Doctor Mike, See here for details of Sawtooth dual compatibility: http://www.powerlogix.com/support2/notices/pfdualg4100/ I was able to swap a dual 450 processor (from gigbit model) to my original single 450 Sawtooth. R >re; the first models of the sawtooth will not work dual processors > > >On Saturday, September 13, 2003, at 01:17 AM, Dr. M. Burek wrote: > >>I have seen the different options for installing dual processors in >>a G4 Sawtooth from the likes of Sonnet, Powerlogix, XLR8, and >>others. -- Rick Smykla rsmykla at verizon.net