[dd76]

So checked CPU usage, its in the low 40s so no worries there. I'm running 4GB ram. Tried upping the GPU share to 512 from 256, no change.
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Is your CPU low 40s with Windows empty desktop or with Kodi?

Close everything and make sure that CPU in Windows it 0 to 5% only (kill any process if you have to to bring it down) and then restart Kodi. Just to make sure you are not sharing resources with some virus scanner or Windows update background process.

Appreciate your help. It's low 40's with kodi actively playing a 3d MKV. What's odd is that it seems to change slightly each time I go to reproduce it. Sometimes I'll play the first minute or two of a 3D movie without any studdering. Other times, I'll see pretty significant studdering in the opening production company logos.

Also, I was thinking back, and I have noticed very slight studdering on some 2D movies. It's usually just a single moment in an entire film where I'll notice it, but it's definitely been there, so something's up.

I did try restarting my server as well, no effect though.

EDIT: Might have had some luck here. Rolled back to the old VGA driver on the asrock website (which I'm not sure if I ever used). Seems to be working well so far. Issue's intermittent though, so we'll see...

EDIT 2: Nope. The studdering is still persisting. The sync issue is gone, but still sometimes seeing severe studdering every few seconds. Just hooked up my old raspberry pi, that still works fine, so it's not a network issue (at least, not with the network itself, maybe it could be something with my build's networking hardware/software).

Any other ideas? This is a clean install so I can't be the only one with this issue, I know a few other people are using this same board.

I've had similar issues with the post-November builds on my J1900 and i3 7100u. What is your desktop resolution set to? I found setting mine to 1080p60 helped with the stuttering on 2d playback of 3d iso and mkv.

I did originally have it set to 1080p50.