Threadjacking alert! Threadjacking alert!
guardian452 wrote:3,1 (e.g. 2008, 5400-series) is supported by apple: you push the button on the app store and cross your fingers that it works... and that's it.
Yeah, I know it's supported, and for good or ill I know the official procedure. I didn't want to go into my app inventory and worrying about what is/isn't going to work under 10.10. Besides, I can't afford to upgrade anything now anyway.
guardian452 wrote:a 1,1 is 2006 model (32-bit) and a 2,1 is the exact same machine but with 8 cores. (so, you upgraded the CPU?)
Close - the EFI and SMC firmware are different between the two models, as well as what CPUs came in them. You want the 2,1 EFI because it includes support for the Clovertown CPUs, and some fixed microcode. Anyway I upgraded the system EFI to 2,1 and the CPUs to a pair of X5355. (Haven't updated the SMC to the 2,1 version, which might be behind a sleep/resume issue in Windows 7.)
guardian452 wrote:Neither one is supported by apple so you must put your board-id and tiamo's 64-on-32 boot.efi into a custom install disk.
I went with the newer Piker-Alpha bootloader, which I gather is a fork of tiamo's, and prepared a USB drive with a Yosemite installer tweaked to allow the 1,1 and 2,1 board IDs. Mostly worked, somehow despite replacing boot.efi in two different places on the thumb drive I still had a stock 10.10 boot.efi post-install and had to put the machine in target mode to fix it from the 3,1. (Hmm... I might have allowed a 10.10.1 update before I rebooted, now that I think about it...)
guardian452 wrote:Also, the dog-turd of a 7300GT that is nearly 10 years old and was junk when new is not supported but apple will happily sell you a beefy new radeon to replace it.
Well the 1,1 came without a video card, so I was using the 2600 XT from the 3,1 in it. (The 3,1 has a Sapphire Radeon 7950.) But I wanted something with more punch than the 2600 for games under Windows, so right now there's a flashed Sapphire 5850 in there. If I can figure out how to get a working EFI on the MSI R6950 from the Dell, I'll drop that in the 3,1 and move the 7950 to the 1,1. The 7950 is flashed, so I get boot screens from it on either machine. (Yes, I know about netkas.org; I first flashed a 9700 for my G4 Cube about 10 years ago, when smalldogs was the place to be...)
(I may not need
EFI on the 6950 for the 3,1 to work, but I'd prefer it.)
Note: I followed this guide at MacRumors to put Yosemite on the 1,1.