reconfigure raid card

I had to replace my mainboard do to some defect ram slots. My problem is now that the config from my raid card has reset itself. before I had a two drive raid zero setup, and now I have tow separate drivs. I use a hardware raid card (PEXSAT32 from StarTech.com). I could reconfigure the raid, but I don’t now What then happens to my dater. on it is all my importend stuff, all projects I works on in the last years, all my data set, simply the last years of my live. I don’t have the ability to back it up do to a lack of save space, and I try to avoid, puting all my data in the cloud.

Maybe some one has some experience with such a kind of raid controller and can give my a advice on, if a should simply reconfigure the raid, or not.