Stuttering in Sonar X3 Studio

Good day to all:)..I have searched all over the internet and tried just about every proposed solution to remedy the stuttering I"m experiencing in Sonar X3.I have deduced the problem to the Sonar software conflicting with Windows 7 Pro. My reasoning is because  I have 3 different audio interfsces,Scarlett Solo, M-Audio Transit USB and Lexicon Alpha and I get the same random stuttering.I have a pretty powerful computer  and an abundance of Ram so I know it's not a lack of power.I tried all the optimizing suggestions such as change power plan to high performance.Disabled anti virus software,.Disabled Wi fi..I downloaded the latest drivers for my audio interface.And a host of other things all  to no avail. I get the random stuttering with only a few tracks of soft synths. I had the same set up on my older computer and it was rock solid.And I didn't even bother to optimize that computer. Heck,  I left Wifi on even when I was mixing down because I was so comfortable with how stable it was .My newer computer is about 3 times as powerful, 2X the Ram and I am having these stuttering issues. Its just so perplexing. I downloaded Latency Monitor to maybe track down the culprit and thought I might have had something there. I was getting a high reading with something related to the USB port..Something like USB 3.0 just extender. I actually  uninstalled it disconnected a few USB  ports.  And still was getting random stuttering..
 
The bottom line is through all the dissecting and optimizing and disabling I still came back to the simple fact that I never had to do any of this with a computer that was of lesser power.And I tried to mimic the same set up I have with older computer to my newer one..I feel like it's a simple fix like there is some driver conflicting with another but I just do not know what it seems to be..Any help would be so greatly appreciated.. Thank you.
 
Sonar X3 Studio
M-Audio  Transit USB audio interface ( I know this is a older interface but was rock solid on older computer.)
Dell Precision Workstation 4800MQ 
Win7 64 Pro.
Intel Core i7-4800MQ, 2.7 GHz
1Tb SSD.    32Gb Ram
 
   

Which Buffer Size Setting Should I Use in My DAW?
https://www.sweetwater.co...hould-i-use-in-my-daw/

Hey Promidi, I have my latency of audio interface set to 512 figuring that would certainly be safe .As I said in my initial post I experienced no issues with stuttering with my older computer and the latency was set to 256.
And as far as the core parking and AUD.ini. file I'm afraid you are going to have to explain how to do those task..Always interested to learn how to do new task.Thank you!

As far as Core parking, go start run and enter the following: (copy and paste rather than typing)

control.exe powercfg.cpl,,3

Then under Processor power management (Should be second from the bottom), set both Minimum and Maximum processor rate to 100%.  Make sure System Cooling Policy is set to Active (This should be set to that already)

Regarding the AUD.ini file

Your AUD.ini file should be in your X3 folder which is in this folder %appdata%\Cakewalk.

On my system, there is an AUD.ini file under a "Sonar Platinum" folder and another one under a "Cakewalk Core" folder.    Rename it rather than delete it.  I , personally would turn off before doing the AUD.ini thing.

And I was just thinking about Sonar X3 and the CPU performance meter modes.  The meter was enhanced in Sonar Platinum with the additional modes. 
 
They are available in Cakewalk by Bandlab, which you can install for free, alongside of Sonar X3.  https://www.bandlab.com/products/cakewalk
 
All of your plugins from X3 Studio will remain available for use in the new Cakewalk, in addition you get all the advantages of the core Platinum DAW feature set for free, plus any improvements made this year through updates issued by BandLab.
 
And you can keep using X3 Studio if you wish, but also have the opportunity to test the latest and greatest!

HIBI
... I disabled "Intel EIST" and "C1E Support" on BIOS (mine was AMI BIOS) then stuttering was gone. (Maybe these are called C-STATE Tech, Enhanced HALT State and etc on the other BIOS)

Excellent suggestion.  OP said he tried "all the optimizing suggestions" but some folks tend to forget about (or are afraid to mess with) anything in the BIOS.  This one is definitely worth trying if he hasn't already.