32-bit booting only cannot boot 64-bit OS.
#RAM UPGRADE FOR 2007 MAC MINI MAC OS X#
Mac OS X 10.6 Snow Leopard compatibility.requires Mac OS X 10.4.10 to 10.7 Lion not compatible with 10.8 Mountain Lion or later.introduced 2007.08.07 at US$599 (1.83 GHz Combo) and US$799 (2.0 GHz SuperDrive) replaced by Early 2009 model with Nvidia graphics on 2009.03.03.PowerPC Macs won’t let you install OS X to a USB drive or choose it as your startup volume, although there is a work around for that. PowerPC Macs running any version of the Mac OS prior to 10.4.2 cannot mount GPT volumes. Both PowerPC and Intel Macs can boot from APM (Apple’s old partitioning scheme) hard drives, which is the format you must use to create a universal boot drive in Leopard. Only Macintel models can boot from GPT hard drives. Intel-based Macs use a partitioning scheme known as GPT.