^ yeah, good point. And while we're on the topic of floppy drives, make sure that the disk is properly seating on the spindle when it's inserted. When I cleaned the drive in my IIfx, I somehow managed to mess something up that caused the loading mechanism to hang up partway. It would accept and...
Congratulations on finding yourself a project! Sounds like you've done some solid troubleshooting so far. Take all of what I'm about to say with a grain of salt since I've never experienced this particular problem before, but being decently familiar with the SE/30 hardware and having poked...
The analogue board and power supply are common to the SE, so if they do turn out to be bad, that's a cheaper option to use as a parts donor.
Building a reloaded board isn't a task to be taken lightly (or cheaply), but if you can solder and have decent electronics troubleshooting skills (or at...
I actually recently discovered that the current hardware/gateware revision *doesn't* seem to work properly in my IIfx - it was only the early GAL-based version that I'd tested on there.
I haven't had a chance to dive into it properly, but I've built up an interposer board that will let me look...
Thank you so much! I've spent a lot of time fussing over whether it's 'finished enough' to release, so hearing that definitely puts me at ease.
I've been using a 25ns ATF1502ASL-25AU44 and a 70ns SST39SF010A-70-4C-WHE without issue - pretty sure those are the slowest currently-available grades...
Another thing to check out is the disk-loading mechanism - if it's dirty or even just gummed up with old grease, it can get into a state where it will appear to accept a disk just fine, but the disk is not locating fully 'home', meaning that the heads and sense switches are not making proper...
The "patched HD Setup" has been floating around for years, I'm not sure where it came from or the nature of the changes, but the effect is that it skips the check for Apple firmware on the drive, so it can partition non-Apple drives.
The first two downloads at...
IIRC, they do work, but it's difficult to insert disks, because the cases on machines that came with auto-inject drives lack the cutout around the disk slot that allows you to push the disk in far enough to load into a manual-inject drive.
https://www.siber-sonic.com/mac/superfloppy.html has...
I have an E-Machines Futura SX that'll do 1024x768 at 8 bit (plus 24 bit at lower resolutions, and 1152x870 at 8 bit as well). It's not perfect (actually getting 1024x768 out of it requires an annoying sense-code workaround and I can't get it to work properly in accelerated mode), but they're...
Case in point (different model, but of the same vintage) - my PowerBook 180c. It had sat unused in a drawer in a relative's office since around 1996, if the modification dates on files were to be believed - certainly not the temperature extremes or damp that old computers often find themselves...
Yeah, this is fascinating.
Somewhat beside the point, but many many years ago, I had an old 486 PC that would do something similar when booting from a floppy disk. It would boot successfully, but corrupt the disk in the process, even if the write-protect tab was set.
If it'd help, I can take a...
Just did an experiment with my 180c, and it does *not* seem to recognise a monitor attached with the NTSC Monitor sense code (100), nor PAL Encoder (extended sense 00-00-00) or PAL Monitor (extended sense 11-00-00). So that seems to put paid to that idea, sorry :(
The 15.6672 MHz dot clock for 512x384 would also be plausible for an underscanned 640x480i mode, so while it not being listed certainly doesn't bode well, it still wouldn't be beyond the bounds of possibility that it could exist as an unsupported mode. Stranger things have happened.
If I can...
That’s a good question. Its video output supports a number of different resolutions so having support for an interlaced display wouldn’t be beyond the bounds of possibility. I’d very much doubt if it could do colour composite output, but interlaced 60Hz RGB sounds pretty likely.
You’ve piqued...