Just wanted to check in on this, so that other Level 10 GT users would be aware. When I use the front panel headphone jack from the case, I had major interference from the entire system.
I am running the following: Processor: Intel Core I7-6700K @ 4GHzCooler: Corsair Hydro Series H90Motherboard: MSI Z170A XPower Gaming Titanium EditionRAM: Corsair Dominator Platinum 16GB DDR4 24000 (CMD16GX4M2B3000C15)PSU: Corsair HX850 850W 80PLUSGPU: MSI GTX 980 Gaming 4G LESound: SB Recon3D Fatal1ty ProOptical: Samsung SH-222BB/BEBEHDD0: OCZ Trion 150 SSDHDD1: WD Velociraptor 300HDD2: WD Raptor 150HDD3: Seagate 1TBHDD4: Seagate 1TBOS: Windows 10 Pro 1607Case: Thermaltake Level 10 GT (best case ever)Battery Backup: APC 1500VA LCD
I plugged the correct front panel audio connector into the SB sound card. If I used the headset on the front panel I would hear my mouse moving. I would hear the GPU cycles, CPU cycles... it as very audible, but livable if I was gaming. If I plugged in my mouse and keyboard on the front panel, the noise would amplify ten-fold.
Since I recently had to take a part my system for a rebuild, I checked out some resources online and found this: https://www.techpowerup.com/forums/threads/article-fix-front-panel-audio-emi-noise.187276/
This fix worked like a charm! It's like I have a whole new sound system! Everything is so CLEAR!!!! I hear things I've never heard before!
Hopefully this will help some folks in the future.