@boingball
OK, I guess I do have the same issue that you're seeing in relation to the screen tearing and ghosting. 

I've owned my A600GS for less time than you've had yours switched off! So I don't have the same historical reference to compare.

something i found is that the connector between the bvision and ppc boards can "bend" slightly. this can happen if you over tighten the nuts and bolts - or seemingly over time with the force of the mounting kit, and lets face it, 1996 was a good amount of time ago. Resulting in giving you a good connection at either end of the connector, but the middle can be visibly seperated. if i ever put my bvision and bppc back together, i'd put a thin piece of something solid across the top and bottom of the cards as a load spreader that the nuts and bolts would then put pressure on - rather than the PCB material itself. spreading the clamping force across the connector evenly. i rememeber this would give me crashes and instability enough to drive a sane person to the brink.

i'd also make sure that all the big square chips on your bvision have heatsinks. there is what i guess a fat CPLD chip that's doing a lot of the PCI translation, this gets really hot too. if these chips are NOT getting warm, then we either have issues further down the pipe, or it's just not getting power.

i gave up with cybergraphics years ago, bascily when i could no longer put the original CD in as part of the install procedure. are you using cybergraphics or P96?

sorry to hear that you're having these issues, and i hope you resolve this soon. i would say please make sure that your powersupply is good - i used to run an extra 5volt line from the molex cable loom for drives to the 5volt of the floppy connector on the mainboard. hope i don't sound like i'm trying to tell you how to suck eggs!

good luck, please let us know how you get on if there is any resolution.

Apologies for the late response, life got in the way! Thanks for all the version information too; I did have vendors.txt but hadnt run med config.

Whilst hunting for a CD with mui on it, I stumbled across a backup file!

The system is booting off the backup which has various things like the ata3 driver and ahi enabled, however as soon as I try to use the vodoo3 it crashes.

Now, I should be on the last known stable setup, I've now noticed sometimes the voodoo3 shows up and sometimes it does not.  I'm currently investigating the psu its an old AT one that has been rewitred.  Will let you know how I get on,  hopefully I can find a source for a new AT psu, or a suitable converter.

Same here, in 720 I can move the mouse without it freezing/stuttering games

Amiga 3000: CH02 - Repairing Disastrous Battery Damage!
An Amiga I received to test in late 2024, turned out to have serious batter damage to its real-time clock circuit. The area was obliterated. In this video I'm going to attempt to get the clock working again, replace its PSU fan, and backup its hard disk and replace it with a shiny new BlueSCSI. Its my mission to get this little wonder from Commodore back on its feet once more, and ready for its new owner Leigh to enjoy.