This message was posted on behalf of Intel Corporation
Thank you very much for taking the time to reach the Intel® Communities Team.
I understand you are facing some issues updating the graphics drivers for your Intel® processor. Allow me to help you regarding this issue you are facing.
In this case, I would highly recommend you to use the Graphics Drivers provided by the manufacturer of your motherboard. You can download these drivers by clicking here.
Once you have the file to complete the installation make sure you have the Microsoft Basic Video Adapter and then install the ASUS drivers.
In addition, you can perform a BIOS and a Chipset update to make sure you will not have compatibility issues.
After lots of mucking around it turns out the Asus PG278Q monitor only supports graphics cards with the G-Sync feature.