IRIX runs indys 32bit. I would assume it runs the challange s 32bit as well, though I'm not sure. All SGIs newer than the indigo (so the indy, i2, etc) support 64bit mode, though some early indy/i2 proms may not be able to deal with 64bit code. Nick On Mon, 6 Aug 2001, George Gensure wrote: > The R5000 Indies are, in my experience 32 bit systems. Feel free to smack me > down if anyone has contrary information, however. > > George Gensure > > On Mon, 6 Aug 2001, Brandon Barker wrote: > > > I will be purchasing 2 SGI Indy R5000 models from reputable.com, and was > > curious if these are 64 bit systems or 32 bit systems (for that matter, are > > all/any Indys 32 or 64 bit systems). My guess is 64 because I wiould think > > IRIX has been 64 for quite some time, but was curious. I use Linux on x86 > > but will probably use IRIX for a few weeks on the Indy's until I become > > familiar enough with the machines to try installing Linux. BTW, does gcc > > work on IRIX? > > > > Thanks for the info, > > Brandon Barker > > >