I'm not sure what I'm doing wrong, under the memory settings in my bios I've set the memory frequency to target for 1600 mhz but I think I'm only achieving 1400.  Am I'm reading this wrong?
 
 
I have an x58 evga e758-a1 motherboard in case that helps

Here is my BIOS settings, can you tell me where I went wrong?:   Also what is this feature for?  "Turbo Performance: Disabled"?


 
CPU Clock Ratio:                                       26x
CPU Host Frequency:                                139
Target CPU Frequency:                             3762MHz (139x27)
Target Memory Frequency:                       1672MHz
MCH Strap:                                            800MHz
CPU Uncore Frequency (MHz):                  2508MHz (18x)
CPU Clock Skew:                                       0ps
IOH Clock Skew:                                       0ps
Spread Spectrum:                                    Disabled
PCIE Frequency:                                       100
OC Recovery:                                            Disabled
Turbo Performance:                                  Disabled
 
CPU Feature:
 
 
Intel Speedstep:                                       Enabled
Turbo Mode:                                             Enabled
CxE Function:                                           C1E
Execute Disable bit:                                  Enabled
Virtualization Technology:                         Enabled
Intel HT Technology:                                 Enabled
Active Processor Core:                              All
QPI Control Setting:                                  Enabled
QPI Fast Link Mode:                                  Enabled
QPI Frequency Selection:                          6.400 GT/s
 
 
Memory Feature:
 
Memory SPD:                                            Standard
Memory Control Setting:                             Enabled
Memory Fequency:                                    1600MHz/2:12
Target Memory:                                         1672
Channel INterleave:                                   6 way
Rank Interleave:                                        4 way
Memory Low Gap:                                      3G
 
 
 
 
Parameters:
 
tCL:                                                            7
tRCD:                                                         7
tRP:                                                            7
tRFC:                                                          180
Commande Rate:                                          1T
Rest:                                                           Auto
 
 
Voltage Control:  (Also can you recommend any voltage control changes if any if I want to use less power/put out less heat?)
 
EVGA VDroop Control:                              With VDroop
CPU Vcore:                                                Auto (1.2625)
CPU VTT Voltage:                                      +0Mv
CPU PLL Vcore:                                         1.625v
DIMM Voltage:                                          1.350v
DIMM DQ Vref:                                         +0Mv
QPI PLL Vcore:                                          Auto (1.100v)
IOH Vcore:                                                Auto (1.100v)
IOH/ICH I/O Voltage:                                Auto (1.500v)
ICH Vcore:                                                Auto (1.100v)
PWM Frequency:                                     800KHz

RainStryke
CPU uncore frequency to X24

 
But i have a Westmere xeon x5690 not an i7 900 series bloomfield
 
In the bios it says the westmere-EP/gultown is supposed to be 1.5x while the bloomfield is supposed to be x2
 
 
EDIT:  So I went ahead and did as you suggested and changed the CPU uncore frequency to X24, it still didn't change how cpu-z read the memory frequency, still showing same result as the one I posted in the screenshot.
 
The only thing that changed was the NB Frequency.
 
Is it possible the ratios beyond 2:10 such as 2:12 are not properly working on my motherboard?  Again I have an EVGA e758-a1 and I've set the ratio to 2:12, but in CPU-Z it only shows as 2:10, what's going on? :(