This is the situation. When I bought my PC, it came with a controller card (with Ultra 100 Bios) that my drives were attatched to. Now, that card burnt out and I had to attach my drives directly to the mthrbrd and ever since I did that I've been getting a message during startup saying "Ultra 100 Bios not installed because there are no drives attatched". My PC still boots normally but I was wondering, how does my PC boot up if there is no bios installed?