Custom Resolution Mosaic Needing Sync II?

Title pretty much sums up my first question.

Trying to set up a 2x1 (or is it 1x2) square mosaic with a resolution of 3840x3840 of of a single A5000. Each display is set to a custom resolution of 3840x1920 @ 30Hz. Since it’s a custom resolution and refresh rate, do I absolutely need a Sync II card to achieve framelock? I heard somewhere that you absolutely need to for a setup with custom resolutions, but I can’t find the documentation on that.

Hi, did you solve the issue? I have the same question. Thank you.

Hi Luca,

I spoke with an engineer on this board who said that you don’t need the Sync II card to get framelock with a custom resolution if you’re only using one GPU. Some others I spoke with through other means said that I did need the card.

For my setup, I ended up needing it, but also because there was hardware down the chain that needed the Sync II card for us to be absolutely sure of framelock.

The easiest answer for you is to try it first without the Sync II card, since it’s gonna be over $1000 for that card. My other suggestion is to keep the resolution on all outputs on that card the same with the same FPS. I had one port on the GPU on a different resolution and that definitely caused an issue with my mosaic.

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