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Wack0 / maciNTosh

PowerPC Windows NT ported to Power Macintosh systems
GNU General Public License v2.0
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Power Macintosh G4 "Yikes!" support #19

Open Doctorj128 opened 1 month ago

Doctorj128 commented 1 month ago

This is the only computer I own which can support booting maciNTosh, but presumably it's not possible to use at the moment due to lacking USB keyboard support? I think the board does have an ADB header on it still, but no physical port to plug into.

Wack0 commented 1 month ago

Until USB support is added, Yikes needs a hardware modification to add the missing ADB port, as described here: https://ameblo.jp/keroxiee1016/entry-12663017372.html

RheYX commented 1 month ago

For anyone trying the ADB modification as described in the linked article: The capacitors and resistors should be size 0603 imperial (1608 metric). I couldn't find the correct package size for the the chokes/inductors, but 1210 imperial (3225 metric) is OK, just a little shorter than they should really be. Similarly with the fuse (I took the advice in the article and fitted a polyfuse which I don't think are made in the original package size) - 1210 imperial (3225 metric) is OK, just a little shorter than it should really be. If you fit a polyfuse, you must wait for the polyfuse to cool down fully after soldering before you test (they trip by heating themselves up, so will trip when you heat them up by soldering). TE Connectivity 5749181-1 is a perfect fit for the connector.

I can confirm that both maciNTosh 0.04 and 0.05 work fine on a 400MHz Yikes with this ADB modification.