I've been able to set the fan threshold using IPMI but they seem to be getting back to defaults after power cycle.
Here is the how changed it.
set: ipmiutil sensor -n 4 -l 1050 -N 192....
verify: ipmiutil sensor -g fan -q -N 192....
Here is the how changed it.
set: ipmiutil sensor -n 4 -l 1050 -N 192....
verify: ipmiutil sensor -g fan -q -N 192....