Chosen Solution
Het Vincent, sorry you are having issues. I do have one of these I use as my bench test machine so I’m familiar with it. I’m having time problems right now so I’ll have to get back to you. Meanwhile take it back to the original configuration, disconnect all peripherals, have one hard drive we can erase and pull all the others. Tell me what other Mac you have and if you have a universal adapter or enclose so we can wipe the drive and put a system on it with out using the Pro. Pre-Installed MacOS: X 10.5.1 (9B2117) Maximum MacOS: X 10.11.x* Please give me a history on the machine. Have you attempted an EFI flash update trying to get it to a 5,1? I’m am not recommending attempting this, just asking. The boot lion disk you tried, was it a grey system specific disk for another machine? Do you have the original system installation disks? Right now we are trying to determine if the kernel panic is software or hardware related. Take it back to the standard RAM Standard RAM: 2 GB Maximum RAM: 64 GB* Details: 2 GB of RAM installed as two 1 GB modules. 6 slots free. RAM must be installed in pairs, and for “best acoustic performance” contain an “Apple-approved heat sink”. Some of these 2008 machines had slower RAM than what Everymac is recommending. Yours may be mixed if you have upgraded. RAM Type: PC6400 DDR2 ECC Min. RAM Speed: 800 MHz http://www.everymac.com/systems/apple/ma…
It sounds like your EFI firmware needs to be updated. @mayer is more knowledgeable than I, in doing this.
