Hey guys, I need some help getting stable. I am trying for 4GHz with a 920 D0 on the UD4P. I was able to pass 12 hours of small ffts P95, but I can not pass large ffts at all. So I started increasing QPI/VTT and IOH one at a time trying to find a setting. But, I just can't get it. I went up to 1.455v but that didn't work.

Maybe it has to do with the memory timings? I am running OCZ obsidian 1600 kit at the standard timings, but I left the sub timings at auto. Maybe I need to adjust those? Advice is welcome as I have no experience with that.
Here are my settings:
GIGABYTE GA-EX58-UD4P bios F9e

>>>> Advanced CPU Features <<<<
CPU Clock Ratio*..............................:20
CPU Frequency .....(Ghz)...................:3,820Mhz (4,011Mhz Turbo)
Intel(R) Turbo Boost Tech..................:Enabled
CPU Cores Enabled............................:ALL
CPU Multi Threading..........................: Enabled
CPU Enhanced Halt (C1E)...................: Disabled
C3/C6/C7 State Support....................: Disabled
CPU Thermal Monitor.........................: Enabled
CPU EIST Function............................: Disabled
Virtualization Technology...................: Enabled
Bi-Directional PROCHOT.....................: Enabled

>>>> Uncore & QPI Features <<<<
QPI Link Speed*..............................:x36
QPI Link Speed* .............(Ghz)....... :6.87
Uncore Frequency...........................:x16
Uncore Frequency..............(Mhz).... :3,056
Isochronous Support.......................:Enabled

>>>>> Standard Clock Control <<<<
Base Clock (BCLK) Control*..............:Enabled
BCLK Frequency (Mhz)*...................:191
PCI Exxpress Frequency (Mhz)...........:100
C.I.A.2..........................................: Disabled

>>>>> Standard Clock Control <<<<
CPU Clock Drive (mV).......................:800mV
PCI Express Clock Drive (mV)............:900mV
CPU Clock Skew (ps)........................:0ps
IOH Clock Skew (ps)........................:0ps

>>>> Advanced Dram Features <<<<
Performance Enhance......................:Standard
Extreme Memory Profile (X.M.P.)........:
System Memory Multiplier (SPD)........:x8
Memory Frequency (Mhz).................:1,528Mhz
DRAM Timing Selectable (sPD) ..........:Expert
CAS Latency Time ..........................: 9
tRCD ............................................: 9
tRP ..............................................: 9
tRAS ............................................: 24
Command Rate (CMD) .....................: 1
Subtimings ....................................:AUTO

>>>> CPU Voltages <<<<
LoadLine Calibration.....................: Enabled
CPU Vcore.................................:1.28750v
QPI/VTT Voltage.........................:1.395v
CPU PLL.....................................:1.840v

>>>> MCH/ICH Voltrage <<<<
PCIE.........................................:1.50 0v
QPI PLL.....................................:1.180v
IOH Core...................................:1.160v
ICH I/O.....................................:1.500v
ICH Core...................................:1.100v

>>>> Dram <<<<
DRAM Voltage............................:1.660v
DRAM Termination ......................: AUTO

Rest of settings on Auto

Here is a shot of the subtimings:



Again, I want to get this stable but am stuck. I saw bluntsmoker was running bios F7. Maybe I should ditch this F9e and try F7 out.