Question Gigabyte motherboards stutter

[qualread]

I have two computers with Gigabyte motherboards, one is z170 other is old AMD.
Both have same kind of lag where display freezes for no apparent reason for 1 second.
On z170 i updated chipset drivers from intel website and overall experience got better but it's still lags.
Tried almost everything: high perf w10 plan, disabling c1e and speedstep, overclocking on i5 6600k(switched to i7 7700 because i thought it was bios issue with skylakes)
Tried Linux - same thing.
Reinstalled both on hdd and ssd(they have blue score in crystal info).
Literally nothing running in background when i experience the lag.
Disabling av does nothing too.
Anynone experienced this crap? Any remedies?
===
Upd in msi afterburner it looks like big frametime spike.

 

[Lutfij]

Welcome to the forums, newcomer!

The only common thing between your two system's is the make of the motherboard. They aren't of the same platforms.

When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time. Since you mentioned two systems, we'll be seeing two sets of specs.

To add, please include a video showing the lag you speak of. Host your video on a site akin to Imgur or their ilk and then pass on a link to the video for us to see.

Reinstalled
Where did you source the installer for the OS? Did you install the OS in offline mode, to later install all drivers in an elevated command while in offline mode?