So I have to re-try getting a board RMA'd to bitmain.  I bought a brand new PSU to try to power that board up hoping I was using a bad psu and there was still no go.  For those of you who have fully opened their S7, what is the easiest method to getting the top off so I can remove the problematic board?  I assume the top comes off because you can't simply slide the board out of the casing.