I have a server with a new green motherboard that won't reboot with the
keybiard attached to it, but reboots just fine without it (this using
/sbin/reboot, red button always works ;-)
Maybe you whould try that with servers that need to be rebooted remotely and
see if it works.
By the way the keyboard is an original PC AT keyboard I took from a real
IBM AT and works just fine with my other machines.
-- Eduardo Kaftanskiekaftan@netup.cl