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I’m afraid there is nothing special about booting MacOS it just boots like any other Power Mac: grey screen, happy mac and so on. Open Firmware stuff was related to improper configuration. Front LCD screen is disabled so nothing to see here too. As far as building a ROM DIMM, I won’t be able to...

Some news: - Mac OS 7.6 for CHRP won’t be it just freeze on the « Welcome to Mac OS » screen, probably need some modding - After patching an Si3112 card, I did boot the ANS from a fresh install of 9.0.4 of an SSD drive. - The 604 at 133MHz with no L2 cache is so slow that the SSD doesn’t make...

I think I booted my ANS of an SSD. Somehow I had the compatible hardware for this?! Where did the Murphy’s law go?

AIX and Mac OS are big-endian systems, the PCI interface is little-endian and accounted for, but I guess not for the way the video memory is dealt through the video chip thus requiring the driver to swap to little-endian. Extended RAS has to do with memory signals but I don’t know about those...

I forced the boot into Mac OS with setenv boot-command bye Now the ANS just boot like a normal Mac. To boot AIX I suspect you only have to press Command-Option-O-F and type boot to start AIX. I tried to install a video card but it wasn't detected, maybe a bad contact or a non-working card as...

Have yet to figure that out, but the 2.0 failed to boot my AIX install when I installed the new DIMM, I may need to reset the nvram. Unfortunatly my AIX install is on a scsi2sd, and my MacOS on a ZuluSCSI, I need to migrate the image because my ANS is missing a lot of accessories and I can’t...

I’ll try to look into it next time I remove the logic board from the ANS. I successfully installed Mac OS 9.0.4 on the internal SCSI bus, it’s quite slow as my ANS is only a 133MHz with no L2 cache. Video card supports 640x480, 800x600 and 1024x768 in 256 colors or gray mode only, no surprise...

@Byrd Here is a webpage that slice a 4MB ROM file in the 4 required chunks. Just open it in a browser et choose a ROM file, it will download the 4 files. Processing is done locally. I can't take a picture of the bodge wiring yet but you need to connect pin #43 and #44 to pin #23 on each chip...

Greetings, Almost a month ago @John Tucker revealed he had an ANS booting Mac OS, somehow a rumor came true. With the help of some folks at Tinker Different, 4 ROM were finally dumped and released by @joevt on his GitHub along some precious analysis. The ROM we are looking for in order to boot...

It was never gone, you just can’t browse it anymore. I listed known urls here some time ago: https://68kmla.org/bb/index.php?threads/download-info-curated-link-list.48044/

Thanks for the detailed explaination!

Quite impressive work! Does your research could also lead to better iterations of current Mac 040 accelerators?

It boots! 😲 Congrats!

This is the call for testing and glory! *ahem* Looks great! Can’t wait to see it in action, nice work!

Quite interrested in few too, I hope this is still going to be possible with those crazy tarrifs.

You didn’t said much, but you have all my attention. 👀