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Thanks again, Kai. Saw this one there which might have proven useful in the search for the Mythical Slot C: https://www.ebay.co.uk/itm/227365135905 Way out of my budget range for this stuff though, made do with this cable riser bodge for a lot less money! ;) Neat stuff, reminds me of...

Thanks, very, very cool, but testing a passive riser. A rig like that is for debugging actual expansion cards I think? Kicking around the notion for a TAM riser with a row of shorting block headers that'll look a little like that crazy porcupine. Wanna give a try at powering the card stack from...

Wondering about your choice of CPU here? The most obvious difference seems to be rechargeable battery power support and then these? 264KB SRAM - as opposed to 512KB SDRAM on Pi Zero, but much faster? 16MB of onboard Flash memory - no memory onboard Pi Zero, MicroSD only there? reserved solder...

Identified the bare case of my 6360 out of the four on hand and got it up and running today. Feels good! I'd bought it refurbished in the day. Almost immediately removed the plastics and pulled the speaker out from under the CD shelf. I bent up the back support for the harness bar and stuffed...

Very cool indeed. At what level of Mac development did frequencies become "High Speed" enough to require such adjustments in PCB design. Me likes short and clean! :)

Dug my 6500 board out of the Classic it's been sitting on its head in for two decades. It powers up/chimes, but no video out for some reason. I'll dig out the proper two story Video Out/Sub Driver variant and see if that makes a difference, doubtful, but another base to cover.

I have a hunch toat trace lengths became an issue when, or just before alternating ground lines between signals became a thing? Sometime around VLB development on the PC side? Nope, haven't even played with AI outside of the assistant on Amazon listings. Besides, I have enough trouble...

NICE! Hopefully the fix won't be too bad. Though at the frequencies involved in the Portable, do traces really need to be equal for video?

Looks like it's ready for the PDS Passthru Kit for HPV or that lame PDS Video I/O card if used in 7200 or 8100. In the 6100 it acts a s a riser for direct insertion of HPV in its normal, bracketed position.

I've got a test rig that'll boot Alchemy and Gazelle boards with no problems at all, but not my AIO 5500 sub-variant of Gazelle. Does it fail to POST due to lack of internal CRT hookup or might there be another issue with this particular board? If display is indeed the problem, will it POST...

Looks like whichever side of the cable above facing upward will need to be filed/sanded/whatever to get the housing/cover's profile down to the level of the D-Sub connector's outer rim in order to clear the top of the drawer opening. The Rev.0 Prototypes are working great, busy tweaking fitment...

https://68kmla.org/bb/threads/nubusfpga-hdmi-on-nubus-macs.40760/post-441157

I'm developing a real LOATHE/Hate relationship with that damned Tango 2! First off was the non-booting problem I caused myself when I didn't set the screws correctly when reinstalling its backplane plate. Now its those stupid, vertically oriented Firewire connectors getting in the way of the...

AFAIK, the only NuBus Card to ever outperform onboard video (which is the rough equivalent of PDS video) would be the bit bangin' monster that @Melkhior developed. NuBus Cards, VRAM, high resolutions and color depths ARE NOT for greater speed out of a computer, ever. High resolution and color...

More pixels/greater workspace = better user efficiency in task performance = higher speed. So yes, indirectly, I'd say adding VRAM increases workflow efficiency . . . or it just looks prettier. ;)

GREMLINS! Got it to boot up in both slots without problem. I'd reinstalled the backplane plate to the card, but it wasn't screwed down properly/firmly, which probably caused some stress between card, riser and logic board connector? :oops:

HRMMM? I've run all kinds of cards in this critter and this is the first glitch. I'll try the trio in there to see if that's a problem. Don't recall if I've booted it up with the Tango in the top slot or not, trio booted up without drivers just fine. Can't imagine it's a power problem, My test...

It's Alchemy Architecture, not Gazelle in which this card is problematic without the Great Gazelle PCI Fix. Makes no sense to me unless some PCI equivalent of DeclROM in a NuBus Mac is present? Any suggestions?

Duly noted, will be putting together a todo list. Should I bench same setups in the stock 6x00 as a control? _________________________________________________________________________ GAH! Just spent $40 to get a $22 RA Firewire cable for the Tango 2. :rolleyes: Also ordered up what looks to be...

Found the silly TAM/G3/SATA vid, funny he made no mention at all of the obvious FatBack incompatibility. :rolleyes: Previous restoration vid: