On 3/16/06, Robert Armstrong <bob at jfcl.com> wrote: Mine's an 8300 because I don't have any 8250 CPUs. Hmm... I don't remember the fan speed varying on mine, and the airflow sensor is pretty sensitive - if you leave the lid off, it should trip the box in well under a minute. We had to make a cardboard sheild when I did VAXBI board production - to let us have our analyzer pods and ROM emulator pod stick out. Unfortunately, I have no prints and no spares. I certainly like mine. I wish I could figure out why the DWBUA won't pass onboard diagnostics - perhaps I have 3 dead UET cards (Unibus Exerciser/Terminator - it has to be present and functional for the DWBUA to report 'all clear'). If you just want to play with BI machines, it's a fun little box. The two most common ways I know of adding disks are either the KDB50 MSCP controller or stick it on an HSC50 and use clusterable disks. There _are_ VAXBI SCSI cards, but back in the day, they were like $10,000. I've never held one. That and the VAXstation 8000. No other machines that I know of are 100% VAXBI - the 85xx/87xx/88xx are Nautilus Bus based with a BI adapter, similar for the 6xxx series (XMI w/bus adapter). I used to have an 8550, but it didn't survive a move 13 years ago. The 8300 was easy to stick in the back of my VW microbus (and is in my basement now, hooked up and powered down). -ethan