Mm, never looked @ it this way. Interesting solution.
Assoon as instability is back i'll give it a try.
I discovered, the R606 is very stable @ 800Mhz and Voltage 7. Any other setup and it is unstable.
So i mounted a extra fan on the R606 (sorry sidehack i know u don't like that), just to be sure its is cooling extra @ this freq.