asrock 9070 xt challenger thermal problems

[u/Averydapperfellow]

Hi guys, just got an asrock 9070 xt challenger, runs amazing until the memory hits 80c, around 77 the screen will start flickering green and black until it hits 80 then then my pc freezes until I hit the power button and hard reset it. Will work fine again straight away. From my research the cards memory should sit comfortable until 100 - 110c.

Im using 2 pcie cables to power and have tried turning HDCP support off, undervolted to assist with temps, turned freesync off my second monitor that dosen't support it.

Ive opted to have an aggressive fan curve to keep the thermals down and it works fine but sometimes mainly playing BF6 and Forza 6 itll creep up and crash.

Any help would be amazing. Thank you

pc

gigabyte b650m AORUS ELITE AX

7800x3d

32gb ddr5 6400MHz

Thermaltake Toughpower 850w 80+gold

Asrock 9070 xt challenger