I personlly never used EDA but with vsphere 5 and auto deploy would make it a little redundant wouldt it?
What happens if you run the hp iso as a manual install? does it all work ok?
I recently installed HP's ESXi 5 image onto a heap of BL620 G7's which have the serverengine 10GB CNA cards in them (which is now Emulex after they bought them out) the HP ESXi build worked perfectly but I wasnt using EDA.