How to tell if both cores are running?

[juro]

Any specific window to access on the Air to see if one core has shut down?

 

[rdowns]

Run Activity Monitor. You'll find it in your Utilities folder.

 

[richard.mac]

one core shouldnt just shutdown. the cores run simultaneously. check out Activity Monitor in the Utilities folder.

 

[Father Jack]

Download the iStat pro widget, it shows how busy each core is ..

 

[juro]

What specifically should I be looking for in Activity Monitor?

 

[bcaslis]

What specifically should I be looking for in Activity Monitor?

In activity monitor, go to the menu and select View->Dock Icon->Show CPU History. Then in the icon in the dock you should see two graphs showing the CPU usage of each core.

 

[juro]

Thanks bcaslis!