Unless you Install WarpUP & try & use the PPC you will never know for sure on 3.1Roms & workbench alone.
The ram will configure for Workbench & sysInfo sees the 040 CPU fine. It will never see your PPC chip. The program aint coded to display the PPC Chip parameters.
Technically, no PPC card will ever be found unless you install OS4 Classic. OS4.0 classic will see ONLY the ram on your PPC card (64) & imho, 64mb on OS4 Classic is as much use as a chocolate fire guard!
Good to hear you are using a hefty PSU! ;-)
*Edit*
When you turn your Miggy on from Cold, immediately press & hold the Esc key. (It should be the same on BPPC cards as well as CSPPC)
You should see the BPPC cards Bios screen. If you can, its working & by powering on & immediately pressing both ears on mickey, your Amigas Early Startup Screen should show you have a working board under Expansion.
Tbh, I think you are expecting your PPC card to be doing more than it is, but it wont actually, unless you really use OS4.0 Classic.
Hope this clarifys things a little for you! :-)