[rescue] Rescued: SGI Altix 450

Bob Darlington rdarlington at gmail.com
Thu Jul 28 18:01:46 CDT 2016

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.


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

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