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A bit late as I just stumbled across this threat, but I know of one 68k-Monster (68020 that is): The mighty 'Suprenum'.  Running 256 nodes, each featuring a 20MHz 68020/68851/68882 plus a vector floating-point unit from Weitek. Its OS was called 'PEACE'... there definitely was some love for...

Hey Gang, Thanks @nickpunt, @trag and @Trash80toHP_Mini for your motivating comments. This helps to keep on writing... crazy what I knew back then and already was about to forget (suffering from "project-ADHD"  :grin: ). So good to have a "code refresh" while documenting all this in more...

Wow... nearly 10 months since the last post! This and the fact that 68kmla had a moment of rest in last weeks I thought it would be a good thing to document my work on the Carrera 040 driver in a place I can control and also have all the means to create a layout fitting the requirements of...

Thanks, glad if this is useful for somebody else!  As for the todo-list: I need to "clean" the remainders first as I promised the parts to someone else who is on the mission to repair an old PS "the correct way" as @techknight would probably say ;-) Hopefully this is been done this week -...

That was my initial thought... then feature-creep struck  :wink:  And who knows when I actually find the time to fully draw that PCB... And we all know: Makeshift solutions last the longest.

Some years later... Just in case you're looking for help with your Quadras PSU... go over there - it has the correct pinouts, the ones from xlr8yourmac are wrong!: 

Because there was no alternative, that's the route I took... and hey, Lady Quadra is alive and kicking again!  :wub: For those who will ever be in the same situation, here's the how-to with pictures and stuff: Fixing the Quadra power-supply (Ah, and the correct pinout of the power-plug -...

Thanks for helping everyone! That somehow is what troubles me. I huffed and puffed and and... got a cut in my finger  :-/ @Bolle: Is the logic for the soft-power (tickle) on a separate board? That would render the ATX PSU replacement into a real option. So while @Unknown_K's hint "open it up...

Hey gang, I could cry like a baby... Restaurated my Q950, cleaned it, gave it a nice retrobright sunbath, tidied-up the A/UX installation and being annoyed by the loud fan, I went for the final step replacing it with something more silent and while at it, I gave the PSU a good blow of fresh air...

Not that it'll be of much help, but I have the very same behaviour with my Q950 "Backup-Board" - just did some summer-cleaning and had that 2nd board which I had added a socket to the CPU oscillator some years ago. No chime, no video. It does react to power-on through ADB. All caps look good to...

Nothing fancy, just plain simple 50pin SCSI, molex, no caching.

Oops, sorry. Yes it's v5... about 3 months old. Works like a charm until the system is not shut down properly.  When booting from floppy, there's nothing else need to be done. Just boot from floppy, immediately select "restart" from menu, floppy ejects, SCSI2SD boots just fine. Voodoo... :evil:

Hi all! This drives me crazy...  I have a SCSI2SD (recent firmware) in my IIci, Sys 7.5.3, all parameters set in "safety mode" (ie. SEAGATE vendor etc.) but formatted and setup with LIDO anyhow and everything's fine and shine... ...until I have to hard-reset the machine - which I have do a lot...

Well, yes you do. Bolle an I are „ze Gerrrmans“ in here. The 2 German pages in the AMD doc are just the same as the previous English ones... 1:1 translation. No secrets there... quick update on digging through the CP code: I’m 99% sure to have found the ‚crash area‘, leading to the...

Hey Gang, While diging, biting and crawling through the Carrera040 disassembly I got to the point where I need to know more about the "Boot Globals" risiding in lowmem's system global variables. BootGlobPtr lives at $DDC, that's for sure, and it points to different locations on different...

Very nice! Good to have you in same „setup state“.  How many probes does your LA have? Can you check/see 0x53000000 activities (in and out)? I‘m getting closer and closer to the crash point... the tricky thing is, that the CP crashes into the grey boot screen, even from MacsBug. So a simple...

Just for clarification: SwapMMUmode has nothing to do with 030 vs 040. This most often called function switches from 24 (dirty) to 32 (clean) mode... and back. It needs to be called as soon you need to access anything beyond 8MB.

You took the V1 from this archive, right? That's what I'm using on my SE/30, too. Which System version are you running? Have you installed it "for every Macintosh" as described in the Carrera ReadMe?  Error 10 explained: "There are many routines in the Macintosh ROM that can be called by...

A bigger UPDATE: Sooo, after some hassle with, well, nearly everything in my SE/30, finally here's where we are now: 1st Test: SE/30, 32bit clean ROM -Using the INIT (which I've diassembled and it indeed does not more than picking on code-resource out of the control-panel resource) and...