Can you swap connectors on the mobo from the working ones to the non-working ones to see if its a mobo issue... or the bays?
Seems unlike two bays would go out... right next to each other... either a connection... or a bad mobo?

"If it turns out that President Barack Obama can make a deal with the most intransigent, hard-line, unreasonable, totalitarian mullahs in the world but not with Republicans? Maybe he’s not the problem."