500 MHZ G4 MAC OS 8.6 FOR MAC OS
500 MHZ G4 MAC OS 8.6 FULL
500 MHZ G4 MAC OS 8.6 PRO

If you want to run older versions of Mac OS, you WILL need an older Mac that can run them. There was no code to drive that Hardware in previous versions of Mac OS because that Hardware did not exist when those versions of Mac OS were written. Your Mac has a completely different Hardware Architecture for its Memory and Hard drive. That it will not run older versions of Mac OS is completely unremarkable. And that same IC also provides an Interface for FireWire 800 in certain models, another architectural change. Another new Interface running at speeds never seen before. That same IC also provided a previously unseen Interface to the Hard drive, now at ATA/100 speeds.

No support for it exists in any previous version of any Mac OS. The Bus Controller used in previous Macs was replaced with a different High Speed custom Integrated circuit that provided access to a never-before-seen type of memory running faster than ever before. But on the specific Mac you are using, the mirrored drive doors G4, there were major architectural changes. There are plenty of examples where what you want to do would work fine. Again, I know this is a rather stupid question or request, but has anyone ever done this, or if it is remotely possible? In general, the more taxing to the CPU, the better compression, therefore the smaller the file. Which also happens to be in INCREASING order of file size, given equal resolution, frame rate, and duration. I know System 7.6.1 won't work for sure, though there has to be a way to allow the system to recognize by force mac OS's that are lower than what came with the machine?Įven Puma and Cheetah would be interesting to see. Even an early G4 should be able to handle MPEG-2 at DVD resolution just fine.

500 MHZ G4 MAC OS 8.6 FULL

I want to natively boot into Mac OS 8.6 and see what it looks like in full screen and just to see how it runs for nostalgic reasons.

500 MHZ G4 MAC OS 8.6 PRO

The PowerTower Pro 225 uses the same video card that Apple sold with most 9500s, the ixMicro TwinTurbo 128M.So, I have a power mac G4 2003 dual 1.25 MDD model and although I have the original install/restore disks for 10.2(Jaguar) and OS 9.2.2, I was wondering if there is a way, or if it exists, of hacking the firmware to allow my system to boot anything lower than 9.2.2?Īlthough, I got a glimpse of what OS 8.6 and lower looks like through Sheepshaver, I wanted to go a little step further and see if it is remotely possible to FORCE recognize on boot any version of Mac OS other than the ones that came with the machine? * Oddly the 9500 is missing from the compatibility guide, but it is the same as the compatibility of the 8500. and doesn't feel as unstable as 9.x either. I don't think I would go as far as to say that 9 doesn't run well on earlier (pre-G3) systems, I just think that 8.6 manages the resources better and stays out of the way. I don't have Mac OS 9.x being used for operating system duties on any of my systems. All my pre-G3 PCI Macs (a 7500, two 8500s and a PowerTower Pro 225) are for Rhapsody stuff. I have Mac OS 8.1 running on my Quadra 950 (that is as high as it is going to go without replacing the logic board with one from a 9150), and Mac OS 8.6 running on my 8100 (which has a G3/500 in it) and my PowerBook Duo 2300. I personally like Mac OS 8.6 better than Mac OS 9.x.

500 MHZ G4 MAC OS 8.6 FOR MAC OS

Click to expand.Well, here is Apple's compatibility guide for Mac OS 8/9 (the PowerTower Pro 225 is equivalent to a 9500* on that guide) and here is where you go if you want to install past 9.1 on unsupported hardware.

500 mhz g4 mac os 8.6