afaik
supermicro h8qm8-2 ( http://www.supermicro.com/Aplus/motherboard/Opteron8000/MCP55/H8QM8-2.cfm )
and
tyan s4985 ( http://www.tyan.com/product_board_detail.aspx?pid=271 )
are only quad socket 1207/ f boards on market discounting sunfire x4600-m2
query is two fold
1 what is future of quad core barcelona support on 1207 / f 2 what are odds of these boards supported
i do not yet own either board but linuxbios support would sway me
zw
ps
http://www.llnl.gov/computing/hpc/resources/OCF_resources.html#zeus http://www.appro.com/product/server_1Uxserver_opteron.asp