First thing, to the gentle man right above this comment, Clevo is not Sager , both are very different companies. Sager is a re-seller. While Clevo is an ODM.
Secondly to the Author, the throttling you are seeing, where your multiplier is dropping down to 22x is because your voltage is too high and the voltage protection is kicking in (or the power limits are too low). Also XTU being a shitty overclocking app doesn't help Also the Origin System and the AVA direct system are the exact same thing, just branded differently by re-sellers, they are the Clevo P870DM-G.
Here are some bench marking results :
http://www.3dmark.com/fs/9225544
http://www.3dmark.com/spy/72267
Some even better results on the first page here :
http://forum.notebookreview.com/threads/clevo-overclockers-lounge.788975/
The same thread above some great OC clocking settings, both for a custom BIOS and for XTU, so you may want to give those a shot.
I have the same system and i run it at 4.6Ghz and +150/+300 on the GPU for 24/7 use.
@PAPUSAN - Those are things that most enthusiasts will do, not the general consumer.