[bjames]

Hi all,

I am thinking of doing an Indigo2 Extreme project and have a few questions.  The goal is part sentimental as my first sgi for me was a I2 r4400 195mhz zx machine that I purchased directly from SGI Canada as a rectified system (it was really a demo model) back in 1998. That machine is long gone and I thought it would be an interesting addition to my collection.  I want to configure this as a Coff version that can run Alias PA v6 or earlier (old interface) that would have been used in 1993-1995.  So my questions are:

1.  What version of Irix should I install?  5.3, 6.2?
2.  Are Dallas chips easy to source?
3.  What exactly is a COFF operating system?

Thanks