R9 290 can't drive 144hz on ACER XB271HU Monitor w/o Flickering

[fatalpee]

My monitor flickers at 144hz. In fact anything above 85hz. 

 

Tested the monitor with a separate PC with the same DP cable with a NVIDIA 1060 at 144hz no problems. It is a G-Sync Panel so maybe not working natively with an AMD GPU. Been like that for the past 4 years.

 

Tried enabling/disabling every setting to every degree i.e. Overdrive/Overclock/sRGB modes....

 

Saw a similar thread in the GPU section but a year old with no conclusions there.

 

Any ideas would be appreciated.

 

Thanks!

 

Specs

CPU: Intel i5-6600 (stock speed, stock cooler)

MOBO: Asus Z170-K (BIOS 3805) (Latest as of 19 APR 2021)

RAM: 1x 8GB KLEVV CL19 

GPU: Sapphire Tri-X R9 290

Boot Drive: Samsung 960 500GB NVME M.2 SSD

PSU: Seasonic X-750W

OS: Windows 10 64bit. (Latest Ver as of 19 Apr 2021)

GPU DRIVER:AMD 20.50.03.01-210310a-365275C-RadeonSoftwareAdrenalin2020/ Software Ver Software Version
2021.0310.1434.26222 (Latest as of 19 Apr 2021)

 

Edited April 19, 2021 by fatalpee

[MrSimplicity]

Try using an HDMI cable and see if it continues. Also all "G-Sync" monitors are FreeSync compatible and vise versa G-Sync is just specifically built for Nvidia cards. You could also try going into your monitors setting and just turning off G-Sync to see if that helps. 

[fatalpee]

23 minutes ago, MrSimplicity said:

Try using an HDMI cable and see if it continues. Also all "G-Sync" monitors are FreeSync compatible and vise versa G-Sync is just specifically built for Nvidia cards. You could also try going into your monitors setting and just turning off G-Sync to see if that helps. 

switching to hdmi yields the same results. 
In the monitor's settings there's no particular setting referring to g sync that can be disabled. 

gsync are freesync compatible you're right but not sure why it works alright with my other NVIDIA gpu pc and not this one. 

 

thanks though!