Vax 6320 on Ebay

I don't think there are any load boards for either the XMI or the BI bus - I presume that's because there is no need for them. The PSU regulating modules are clearly visible at the back. They can source a considerable current (300A springs to mind) so if you really do want to stick voltmeter probes there you'll want to make sure you have no rings or other metalwork anywhere and you must replace the protective plastic covers when you are done. That large a current will do very nasty things even though it is only low voltage. I'm reasonably sure I've powered up an empty VAX 6000 box before now with no ill effects. (Empty apart from the console tape etc.). I also recall that there are other power connectors around for various add-ons (you could add RA7x disks to later cabs) so you might be able to provide a load that way if you find it does need one. If you hunt around on the web you can find various people who have done a 1-phase conversion on the box - they probably have experience of what you need to do to test the PSU. There's lots of documentation on http://vt100.net/manx. Look for any VAX 6000 docs and any KA62-KA66 docs. Anything with XMI in the title should be useful too. I used to support the drivers for the DSB32 and DMB32 so once you get around to trying those out I may be able to provide some hints. Antonio arcarlini at iee.org -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.338 / Virus Database: 267.10.12/75 - Release Date: 17/08/2005