Tahoe
From Computer History Wiki
The Tahoe was the code name for the Power 6/32 from Computer Consoles Incorporated that the CSRG had ported 4.3 BSD to in the 4.3 BSD Tahoe releaase.
Although the Tahoe did help seperate out a lot of VAX specific code from the base, allowing BSD to become more portable, the Power 6/32 machine quickly disappeared off the market, and not much is known about them.