Al Kossow wrote:
   There are some
ass-kicking (for the time) video cards for the very early
 RS/6000s that took up three slots (!). 
 They were based on the early SGI 4D chip sets.
 It would run the SGI flight simulator (I had a set in the RS/6000 I used
 for early PPC Mac development) 
 
It's called the IRISvision/MC.  I have one.
I've found that the later high-speed MCA graphics cards designed to work
with later MCA RS/6000's tend to be quite a bit faster.
Plus the IRISvision only supports AIX<4.
Peace...  Sridhar