My Spec 2.93 Ghz Intel Core i7, 4 GB, Logic 9.1.3 OSX 10.6.7 My new i7 with higher spec (2.93) is running substantially slower than than my old i7 (2.8), and is even having with Logic more frequent out of memory errors, and CPU overloads than my 3.5 year old macbook pro dual core (4gb Ram)! Something is not right! Also I get the spinning rainbow ball alot! Compared to my old macbook pro and older i7. I have tried switching Logic from 32bit to 64 bit, with not much improvement. I have tried running logic with 4, 6 and auto processing threads without much improvement (auto would crash the system, 6 would be glitchy, 4 and 2 about the same) The weird thing is I originally bought the older imac i7 2.8Ghz and I WAS BLOWN AWAY how fast, snappy, and powerful it was. However it died on me and apple could not fix it and superbly replaced it with the new i7 2.93GHz I noticed my old i7 got extremely hot and I suspect it 'blew up' and I feel than Apple may of 'clocked down' the new i7's or done something to them I do not understand. If anyone can shed some light on this I would be most appreciated. Also is there any tests I can do to check my machine is function correctly other than the hardware test?