Asus A7V266-C Hi multiplier problems

I'm having problems with HI multipliers using A7V266-C.

A detailed story is here:
http://forum.oc-forums.com/vb/showthread.php?s=&postid=2013002#post2013002

A short description of the problem:
I can get
HI multipliers with 100 MHz FSB
or
LO multipliers with 133 MHz FSB
but *not*
HI multipliers with 133 MHz FSB.

Is there something with this mobo that prevents that?
Or am I doing something wrong?

I have unlocked L1 bridges, and got HI multipliers using the socket method (AJ27 and AH26 connected by a thin string).

I have just run out of ideas, so any help is appreciated.