575 Macintosh Processor Upgrade and OS 9.1

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Last seen: 13 years 2 weeks ago
Joined: Mar 12 2005 - 13:18
Posts: 115
575 Macintosh Processor Upgrade and OS 9.1

So I have a 575 processor upgrade making my Colour Classic a Power PC 601. I know that Apple doesn't support the upgrade card past OS 8.1. But since Apple does support PowerPC 601 processors through OS 9.1, it seems to me there should be some way around this.

Why would I want to run OS 9 on a Color Classic running a 66MHz 601 PPC? Because I want my Color Classic to serve as a bridge between my OS 10.4 Mac and my 128k & 512k Macs. So, it doesn't have to be fast to serve files to my Mac 512k. Anybody done it? Know how to do it?

dankephoto's picture
Last seen: 3 months 3 weeks ago
Joined: Dec 20 2003 - 10:38
Posts: 1899

I know I had 8.6 on my old CC/PPC and I'm 94.382% sure I subsequently had 9.1 on there too.

Take a look at my MOS 8.6 and 9.1 patchers. I notice I don't mention the 575 series on that page, so I'm not quite so sure I used my patcher to get those OSes working on that Mac. If not though, it's not difficult to roll-yer-own mod.

dan k

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