On 2002.05.09 19:19 Michael Kukat wrote:

> > There are two unused 100 Pin IDC connectors at the back of the main
> > board. Is this the QBus?
> Usually at MicroVAXen in those cute little enclosures, 
Scherzkeks. ;-)

> the QBus can be connected to 2 50pin DSub connectors (those with 3
lines
> of pins, one male and one female). So it is e.g. at the VAX 4000-105A.

> Do you have such connectors?
No. Are there any symbols beneath the connectors on the enclosure? 

> Hm. Has it any more connectors? Maybe SCSI or DSSI, which is included
> as add-on-card on some newer models.
SCSI is on the main PCB. Maybe DSSI. There is room for three different
modules, the one for additional async lines is present and I wan'e know
what the other two modules are for.

> > Last, but not least: It seams that the current boot blocks do not
> > support booting from a local SCSI disk. Correct?
> Correct. This is the problem on all the NVAX-machines i did the
> support for. Currently, you can just boot off the network or QBus.
Bad. This machine was intended to be the boot server for my home
network.... 

> Feel free to have a look
> into the booter sources, if you find more time than i do ;)
Hmm. I still have to finish that RX02 driver and the accompanying
documentation about writing NetBSD device drivers... 
-- 



tschüß,
         Jochen

Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/