in my where I I don't know what the differences are between the TurboLaser bus (as in the AS 8400) and the Laserbus (on the VAX 7000/DEC 7000). If it works you will have the pleasure of writing some VAX drivers for PCI. Don;t forget that some LSB modules had Alpha-only firmware: I presume they had carnal knowledge of Alpha MMG data structures which are different on VAX. So just because it does not smoke when you drop it in the slot does not mean it is useful! for For VAXBI, VAXft and XMI you can start here: http://www.stmarks.pp.catholic.edu.au/vax/ There are various "field guides" dotted around the net that cover Omnibus, Qbus and UNIBUS. I've got a list somewhere of LSB and FBUS stuff. Is there anything specific you wanted? Antonio