I've got a cluster of computers that includes a significant number of old Compaq Deskpro EN's. As of right now, all the Compaqs require a keyboard to boot successfully, which is something I'm trying to eliminate. (It's a pain to go around after a power outage with a keyboard and boot them all up.) The problem is that there is no way in the BIOS to change this; on the other machines in the cluster there is usually a "Require Keyboard on Boot" option. I've looked around on line a bunch to try and find a new BIOS, but I'm not having any luck.
Can I replace it with another BIOS? Is that feasible? I don't know much, obviously!

Thanks!
--Peter