Hey big problems my friends...For one or 2 years my first slot this not work from my motherboards ....So i changed in slot 2 gpu ...Everything normal ...When i decover the slot 2 gpu will run on 8 native instade 16native like slot 1 ....So what i can...
Thx for advice,but the slot was death ...I change the mobo with z370-e strix...and everything is normal now.....I have send to repair that mobo z390-e.Have nice day.
