Operating Systems > macOS

Which OS for a Performa 640CD DOS Compatible?

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dot.this:
40 MB of RAM on the Mac mobo.

I think the PC card hasn't been upgraded, which should mean 4 MB of PC memory, ugradeable to 32 MB. I could probably get more PC RAM cheap, right? The PC side should also be able to borrow RAM from the Mac side, or that's what the manual says. Should I use Apple's PC Setup Control Panel or work around it? I've never set up a 486 OS on this machine.

Anything else? The PC has a 486 DX2 processor, 66 MHz, not 33, sorry about that.

psyjax:

quote:Originally posted by dot.this:
40 MB of RAM on the Mac mobo.

I think the PC card hasn't been upgraded, which should mean 4 MB of PC memory, ugradeable to 32 MB. I could probably get more PC RAM cheap, right? The PC side should also be able to borrow RAM from the Mac side, or that's what the manual says. Should I use Apple's PC Setup Control Panel or work around it? I've never set up a 486 OS on this machine.

Anything else? The PC has a 486 DX2 processor, 66 MHz, not 33, sorry about that.
--- End quote ---


Hmmm... if I recall correctly using the Mac RAM caused some slow down. I had one of the PPC 6100 dual boot systems.

But other than that, the control panel should work.

Hmmm... but if you are planing to put linux on there, you may risk caousing wierd errors. I don't know how finiky it will be about your hardware.

So the best choice may be getting PC RAM.

voidmain:
A 486 with 4MB of RAM?  I would suggest Geoworks.

dot.this:
I really have no idea what to do with it, but I got the Mac side running so well (with OS 8.0 of all things!) that I wanted to rig up an equally good PC side.

voidmain:
I don't think you have a chance of an equally good PC side without 40MB of RAM on that side.

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