i hope you have write in wrong forum. This forum is for pfsense, not mikrotik....
after this i want to inform you that i have some mikrotik installs in alix and work fine.
I recommended to put the latest bios in your alix (v0.99) and install mikrotik with netinstall and pxe boot.
but you can also give a try to pfsense. The 1.2 final version work great!
I have the following problem with alix.3
my hyper terminal:
PC Engines ALIX.3 v0.98
640 KB Base Memory
261120 KB Extended Memory
01F0 Master 044A CF 1GB
Phys C/H/S 1966/16/63 Log C/H/S 983/32/63
Loading system with initrd
stop here no more text
CF - Mikrotik
open mikrotik via winbox noproblem
Thanks a lot