P5B Deluxe MB overheat

[tempoct]

Hi,
My mobo temp is reaching 45c on light task and idle. Anyone know where should I put the fan to reduce this? Already have two fan blowing from the front (low speed), CPU sink fan (Ninja Rev B, full speed), rear fan (low speed). The case is Antec P150, stock PSU.
I oc a bit but no overvoltage applied. CPU temp is about the same as mobo temp which is surprising. I've moved from colder/dryer environment in SoCal (23-25c room temp) to hot/humid weather in Thailand (30-33c room temp).
Any suggestion would be appreciated.

 

[SerpentRoyal]

Higher ambient = Higher case temperature. More air flow will probably help, but only by a small margin. That board also runs HOT with 8 phase.

 

[tempoct]

What is max safe temp of this board?

 

[SerpentRoyal]

Probably better to keep it under 55C.