I have just bought MBP '11, 17", i7 (4 cores). I understand the Intel i7 has four cores and Snow Leopard has the technology to spread load into CPU cores even if the App doesn't support it. Here some conditions that puzzled me: 1) iStat Menu, displayed 7 instead of 4 cores. I presume, it 'wanted' to display 8 which is 2 for each core but missing one somehow. Why the four cores are being displayed as 8 cores? 2) I used Super Flexible Sync to transfer my data back to the new HDD. The CPU intensive operation during file sorting/listing and copying seems revolved only around the first core i.e. 90-100% and the rest of the 3 cores are showing minimal activity from iStat menu display. The fans are buzzing, CPU temp goes to 78 degrees celcius with internal fan at 5k RPM plus external fan cooling the MBP. CPU 1: 90 degrees C CPU 2: 83 degrees C CPU A: 85 degrees C Fans: 4k RPM with additional external fans cooling the keyboard/hinge area CPU load: 12% used, System 1%, Nice 0%, idle: 87% CPU Core 1: up to 100%, the rest of the cores just 10% or less. At this point, I thought Snow Leopard should have distribute the load into multiple core even if the App doesn't support it? 3) Apart from having Super Flexible running, I also compress my files using 'Clusters'. Again, only first core is active and the rest cores are sitting almost idle. At this point, I'm not getting the multicore idea... At least my MBP 2008 with dual core are showing really high CPU activity on both cores if this is the case. 3) How do I know when Turbo function actually kicks-in? Doesn't seems to have this working at all. I recalled that turbo kicks-in if there is a high load and the operating temperature allows it to operate at higher clocks. 4) I'm most of the time connected to A/C power. In the past with detactable battery, It is recommended to remove the battery if this is going to be connected to power source for a very long period. Now with built-in battery, it is not practically possible to remove the battery while on power source. Does it have detrimental impact being connected to power source for long period of time as it was in older MBPs? 5) Lastly, I am using OWC SSD with upgraded MP4 firmware. I can't seems to be my system to hibernate and it hangs when waking up from sleep. any idea?