I didn't know the system specs tab was there lol.
Anyway FX Cpu's overclock like dreams. However even with these boards running optimally even on an FX cpu the mosfet's and chipset heatsink can reach temps as high as 75C at stock volts.
I'm my experience, we had to remove the heatsink on the chipset and use a flat edged razor to clear the paste/ foam off. Use Extreme Goo Gone spray to clean it all off, then applied arctic silver ceramique 2 (none electrically conductive) across the 990X core. From there we saw an immediate 15C drop alone, so we were seeing 60C max on the northbridge. Then we mounted a 40mm fan to the heatsink which allowed the chipset to sit at a stable 35C continously.
We also saw benchmark score increases from the drastic decrease in chipset northbridge temperature. Since the AMD engineering guidelines for thermals will throttle the northbridge/ hyper transport throughput when exceed 65C. Since they say it's about 68C max with ambient temp in the normal range.
Apparently the contact pressure increases when you remove the foam under the chipset heatsink. Which allows a better core to heatsink connection to improve stability. Since you do not really want any component sitting higher than 55C, since 55C is general when parts fail in time. Not including CPU's and GPU's.
Good luck! These FX chips overclock like dreams but prepare for a bit of heat when pushing your limits.