ibisjoe Posted January 21, 2011 Share Posted January 21, 2011 We have a machine that is running software using a UMAC chassis with a MACRO CPU that is controlled by a Turbo PMAC Ultralite. We would like to experiment with transitioning the application to utilize the PPMAC but would like to maintain all of the UMAC wiring etc., so that the machine could be run as normal by switching control back to the MACRO CPU. Is it possible to alternately command the PPMAC or MACRO CPU to "dummy up" and not talk to the UMAC hardware so that we would not have to pull CPU cards to do that (while progressively developing the PPMAC application)? Link to comment Share on other sites More sharing options...
Sina.Sattari Posted January 21, 2011 Share Posted January 21, 2011 Unfortunately this is not possible. Both cards will try to communicate on the backplane and send conflicting data. You can only have one CPU in the rack at all times. Link to comment Share on other sites More sharing options...
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