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

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