Gigabyte´s boards are not that great VRM wise i read somewhere before. Pretty sure i will be buying MSI next purchase and probably from Amazon at that. Ocuk have not painted themselves in glory here messing OP around.
Gigabyte x390 boards have the best VRM's and I am using one now, runs sweet and is rock solid at 5ghz. Asus have dropped the ball with not only poor and difficult RMA's but also the quality control is no where near as good as it was years ago. I had always been an ASUS fan because I had never had any issues with there boards.
but building my last system with an asus X390 rog extreme not a cheap board, it was DOA just the power button light and bios LED flashed on and off. afters hours spent with the board in and out of the case, different PSU along with different ram. the only thing left was the board itself. So I purchased a gigabyte X390 Aorus extreme
and it booted first time and overclocks real easy.
So I RMA the board back to etailer, and it was tested and found faulty, so got a refund the same day. I am pleased the Asus didn't fail in 3 months or it might well have been ASUS RMA via etailer. So until Asus improve there RMA service and quality control I will no longer be buying any boards or anything else from them.
A top of the range board should never be DOA. not at that price! Asus should not rest on there laurels of years past as other manufactures have caught up and exceeded them in many ways including RMA.