I tested systems that use SB600 & SB700 southbridges in the simulator and they booted and worked in LiveCD mode. AMD chipset motherboards will now work with Haiku which would not before.
If anyone wants to they can test and confirm this. Make sure to grab a very recent Alpha 3 RC image with IO-APIC changes.
The only other major issue left for couple of people is the error “did not find any boot partitions.” Hopefully that gets fixed in next release that way everyone will be able to at least boot into Haiku.