Chosen Solution

Hi there, I have an old 24" “broken down” imac, and i would use is it as an external display for my new 21,5" i5 imac. Is it possible with or without modding the imac to use it as an external display? i know that it isnt possible to use the origional displayport. any help is welcome

As far as hardware goes, no. The LCD in the iMac gets its signal via the display data cable from the logic board. You can, however, use it as a display using software. Since the connection depends on your wireless network, display performance may vary greatly.

Many thanks for the info so far. ScreenRecycler is a nice solution but it is really slow, even over an ethernet connection. Other VNC’s are even slower. I just can’t imagine the fact that it isn’t possible to share video and also hardware info. (master/slave)setup.