So as the title says, customer came with Galax RTX 4080 SG. Beautiful GPU in perfect condition. Less than 3 months of use, nothing of dust or oil from thermal pads. The problem appears when i quit heavy games or alt/tab them. For example when playing Alan Wake 2 the GPU performs perfectly with no artifacts or stuttering. But whenever i alt tab to desktop or exit the game, the screen flickers or goes to black for 2 seconds. Also when i alt/tab the game sometimes crashes with a message sying there is no vga device. I already replaced uP9529Q controller, uP9512R controller and us5650q prefilter. All voltages seem normal. 1.365 for vram, 1.075 for vcore and 11.8v for 16pin (12.12v in idle). I tried mats/mods 520.xxx but no error so far. What else should i try? Thanks
i attach pictures from techpowerup https://www.techpowerup.com/review/gala ... -sg/4.html