For the lack of that i cannot see it ill just share where i had mine at concerning the qpi and core. For the sake of everything that overclocks period my memory controller was junk.. The mhz are rough figures but the voltage is spot on.
3.80ghz and 1600ish memory. 1.30 core and qpi 1.250-1.275
3.80ghz and 1800ish memory. 1.30 core and qpi 1.350
4.00ghz and 1600ish memory. 1.35 core and qpi 1.400 (1.45 @ 2000mhz memory
4.20ghz and 1600ish memory. 1.36 core and qpi 1.420
4.20ghz and 2000ish memory 1.38 core and 1.500 qpi.....
Yes my memory controller should be a dead man by now.
Why are poinsting 'ish' after memory frequency. Memory controller may be bad, but it must not that bad as you are saying.