How can I set my BIOS to factory Default?

I am having trouble with my Dell Precision Workstation 650 in that I have installed a 2nd SATA HDD that is connected to the Promise SATA PCI Controller card.  I've got both HDD's set up as 1+0 Stripes (though I'd prefer to set them up as non-RAID) and I keep getting a system BIOS message asking me to hit F1 to continue or F2 to enter Setup.  This happens right after the system runs the Promise SATA BIOS and finds both HDD's.  Since it is System BIOS related message and we cannot figure out how else to get rid of the message, we'd like to try to go back to factory default settings.  The BIOS is currently Version A05.

 

If anyone knows how to configure the SATA arrays to a non-RAID setup, that would help out as well.

 

Thanks,

JErold