The Cinema display will work just fine with your iMac. However, if by spare you mean shutting down the iMac display, there's no way to completely turn it off. You can always turn down the brightness to its lowest level but in a darkened room it will still glow somewhat.
Why don't you just buy a 27" iMac as it uses the same display?
The Cinema display will work just fine with your iMac. However, if by spare you mean shutting down the iMac display, there's no way to completely turn it off. You can always turn down the brightness to its lowest level but in a darkened room it will still glow somewhat.
Why don't you just buy a 27" iMac as it uses the same display?
THe iMac display can be turned off by control+alt+eject