For your problem the answer was given i see to read the manual and check your config file. I suggest you remove all but one GPU's from the rig and get that one working before adding the second, third, fourth.. etc.  Do it incrementally updating your config file each time until you understand and become comfortable with the requirements of the config commands for a stable system and to prevent actual GPU damage due to errors in config scripts such as setting a volt to high and pushing a card to hot so it expires permanently as it can happen with incorrect config variables stated especially in a mixed gpu rig.

For eg a 6 gpu rig should have 6 separate statments for each variable such as cvvdc etc or just one for all GPU's (unwise due to hardware tolerances as each GPU is its own beast but this can be a good debug test or place to start from if learning however know your GPU limits and never exceed the lowest threshold or smoke and fire)