PCI card dimensions query

["francis olsen" <freddy8197@hotmail.com>]

What information is each of the figures 5-1 to 6 giving with WRT the dimensions a 32, 64 bit - 3v, 5v, universal PCI card may take?

 

For example, starting with fig 5-1, this seems to define two sizes only for a 5v, 32 bit card. Infact, i have been told this interpretation is wrong and  is true for a 64 bit version as well. This raises the question as to why figs 5-3 to 5-6 also show dimensions for 32 and 64 bit cards seperately.

 

Thankyou,

jmc