Hm, did you buy an extra cheap Nvida Graphicscard from ebay perhaps? Its possible you have a non original card with a modified firmware. What doses https://www.techpowerup.com/gpuz/ (freeware) say about your card an firmware?
Hm, did you buy an extra cheap Nvida Graphicscard from ebay perhaps? Its possible you have a non original card with a modified firmware. What doses https://www.techpowerup.com/gpuz/ (freeware) say about your card an firmware?