Hello I am duel booting Windows 7 and OSX Mountain Lion on My Optiplex 745 Mini Tower with iATKOS L2. Everything work great..The bootloader and everything...Even Windows that I had installed before I installed OSX. The only problem is when I boot to Mac, it gets stuck on the Apple logo. I also try doing -v. When I do that, it gets stuck on 'Waiting for root device'. The BIOS has no option for ACHI and I specified ACHI/SATA in the prefrences during the install. There was an option for NON ACHI, but had no idea if I should or not, so I didnt. If you need pictures or any extra info, reply!
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PDF FOR SPECS: http://www.dell.com/...45techspecs.pdf