Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!apple!agate!riacs!sheila.arc.nasa.gov!lam From: lam@sheila.arc.nasa.gov (Tony To Lam FSN) Newsgroups: comp.sys.sgi Subject: 300 series upgrade Message-ID: <1990Dec5.231722.12287@riacs.edu> Date: 5 Dec 90 23:17:22 GMT Sender: news@riacs.edu (James A. Woods) Reply-To: lam@sheila.arc.nasa.gov (Tony To Lam FSN) Distribution: usa Organization: NASA Ames Res. Ctr., Mtn Vw CA 94035 Lines: 16 I have couple questions regarding the system upgrade for the 4D machine. 1, Is it possible to mix 2 25 MHZ and 2 33 MHZ cpu in a system? If so, what would be the restriction on their use? 2, There is an option called 'Multibuffer' available along with the VGX. It provides an additional 64 Texture bit planes. How do these extra 64 bits work with the 32 bits already in the VGX? Through what gl commands do you use to access these extra bit planes? Could someone provide me the insight? Thanks Tony