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Seems too simple to be a serial card, but could be a parallel printer interface. I'm guessing the IC at 3A is a ROM.

Which CD is that on? EDIT: nvm, found it on disc 2 of my 7/01 SDK CD set

That would be fabulous. I've been spending the afternoon messing with Boot Variables' source code but it does not like New World Macs like my development MDD. I'm trying to adapt @joevt's NVRAM read code from DumpNameRegistry and it no longer crashes but there seems to be an impedance mismatch I...

Setting the property to 1 from Open Firmware indeed enables on-board Ethernet with 1.1.20.1. Now to think about if we want to solve this with the nvramrc or some other means.

I've been looking at the Ethernet issue some more. DumpNameRegistry shows two differences for /Devices/device-tree/bandit/gc/mace: 2.0 has a property PLSCCPort 00000001 which I doubt is relevant to the problem, and 1.1.20.1 has a different driver-ist InterruptSetMember offset. In the 2.0 ROM...

I have an 8*24 GC in my MacIvory system and took some benchmarks a while back. https://oldvcr.blogspot.com/2024/10/refurb-weekend-symbolics-macivory-lisp.html

Make an image of the 8.1 CD as an iso, then set it up on an external BlueSCSI/ZuluSCSI or similar. They can directly emulate a CD-ROM from an .iso; it's all in their documentation.

Something just occurred to me. If you hook up the speaker leads to that card, do you get audio output from the machine through the line out? Maybe it's mixing the machine's built-in sound.

That looks like a clone of the MEK6802D5. It even has the same "0 F E D" lower row, though the G M R X column is a bit out of order. Seems like you should be able to power it up, the ground and power connections should be easy to identify from the data sheets.

I can't see the board assembly number, but that looks like a ROM 03 board, yes. It would be 607-0275-03. I don't recognize the Tapestry card (it just has a generic 87C51 on it, which is an 8051), but the speaker output might not be enabled if the rear headphone port is in use. Try disconnecting...

Just a 6802? No 6847 or anything else?

Not many were sold as they were exorbitantly priced, even for Apple hardware. If we want to turn this into a serial number tracker, I'm game. I'll get the ones from my production 500 and 700, since the ESBs and Deep Dishes don't really count here.

Speaking of oddball architectures, I've got a recalcitrant AT&T 3B2/310 I'm trying to get into Unix (it doesn't like the kernel). That's WE32000. The chips themselves have an interesting physical form factor. The Tutor keyboard is chiclet rubber and not nice for touch typing (the later Pyuuta...

I see you answered your own question later on, but these messages only ever appear briefly on the LCD. On the serial port they will be emitted as well (9600bps). The Gestalt ID is 67, same as the 9500/9600. I won't be able to access the console for a few days, but I'll dump when I get back...

Then unfortunately I'd agree the IDE controller seems like the most likely cause, or possibly the hard drive connector. There's just not much else to check. If you have a spare CardBus slot on it, you could try one of the CompactFlash adapters to see if it will boot from that.

Can you boot it from SCSI? That would at least help you narrow down the failure.

1.1.20.1. And yes, this is not my first rodeo, thanks. :P I don't even have the PRAM battery installed for all this and regularly reset the board between tests. That's my point exactly: it uses the PowerSurge script anyway, even on 1.1.20.1. That's why I don't think it's matching on that...

Not a lot on my first computer, the Tomy Tutor.

Just remove the 256K cache card. The ROM is not expecting it and it almost certainly won't work properly. That was never a supported configuration. You could try hard setting output-device to the Open Firmware path for the Rage 128. The path will vary based on where you installed it. Try...

I agree it shouldn't be used and it does not seem necessary. This is OS 9.1. There is nothing in the CDEV's table that matches AAPL,ShinerESB, so that wouldn't match the behaviour nor the Gestalt ID. Meanwhile, there is a difference in MACE Ethernet between the two ROMs: onboard works with 2.0...