Have you tried this? https://bitcointalk.org/index.php?topic=1541242.0

TL;DR - Turn off the power supply or unplug it, then press and hold the start button to drain power from the capacitors on the mobo. Then move the jumper from it's normal position to the jumpered position, and move it back. Connect the power and boot up, it will take you into the BIOS for you to make adjustments, but be aware it will have reset to factory defaults. If the defaults are what you want anyway, simply exit out and boot normally.