CSPPC & A3000 desktop?

[billt]

OK, I just got me my CSPPC for my 3000 desktop today, and tonight I'm fumbling with it. I suspect I'm suffering from a missing INT2 hack, but I'd like to verify what's happening would be caused by that. I had been using a CSMK2 card with 060 and no problems, but did not have the SCSI module for that card, just using the 3000 motherboard's SCSI for hard drive and a DKB Spitfire SCSI card for CDROM/Zip/Jaz drives.

With the CSPPC (128MB RAM, PPC/200, 060/50), I can get into the Phase5 early-early boot menu and look at the SCSI, memory, etc. settings there with no problem. But if it tries to boot from either floppy or hard drive, I shortly get a blinking power light and red guru.

I've checked the board is seated well, and also reseated the RAM that shipped with the board.

I'm planning to do the INT2 hack by this weekend and try again, but would appreciate any reassurance that this is the expected problem before INT2 is done. I may also hack it into a tower case while I've got the thing ripped apart. Here's hoping I can work out a way to fit my prometheus and Video Toaster together... (I've got more than one PCI card so slot risers won't save me any room, I've already got a couple of those anyway)

Also, any pointers to the INT2 hack description?

[billt]

Thanks for the tips! I don't have any real reason to continue using the motherboard SCSI, just need to dig out some terminators to tie it up... I don't have any of them fancy SCSI cables/active terminators/adaptors required for the CSPPC on-board SCSI yet, I'll get some next paycheck. Anyone know if the DKB Spitfire SCSI card can work right with the PPC card?

As for DMAC/Ramsey, I honestly don't know which ones I've got in there. A different 3000 I had I ordered as many new chips as I could get, but I didn't move them to this machine when that one got unreliable. I'll have to check these as well, and dig out the old ones fromthe other machine if needed.

And I do have some ZIP RAM on the motherboard, I'll rip that out if needed as well, no real need for that with the CSPPC card being full.

Man, I really do have some tinkering to do here, don't I?

[billt]

Discoveries so far, the motherboard jumper settings aren't exactly the same as for the CSMK2. At least not when I did not have the SCSI module, but my MK2 manuals are long-bueried somewhere so maybe this was wrong anyway but still worked well enough. Anyone have A3000 docs showing the proper jumper configurations for the QUADCLK one? BOARDCLK and CPUCLK are pretty self-explanatory, but QUADCLK needs to be external and I can't read that one on the board. It looks like 4 pins together, some jumper on the left two, and the right two closer to the QUADCLK label have no jumper currently. This stuff along can be most if not all of my problem. And me of course not even having any A3000 manuals...

Motherboard memory - 3 of 4 banks of ZIP memory filled.

DMAC - rev 02.

WD33C93A-PL SCSI chip rev 08.

Ramsey - rev 04.

Buster - rev 11.

[billt]

Finally got the thing booting. INT2 and jumper twiddles seem to have made it happier. Ended up toasting the hard drive as it still crashed with the install I had, might not have tried it again after the last QUADCLOCK jumper change, but there was nothing important in there anyway. Got a fresh 3.9 running, and then did something to hose that so I have to try again today. But it was running!

SCSI is currently weird though. I don't have any cables or adaptors or anything for the CSPPC SCSI, and it dodn't want to be happy on the Spitfire board. It's now workingon the 3000 motherboard SCSI, but the termination doesn't make much sense. I don't think ANYTHING is terminated on the chain, internal or external. The drive MIGHT have terminating enabled on it but I of course have no docs for it, and I've removed the other drive that was in this machine earlier, a 52MB drive doesn't do much anymore so no loss... Termination may have been the problem on the Spitfire card as well but it started working this way and I don't want to mess it up! I've heard A3000 termination can be strange, but wow, what fun this has been!

I haven't gotten far enough to see if the PPC works or not though, but at least the 060 part of things seems to be good. I'm hoping this evening I'll have found proof the PPC chip works as well and then I can be happy and try to figure out OS4 on this thing.

[billt]

Finally, looks like it's working. Got OS3.9 installed, and ran the WarpOS demo programs found in the WarpOS archive on aminet, so PPC seems to be running as well. Cool! Now I just need to find one of my larger spare SCSI drives so I can install a game or something and actually make use of it. Current drive is a measly 540MB and already mostly full with apps and OS4 beta... But I can relax and be happy now.

[billt]

i need to do this INT2 modification on my A3000, can someone email me the instructions or post them up on the net, the links don't work on this thread!

I just followed the second post's web link and it worked fine. Look under Amiga Hardware Repairs section and pick the INT2 repair. It's got some pictures to help make life easier.