On Wed, 2024-03-27 at 11:49 +0800, Ethan Zhao wrote: > so, yup, basically, the signal integrity is not good enough. > Though the function could work, its performance will be impacted. FWIW I've replaced the motherboard and this is gone. So it's likely a signal integrity issue of the motherboard. -- Xi Ruoyao <xry111@xxxxxxxxxxx> School of Aerospace Science and Technology, Xidian University