Hi,
yes 3.1, it had a small delay, but my bvision stopped to " freeze " so it's good for me

.
I powered the 1st BPPC one with AT on GREX (now I'm trying ATX because i need more power for more peripherals and it can' initialise itself properly...),
My 2nd BPPC+Bvision with AT on ATEO BUS (which use floppy connector for +5/+12v).
I have an another GREX and a Permedia 2 (Creative Labs Graphics Blaster Exxtreme) PCI Graphic Card, but i'm waiting to see what will happen with OS4 because I don't know if it will be considered like a Bvision (as with OS3.x and MOS) or not usuable at all....