Did this mb come installed in a Dell pc? If so you need to state the model #and serial # (if present). If it did come in a Dell system, I can't believe that I spent over 1 hour looking for a Chaintech bios when all the time it was a Dell oem board and you failed to provide that info in your original request. If I'm wrong, I apoligize for the outburst and if I'm right, then you owe the apoligy.