> I think, Suns don't use 33bit in general, i didn't try this, but i think, the
> SparcStation ELC/SLC needs 33 bits, other machines may need 36 bits. Alphas
> sometimes need 33 bits (AlphaStation 200?), sometimes 36 bits (Multia?
> AXPpci33?)
> 
> I never tried in detail, but as a rule of thumb:
> 
> 33 bits are hard to get. 36 bits are easier to get.
> 36 bits run nearly everywhere, except some rare machines needing 40 bits.
> I'm using the standard 36 bit modules in Alpha, Sparc, IBM RS/6k, SGI and lots
> more here.
> 
> HP Modules (9000/700 series and some newer 400s) are also 36 bits, but be
> careful here, they just look like PS/2 but have a slightly different pinout and

Like PS/2? Do you mean that IBM PS/2 have their own type of SIMMs?

Thanks for your valuable info.
Pavel.