[rescue] Sun 711 Multipack - Power Supply questions

[rescue at sunhelp.org]

Courtesy of Big Mike[0], I now have a 711 Multipack carcass--
missing some cosmetic items (most of the exterior skin)
but internally okay (backplane, connections, etc.).  However,
it's missing the power supply module.

I went ahead and took it because I thought it should be
possible to find docs on the P/S pinout and such--but I'm
having no luck in the Usual Places.  The missing power
supply module plugs into a small circuit board with an
18 pin keyed MOLEX plug (not ATX [1], but similar), plus
a row of 1/2" long pins (18 pins total [2]).  The power supply
module, from the pictures I can find, also includes two
decent-sized fans (not surprising.)

If anyone knows the part number or anywhere good to
look for specific info on this beast, please let me know.
If anyone *has* one of these and can verify the pinout
for me with a multimeter, I would be very thankful--but
I'm guessing that it's time to keep fumbling...er, searching.

Alternatively, if anyone has documentation on the pinout
of other contemporary Sun P/S modules with that same
MOLEX connector (such as the U1), let me know where
to find those.  Thanks in advance--

  --Rip

[0] Note to self--when going to the BarBQ House in Laurel,
  and applying hot sauce to fries, check to see whether
  "oleoresin cayenne" or "oleoresin capsaicin" is an
  active ingredient--don't just believe Mike when he says
  it's "not that hot".  Urmph--my butt did not thank me
  this AM.  I like hot hot sauce--but that stuff is designed
  to incapacitate.

[1] An ATX power supply has a very similar 20-pin keyed
  plug, but it's not quite the same.  An Ultra 1 P/S has the
  exact connector I need, but I'm not sure what the pinout
  is or whether it's the same.  I can test the pinout on the
  U1 P/S, but I don't have a proper 711 pinout to compare
  it to--and I suspect the current ratings are different
  anyway.

[2] There appear to be 4 pins tied to a trace labeled "5 VDC",
  4 pins tied to a trace labeled "12 VDC", 2 pins that might
  be ground, and 10 pins unused.  All the pins are about 1/2"
  long, in a single row spaced about 1/4" apart.  Since all these
  pins are connected to traces that then also connect to the
  ATX-style connector, I *think* that they're actually power supply
  back to the main fans.  (That seems silly, but I don't have a
  better explanation yet)  Why would there be power supply back
  into the power supply?  Why would both +5 and +12 be
  useful, when the fans are almost certainly +12 only?
  What the heck else would these pins be for?  There are the
  same number as the number of connectors in the MOLEX
  plug--but why?