DEC3860 / BIOS Settings

[infinisourcekc]

I have a DEC3860 that I've had for about a year now and for the most part it's been rock solid.  The latest firmware update was/is a bit rocky with Zenarmor and a few other issues with aliases in general.  I downloaded the most up to date firmware and loaded it onto a USB disk this afternoon and attempted to re-install the OS.  I could never get the device to fully boot from the USB disk using the serial-to-usb cable attached to the appliance.  I read that I needed to disable legacy UART in the BIOS.

Long story short... I believe I disabled the serial connection all together.  Is there a ways to reset the BIOS settings on this appliance?  I noticed a reset button next to the serial connection on the front of the appliance, but I believe all that does is restart the unit.  I tried holding that button in while powering it on and also pressing it while it was running.  Both attempts just restarts the unit.  I've looked for the hardware documentation and cannot locate it online as there doesn't appear to be anything more than the docs library.