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FX-9590 + M5A99FX Pro 2.0 Unstable

Level 7
Hello all,
I'm finally fed up with poring over the countless threads of how unstable these processors are, and I need some help with this system specifically.

Motherboard: Asus M5A99FX Pro R2.0 (BIOS: 2501)
CPU: FX-9590
CPU Cooler: Alseye H120D (Dual Fan 6 Pipe Tower Heatsink)
RAM: Take your pick: G.Skill Ares 2133 MHz 2x8 GB (Would prefer to run these if possible)
EVGA Super SC 2400 MHz 2x8 GB (Both matching pairs)
PSU: EVGA 600 Watt 80+ Certified
Boot Drive: WD Blue SSD 250 GB
Storage: Toshiba Deskstar 1TB 7200 RPM 3.5" HDD
Case + Fans: Aerocool Cylon with three 120mm intake and one 120mm exhaust fans.

The issue: Cannot get system to POST without the MemOK button. When it does POST and I attempt to make adjustments to the BIOS, it will restart and not POST and I have to force shut down and I get the "overclocking failed" message. Even if I restore all defaults and save and attempt to POST, the system doesn't restart and I have to force shut down and restart with the MemOK Button.

A short list of things I've tried:
Increasing vCore to 1.55 (Which is apparently what it's supposed to run at default)
Turning off Cool n Quiet
Turning off Core C6 State
Turning off C1E
Turning off AMD Turbo CORE Technology
NB HT Voltage to 1.25 and 1.26875
CPU/NB Voltage to 1.2875
Tried manually entering all RAM settings.
Tried DOCP
CPU/NB Frequency to 2400 MHz
HT Link Speed to 2600 MHz

And every combination of some, none, and all of these settings.

I'd like to ship this thing with the 9590 so I can at least learn something before I settle and put the 8350 back in it.

Any help provided will be greatly appreciated.

Thanks in advance!

Level 7
Did you ever get this figured out? I know a slightly old post.
Running the same board and CPU. Using Ripjaws ram, 32GB (4x8) 2133MHz.
I only ask the following because it wasn't mentioned (or I missed it), but did you try using the DirectKey button to see what it actually selects for mem speed to allow atleast getting past post?