FX 8320 overclock

[metalshegy]

Ai Overclock Tuner - Manual
AMD Turbo CORE Technology - Disabled
DRAM 1600Mhz @ 1.5v
CPU/NB Frequency - 2200Mhz
HT Link Speed - 2600Mhz
CPU & NB Voltage - Manual Mode
CPU/NB Manual Voltage - Set between 1.25v-1.3v (Increases stability for high overclocks)
CPU LLC - Ultra High (75%)
CPU/NB LLC - Auto
CPU Current Capability - 130%
CPU/NB Current Capability - 130%
DRAM Current Capability 130%
Cool'n'Quiet - Disabled
C1E - Disabled
SVM - Disabled unless running Virtual Machines
Core C6 State - Disabled
HPC Mode - Enabled (Some motherboards this has caused freezing so keep that in mind)
Amp Master Mode - Disabled

I have ASUS M5A97 R2.0,Power supply 600W, 2x4 gb DDR3 1866mhz and FX 8320 with corsair H75 liquid cooler and have adjusted all these settings. Only differences are HT link speed can only be at 2400Mhz and CPU LLC can only be enabled/auto or disabled (i set it to enabled). DRAM set to DDR3 1600Mhz and manual 1.5V. After a few stress tests i got a freeze while starting prime95 at 3.9Ghz on stock voltages. After that i tried slowly increasing CPU manual voltage but even at 1.38V it still freezes which i think is strange. Also CPU/NB manual voltage is 1.25V. Tried disabling HPC Mode, no improvement. I also tried leaving all settings on auto and only set cpu speed to 4Ghz, no freeze after 10 min prime test but temperatures 81 degree socket and 71 degree core  which are over the head. CPU VCORE on auto gets to 1.308V max. Any advice?