On some mobos you must go to manually setting the vcore to adjust the LLC. It's a poor design but it is what it is...
You could have multiple issues besides the heat so this may be very frustrating but in the end we might be able to sort it out.
In regards to the radiator fans, I have not checked the latest H100 "fixes" but you might be forced to have the fans blowing on the rads instead of trying to pull air thru the rads. These low static pressure fans used for H2O kits require high fan speed to create enough static pressure to force the air thru the restrictive rads. I'd be surprised to see the normal fans be able to suck enough air thru the rads to cool properly. It's worth changing the fan set-up to see before you spend more money on cooling because you'll need one of the top 5-6 HSFs for a FX-9590.
After you swap the fans and see if things cool better then you could try a couple manual adjustments if you want. Set the CPU frequency to 4.4 GHz., the vcore manually to 1.47v, the CPU-NB to 1.3V, the HT to 1.25v, HT frequency to 2600 MHz., disable Cool and Quiet, C1E, C6, Turbo mode and if your running the rad fans off of the CPU fan header make sure the fan speed is set to 100% in the BIOS.
The whole point of adjusting the LLC is to keep the vcore voltage at whatever you set it too manually. The only means to know which LLC setting works best is to stress test and see what OCCT shows for variation.
Building a reliable PC involves more than just assembling the parts. You need to be able to configure all of the BIOS settings appropriately. This can be quite involved and frustrating as it can require a lot of trial and error with stress testing. It is however often the only means to get a 100% reliable PC.
11:53 PM by