Just tweaking the z800 bios and found:
Z800 Optional system BIOS change:
1. Set Intel Turbo Boost Technology**– Disable**
 
Only required  if connecting USB audio I/O devices. This setting will eliminate any audio
“motor-boating” or audio “popping” which may be experienced with USB audio I/O devices.
 
http://resources.avid.com/supportfiles/attach/AVIDHPZ800ConfigguideRevB.pdf  Look at page 7
 
To me that means that USB Audio Devices are responsible for Motor Boating or Audio Popping ? So WHAT  PCIe or firewire are guaranteed not to ! Interesting as to why they would make such a statement ! Anyone care to comment
 
Maybee i am understanding it incorrectly !

and THIS :
 
http://avid.force.com/pkb/articles/en_US/troubleshooting/en408451
 
Its confirmed , maybee i am late to the motor boating partee

It clearly states In the second linked article that the issue might be caused when the Intel Turbo boost Technology was used, on that particular PC when using a USB interface with that particular Avid video software.

I think you are not understanding correctly.

mudgel
It clearly states In the second linked article that the issue might be caused when the Intel Turbo boost Technology was used, on that particular PC when using a USB interface with that particular Avid video software.

I think you are not understanding correctly.

Misunderstood gotcha , I guess it leans towards this particular PC using FireWire or PCIe if I want that option enabled in the bios !with that particular AVID software !
Can I say that because platinum is so awesome you can leave it enabled with this PC z800 , because platinum has a AUD.ini file called DropoutMsec which takes care of motor boating and then enjoys the benefits of intel turbo boost technology .

Thanks cakewalk

C states (power saving) and turbo boost ("on-demand" overclocking) manipulate processor on the fly (frequency). It is long time known that such manipulations can be hard to deal with in real time / timer dependent (audio/video) applications. So general recommendation always was "disable power saving, put the system into 'performance' mode". Turbo Boost is a "standard" over-clocking now, but it is still over-clocking. So I think some particular systems, with particular components and software can have problems with that, I mean that can be expected.
 

Optimizing my current daw 2010 I turned off C-states(coreparking kind of) and dynamic overclocking(that a core overclocks before feeling need starting a new core).
 
This made PC overall more calm and collected with cpu load.
Smooth spread of load over cores since no restrictions applied.
Never touched it since.