Picasso IV partially working

[Pheonix]

OK, got my Picasso IV partially working now.  If I set either Zorro II  mode or only 2 MB RAM (either one,) it will now boot up, and I seem to  have access to all video modes.  Set it to Zorro III with 4 MB RAM and  it boots, but I don't get a screen, well, I get part of a screen, but no  mouse.  I thought it was just moved up to off the top for bit there,  but that wasn't the case.

So, that made me feel a little more hopeful.  Maybe it can be fixed  after all.  But one problem still remains.  I cannot get even the  reduced Picasso IV running with my Buddha Flash (or the Catweasel  w/Buddha.)  Set it for 4 MB Zorro II and the Buddha just isn't seen,  trying to use drivers from the disk, and it Guru's out.  Set it for 2 MB  Zorro III and I just get a bright neon yellow/green screen.  Set it for  2 MB Zorro II and it seems to boot just fine until the WB is supposed  to come up, then I get a black screen.

Assuming that the Picasso IV, Buddha Flash, Cyberstorm MK-II 68060/50  Mhz is supposed to be fine together, then I'm hoping that all of the  problems are actually just one, fixable, problem.  The first issue would  seem, to me, to be either the memory management or the buss management.   Either one could also interfere with the Buddha.  Any idea on how to  check these out?  I have already flashed the BIOS on both cards.   Haven't updated the BIOS on the Cyberstorm, but not sure (yet,) exactly  how to go about doing that, and would rather wait till I've tried  everything on the Picasso & Buddha first.

It is an Amiga A4000 with all chips updated to the latest/best version  (Buster 11 I believe & Kickstart 3.1 for example.)  Currently I have  installed 16 MB Motherboard Fast RAM, 2 MB Chip RAM, Picasso IV, Buddha  Flash, Cyberstorm MK-II 68060/50Mhz with 128 MB CPU RAM, Generic  DVD-ROM omni-burner (read & burn DVD-/+R, DVD-/+RW,DVD-/+R  DL,DVD-/+RW DL, DVD-RAM, CD-R, & CD-RW,) 1.3 GB IDE HDD, 9 GB IDE  HDD, & Chinon HD Floppy.  Don't really need (or plan to use,) the  burner.  But a straight DVD-ROM was $30 and that Omni-Burner was only  $15.  Figured it wouldn't hurt

[Acill]

First thing I was going to say is what rev the buster was, but you covered it in the end of your post. The best advice I can give is to see if you can find someone that also has an A4000 you can send it too for testing. If its the card they are hard to fix.

If its the card they are hard to fix. My advice would be to get an indivision MK II CR for the flicker fixer/scan doubler and one of the new MNT cards for the video modes. Its a better card in my opinion and very nice. It even had an SD card slot on it to use for storage like a HD.

http://shop.mntmn.com/product/mnt-va2000-amiga-graphics-card-zorro-ii-iii

[Pheonix]

It acts the same way on 2 different motherboards.  The only thing that has remained constant through all tests is the case & PSU.  I've swapped out the CPU with an A3640 (which I no longer have.)  I've used 2 different 2 MB SIMMs for the Chip RAM, and I've also swapped out the 4 4 MB SIMMs for 2 8MB SIMMs.  I've swapped between the Buddha Flash and a Catweasel S-Class Zorro II.  I've even used 2 different riser cards, 2 different DVD-ROM drives, 4 different Hard drives, and 2 different floppy drives.  Though I can't see how those last could have an effect.