Erik,
There is nothing that you can do from the O/S environment; you need to fix this first at the raw BIOS level.
Start with the machine powered off. Pressing and holding the power button should result in beeps coming from the onboard peizo speaker at a rate of one per second. After the third beep, let go of the power button. The system should then (after a few seconds) display a menu that includes F2 as the selector for entering Intel(R) Visual BIOS.
If you are not hearing anything from the speaker, you want to press and hold the power button for just over 3 seconds. If you hold it too long (i.e. for 4 seconds), the chipset will power the system back off. If it does, try again and hold it for just a little less time. If you then get to the menu, great. If you don't, let me know. Include your board's version string (there is a sticker near the back panel connectors that provides the board's serial number and "AA" number; I want to know what this "AA" number is; it is the part of form "AA G#####-###", likely it will be something like: "AA G74240-402").
...Scott