He's got 12V because his magma cooling fan is working. eghm, remember you need to connect 12v + and - to both the 11A and 5A sections on the ramps board power plug. Also, does your ramps board and lcd light up when you plug in a usb cable to the pc? if that doesn't work there may be something defective. Check those and if no luck post a pic of your ramps connections.