Thanks for the reply!

Currently I have these settings:
Cpu clock ......... 23x
QPI ................. 36x
unCore ............ 24x
SPD ................ 12.0

I found these values (I don`t know what they mean):
QPI/vtt ............1.175
CPU pll ............ 1.800
IOH ................ 1.100
DRAM ............. 1.500
Command rate .. 2

ram: 8 8 8 20

...and a lot more setting, which I leave on optimized defaults.

this is set by optimized defaults.
I only tried to set the uncore and SPD to 3200 / 1600.
I boots without error, but after the self test nothing happens.
Blank screen.

Which of these is v-qpi?
Could you be more specific what is the name of the setting please?
I don`t have a clue what most of these things mean.
thank you!