Have you reinstalled the mother board AGP and chipset drivers?
This is usually the first thing you must install, or your graphics card will only work in PCI mode.
What is your mobo, and what is the chipset i.e Via etc!
Surface Pro (2017) vs Surface Pro 4
Where HTML5 is headed next
MacBook Pro v Surface Pro 5
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.