Remove the new variables to the situation, mainly being the prommy. Just remove the electrial parts of the system from the motherboard and try to power-up the board, you can keep the evap attached to the CPU and it'll absorb the heat produced, just don't run it too long as the copper can only absorb so much heat. Once you verify that it isn't a hardware problem then focus on the prommy and getting it to fire up correctly, perhaps it is misreading something. Honestly I don't think it's a problem with the prommy but that's the last step, I'd first suspect the ram not enjoying a particular voltage or timing and then perhaps not enough vcore but I don't know enough about the system.