Customers Mini-SAS M.2 Keeps Disappearing

Hey Guys, Sorry if this is in the wrong spot. I have a customers pc that keeps having issues. He has in intel SAS SSD connected to a mini Sas HD connector on a ASUS X99-A. He messed with his bios a couple weeks ago and bricked the Bios itself (How? I am unsure). We got his pc working again and his drive disappeared (This is the only drive on the system) after about an hour of messing with hyperkit and what not we got it working again...a week down the road (Today) he is having the issue AGAIN! His drive has disappeared! What is going on here? Is there something I am missing?