12 megs of ram missing?

[T3000]

Heya,
Recently installed a FastLane ZIII w/64mgs ram into 3000Tower/3640 with 16mg of zip ram. Workbench shows 69.5mgs fast and about 1.9 chip. Show Config reads 16 fast, 52 fast, 2 chip. The numbers somehow don't add up. Shouldn't there be 80 fast? There is about 12mgs missing. :-o   I really don't want to pull the zip chips.

Any suggestions.    

...and no, the extra zips won't be up for grabs either. I have an extra 3000D that is in need of some more ram.
Thanks.

[Crusher]

You don´t have to rip the zips off. It is the Fastlane that needs some configuration. So check them again  :-)
If you don´t have the manual then you can download a german version from Amiga Hardware Database
On page 20 setting 5 should be the right one. Have you checked the Fastlane-mems so they all work? Meaning checked them 4MB at a time?  :-)

[T3000]

Thanks for the direction. Was gonna look there first, but can't read German.  The illustrations showed me the way. 81 megs total fast ram. Now I need to get Buster-11 and a couple other chip updates to use the scsi controller.

[Crusher]

Great that it works. Can you post some benchmarks and how you installed everything? When you get the scsi to work.
Me and others would be glad.  :-)

I fried my board with an active terminator.  :-( I´ve asked the french Amiga Repair center and they told me how to repair it but I think it ends up with sending them the whole board.