Hi ThebigBient, The 240hz with HDMI is up only when the DCR option is activate in the OSD option of the monitor, have you activated this ?

Yes, with HDMI the problem is resolve, when Windows startup the PG32UCMD goes to 240hz + Gsync, i don't understand why with DP cable there is a conflict with other monitor... Thank you PiPoLiNiO 

Hi PiPoLiNiO, Thx for reply, but your solution is not working for me when i changed or switched the displayport cable.

Hi guys, I'm talking to Asus after-sales service at the moment and we might have a lead. This remains to be confirmed but it could be a conflict with another screen (dual monitor), for example mine is an Asus PG278QR at 165hz with the native Gync, an...

MSI RTX 4080 Suprim X Thx Aureliann_ROG, I replied to you by private message