Check to see if the graphics card is seated properly.It may have moved whilst you swapped cases.
Make sure that you are using the graphics card slot and not the motherboard one.I know that sounds silly,but it has been done before.
What is ransomware and how do I protect my PC from WannaCry?
What I learned from my mentor, Oscar-winning VFX supervisor Phil Tippett
Siri vs Google Assistant
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.