Not an AMD user but is your voltage set high on the CPU?
Don't know that cooler, is it a top cooler? Or a nice cheapo, better than stock tho?
What do you measure temps with? I'm not an AMD user but Intel mobo temps are always inaccurate. Try Coretemp? HW monitor? Realtemp?
And always, your ambients air temp matters. If your in 100F temps right now...ack
Lastly cutting the very restrictive exaust cover completly out of the back would help. It's really blocking at least 1/2 the flow if not more. And the side fan part too. Dble check the front fan holes too.
I think you need to find out what your temps truly *are* at load, and deal with them.
Download CPUID hardware Monitor and run it to monitor temperatures. Download Prime95 to stress test the PC, running it on all cores and checking "Detect Rounding Errors". Run for an hour watching temps. If core temps exceed 75C, stop Prime 95. In any case, tell us what happened.
The case shows one fan stock, exhaust. What fans did you put where as intake?
You think your system is running hot? Have you checked the AMD web site for the thermal specifications for your cpu? According to AMD your cpu is well within it's thermal range. Temps in the low 50's are normal. Maximum cpu temperature is 62C.
I'm not sure why but a lot of posters "think" their cpu's are running hot when they are actually running normal.