5CFM fans do not move enough air to really help with the VRM sinks. When I was using my water block which handicaps air blowing in that area because of using W/Cooling, I had a 92MM fan blowing on the VRM sinks, etc. Now that did lower the temps some but I have seen people using 3 of those low CFM 40mm fans on Sabertooth boards and they were moving to larger fans since the small 5 to 7 CFM fans just don't move enough air.
As a side note, I would suggest that there is not a real way to calculate watts drawn by a cpu. Free HWMonitor from CPUID in the newer vesions gives a watts for the "package" which on earlier versions of HWM was related to the Cores themselves.
Wattage of a cpu is generally represented like this. The power consumed by a CPU is approximately proportional to CPU frequency, and to the square of the CPU voltage:
P = C V^2 f
(where C is capacitance, f is frequency and V is voltage).
The problem for me in that formula was with the capacitance. It is not known.
AMD has used a number called TDP for years and a few years ago began to use a new number called ACP to better describe power draw for users of many computers like in office or IT situations.
When you begin to really look into and try to get one's head around TDP numbers for Intel or AMD you will see a great deal of what seems 'double-speak'. There are no hard and fast ideas except in what the cpu makers release for TDP and that is not a peak value at all and is not an actual Watts rating for the cpu.
In looking I found that AMD says they finally drilled holes in a cpu to allow internal monitoring of a K-10 cpu I believe it was and they then moved to an ACP power consumption spec for mostly server type cpus.
So for someone at a DIY level, to actually predict how much power/current a particular cpu will consume is rather far outside real predictability. IMO.
It is for sure that your overclocked FX-6300 draws some hefty power and the heat from the FX cpus is a huge indicator of such conditions. You don't have heat given off without hefty power draws.
You say that board sucks because the North Bridge makes the cpu throttle a lot and I expect it is not the CPU_NB at all but the built in safety net of the VRMs that supply power to the cpu that are getting either hot or are having a huge current being drawn thru them and the board senses such and reduces the cpu speed to reduce the power that would need to be supplied to the cpu.
Sorry for so wordy but there are times when certain posts/ideas just seem to need a little extra explanation to the extent possible. We are all in a bad spot trying to supply enough power to support FX processors when over-speeded and to deal with the huge HEAT put off by the processor and power circuits when the cpu is being over-sped. All that said if the safety nets built into the FX processors and the boards are not defeated, the FX processor can be used on many boards. It is when we turn off all the green stuff and turbocore and have ALL cores on and overclocked, that we really need primo boards and cooling.
RGone...