SSD and SATA HDD get switched?! Windows boot problem on ASUS Zenbook

I just bought an ASUS Zenbook UX32A, it has an SSD 32 and SATA 500, I deleted the recovery and did a clean install of Windows 7 on the SSD (originally win was on the SATA) and I uploaded all the drivers and did some windows updates.

Problem: the laptop will randomly shutdown once a week or every two weeks, and the boot order will get switched to the SATA. Obviously i will get an error "windows cant boot" etc. I have to manually go in bios and switch it back to the SSD.

What the fugees is going on here?

I scanned the computer with Avast and did the boot scanner, 100% clean
--- Update form last night:
I just updated my bios and followed instructions from ASUS, and when i restored default settings, the default again when to the SATA drive and i couldn't boot until i switched to the SSD, How do I get my system to recognize the SSD as Default boot?

What is going on with the system that it randomly will shut down and switch to the SATA while im using it? this is the part that freaks me out and feels like something will eventually break here. #firstworldproblems #newlaptopdangers