Max. Count of Process Cards?

Hi all!



Want to build me an oldschool HD Rig with ultra cheap Process Cards and PT HD 7.4



In the beginning of HD (2002) there was stated that a maximum of 7 Cards (1x Core + 6x Process) can work together.



Ive read carefully all the pdfs and found a limitation of max 3 Process Cards in terms of Digidesigns "Expansion HD" Chassis.



Question: This limit only affects the Digi Chassis or also the Magma Chassis? (i.e. P7R464)



Anyone who successfully ran 6 Process Cards (+Core) in the past?





Thanks,

Osterhase