hey guys.. i notice that hv something quite interesting to ply with.. using power caculator.
v can draftly count how much v can OC our proc due to power consumed..
http://www.extreme.outervision.com/PSUEngine
using this llink..
at the cpu part.. select the proc we r using can calculate the power for OCed..
as i calculate mine:

6000+ stock speed 3000MHz @ Vcore1.47v(stock) 125W,
6000+ OCed speed 3371MHz @ Vcore1.47v using 140W;
6000+ OCed speed 3372MHz @ Vcore1.47v need 141W,  (mean cnt support by mobo..)

where i ever try OC my proc cnt boot at 3400MHz,
mayb it walled by the power consumed there make it around 3370MHz for max clock speed

i thk this is quite accurate with my proc.. how about urs?? lets take a try there..
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@lendew
whn u lowered ur multiplier mean ur cpu/ram divider also lowered, mean u oledi OCed ur RAM..
so u nid to lower ur RAM multiplier for stable it.. u can take a reference at the 1st pgs on the multiplier of CPU and ram divider table

*my opinion, higher HTT will get beter result in SPI compare to high multiplier at the same CPU speed

sure with low freq will effect the performance.. but as long as it get stable thn its good loh..
for me i will find out the max speed for cpu where at that speed i can get a max speed for my ram too..
example:
my 6000+ stock speed 3000MHz (200x15), ram800@ divider (cpu/8): 375MHzx2=750mhz only
so, let say i OC my proc to 3210mhz (214x15), ram800@ divider (cpu/8): 401mhzx2=800mhz
optimize my value ram speed at 800mhz, and HTlink at 1070 still comfortable for my mobo

*js an example for u 
**remember bro.. ur ram stock speed is at 667mhz so 800 oledi is tough job for it..