding when I tried to push the pin through the CPU hole. I plan to install 10.7 on the 2.16GHz machine just to see if I can get it to work.Also, I would recommend reading around on the thermal paste and seeing which of the several recommended ones is available at the best price, I found the ubiquitous 'Arctic Silver' to be quite a bit more expensive than other brands which out perform it in testing. I upgraded to a T7200 2.0Ghz, 2GB of RAM, a Super Drive from a '09 i Mac (it can burn DL DVDs and cost NOS) and a 1TB hard drive. This one is a 2007 and will also be upgraded - T7600 2.33 Ghz processor, 4GB of RAM (mini 2,1 EFI supports up to 3GB usable) and a bigger hard drive. Good luck to all those who want to get the best out of their machines.
It booted up and I was greeted with the account setup screen.I also found a non working 2006 1.5Ghz Core Solo that needed some TLC and would not power up.Turns out it had been opened up several times before and had hardware that was not seated correctly.I had the external drive partitioned into 3 partitions.Partition 1 was used to install 10.7 and reboot the Mac Book. I did not install 10.7.5 as I had read that some mac mini systems did not like this update so I felt I would ignore it for now.