did you setup the rig?
If yes, i need 1 clarification. how many cards can be used with un-powered risers?
The H81 board have an option to have the pcie slots powered so no need to powered risers. at the moment.
Ya i know that. i use asrock z87 killer. it too has 1 molex connection on board to support multi-gpu and 7 pci-e slots. but i found it can support only 4 cards on unpowered risers.
i also surfed around about the H81 and got some answers at litecointalk that it also has the same issue, even when 2 onboard molex connectoions are used. and also some said it works fine with 6 unpowered risers.
so i just wanted to confirm about that if you had setup ur rig
