Target Display Mode can turn iMacs made between late 2009 and mid 2014 into a monitor for use with other Macs. Here's how to do it, and what limitations exist.
M1 Macs will not boot Intel startup disks and vice versa.
However bootable USB installers can boot either. EG a bootable USB installer created on an M1 Mac will boot and can be used on an Intel Mac and vice versa.
M1 Macs will not boot Intel startup disks and vice versa.
However bootable USB installers can boot either. EG a bootable USB installer created on an M1 Mac will boot and can be used on an Intel Mac and vice versa.
Yes, you're are right. Apologies. I was responding to the thread title, ignoring the bit in the OP about just using the iMac 27 as a display, which had been answered by @acorntoy.
Yes, you're are right. Apologies. I was responding to the thread title, ignoring the bit in the OP about just using the iMac 27 as a display, which had been answered by @acorntoy.