11/750 minimum config

From: ragge_at_ludd.luth.se <(ragge_at_ludd.luth.se)>
Date: Fri Aug 15 09:01:20 2003

> The time of my life has finally rolled around that I can have a good crack
> at getting my VAX 11/750 up and roaring (as i'm sure David Brownlee would be
> pleased to note!)
>
Nice! :-) I have a 11/750 myself that I powered on yesterday :-)
It just needs network to be happy.

> I'd like to canvass your opinions on the absolute minimum of hardware that I
> need in there (I know f'rinstance that I can remove the floating-point card
> and the RDM) to have something that should at least get to console.
>
Well, that depends. You need the four CPU cards (L0002, L0003, L0004 and
L0008) and also the memory/unibus/rom card (L0010, L0016 or L0022).
Then you need some memory (M8750, 1MB each). If you have Massbus disks
there must also be a L0007 Massbus controller, for unibus disks choose
the controller you need. The only additional card you need is the
Unibus terminator card.

> I would also like to know what sort of power load we would be talking per
> card, if anyone is privvy to that sort of information, or at least an
> informed guess.
>
Per card is a strange way of measure, but the whole machine runs nicely
in a 10A fuse in Europe (230V).

> Same applies for the system blower - does anyone have a ballpark figure on
> how much air it should be pushing?
>
``Much''. There are air-flow sensors inside the machine that will shut
down the machine if there aren't enough air flowing through the machine.

-- Ragge
Received on Fri Aug 15 2003 - 09:01:20 BST