I finally got what seems to be a stable system. I'm pretty sure it was a mixture of bad hardware. At least motherboard, possibly CPU card and RAM in various combinations.
I swapped parts until I felt that I had a stable A3640 and A4000D, then installed OS3.1.
I ran this and replaced parts until it seemed rock solid. (took three motherboards...)
Then I installed the Warp Engine 3040 in that system. This still seemed good even with 64MB RAM on board.
At that point, I felt cocky, so I put all the Mediator parts in and although they weren't used, it didn't make it unstable.
Then I replaced the 1.2GB IDE drive with the original 2GB SCSI the system came with and that also seems good.
So far I've copied 2GB of data (roughly the whole drive) back and forth between SCSI and IDE drives with no apparent data loss or lockups!
Woo Hoo!
I've got a good base now, so I should be able to tell when any given part is bad. Next up, the 060 card! I hope it is good!
I plan to use better SFS and CF drives instead of FFS and ancient IDE/SCSI once the hardware seems 100%.
Good to hear you made some progress,I knew you could come up with a working combo from the stuff you had. SFS will be a nice improvement with more speed and long filenames etc. getting rid of autovalidation alone is worth it.
I can still make it down your way and bring some goodies if you like as long as its before the 14th (have to house sit for a friend on the 15th and take care of his dog).
Mech