[rescue] Rescued: SGI Altix 450

[Bob Darlington]

These work great for running the spindle motors in my shop.  I don't see
any reason why they would't also work to power 3ph computers.  If you're
running them on single phase power you have to derate them (also for
altitude), typically a 5HP unit to run a 1 or 2 HP motor.  I buy mine from
AutomationDirect.com, GS2 units if I remember right.  You can select the
output voltage, typically 208 volt, 3 phase for my stuff with 240 volt
single phase residential power in.

They work by taking in AC power, rectifying it, then inverting it back to
AC at a frequency of your choice.  This is a pretty clean way to go.

Do NOT use rotary phase converters unless by chance they had a major design
change over the years and spit out clean power.  Great for motors but they
cause early death of the computer running the milling machines.

-Bob

On Thu, Jul 28, 2016 at 4:50 PM, Richard <ejb at trick-1.net> wrote:

> Thats a nice find! What is the rescue story? Old skool found it in a
> dumpster?
>
> If there isn't a singlephase PSU option then not sure if something like
> the following would work. Often used to power
> workshop machines
>
> http://www.ebay.com.au/itm/Teco-FM50-3-0hp-Drive-Phase-Converter-Single-to-3-Phase-/162018748457?hash=item25b911e829:g:NUsAAOSwa39UzErl
>
> I've never used one but the theory sounds right...convert single phase
> to 3 phase....I suppose you would need to workout how much power you
> needed and get the right size...anyone?
>
> Cheers
>
> Richard
>
> On Fri, 29 Jul 2016, at 05:22 AM, Bill Braskey wrote:
> > [My first post!]
> >
> > I just rescued an SGI Altix 450, with 24 blades of 2 Itanium2 CPUs each.
> > Problem is, the "new" SGI are dicks about not releasing any documents or
> > patches unless you are under a paid $ervice contract.
> >
> > I was able to find a PDF of the basic user manual on manualslibDOTcom.
> > Does anyone here have access to other manuals, parts lists, firmware
> > patches, etc.?  I'm particularly interested in documents pertaining to
> > power supply options, as this machine is set up for 3-phase power and
> > really need to reconfigure it for 220/250V.
> >
> > How about a working Linux install image that will save me the time of
> > compiling my own?
> >
> > I'll post soon about other weird stuff I have...
> >
> > Cheers
> > _______________________________________________
> > rescue list - http://www.sunhelp.org/mailman/listinfo/rescue
> _______________________________________________
> rescue list - http://www.sunhelp.org/mailman/listinfo/rescue