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I wonder if a driver could be written to control the resolutions on the CAD versions. That would open up a huge resource. Plus simply by adding some crystals and a rom, the VDR-2a seems to be upgradable.
So I have an Interware VDR-2a card and soldered the extra crystal oscillators on and swapped out the ROM with the VDR-2L ROM found here. I assumed this would function like the CAD version of the card (Hold down option or keys 1-9 or A-F on boot to change modes-see attached). It didn't seem to...
Update:
I got a hold of a Daystar 50MHz 68030 Powercache card and it seems to work as expected and plays nice in the SE/30 with the Xceed and with @Bolle’s adaptor. It Benchmarks at about 1/2 the speed of the 40 MHz 040 card or roughly the same as the 040 with control panel on the Medium setting.
I didn’t realize it was that involved. The Diimo does seem to disable the xceed and the system ignores it completely passing the “built in display” data to the crt.
Ok here are pics of cards and tattletech PDS slot report with Diimo and Xceed in. Note this is with combo card set to 0B. When set to any other setting the system won’t boot (error chime)
I have a Mac CI PDS version of the Diimo card. Not the SE/30 version. It attached to the combo card and is on Bolle’s list of known good cards. The Xceed is the new element in the equation.
I have an SE/30 with Bolle's combo adaptor and (drumroll please) an Xceed with grayscale adaptor I assembled using Bolle's GERBER files. I tried attaching a Diimo 030 50MHz powercache via the PDS slot and, while the accelerator did work, it seemed to disable the Xceed card. The display...
I built your Micron Xceed adaptor board and it works.
Three issues:
R5 should be 560 ohms - mouser part 603-CFR-25JT-52-560R
R6 should be 20K ohms - mouser part 603-MFR-505FTE-52-20K
The B7G-PCB sockets are available on eBay from bsitgoods item number 282733408435 10 for $4.99US
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