Hello, When I play games as Need for Speed Payback, Ruiner, Mirror Edge 2.... my computer freeze and I have to hard reset. Lately I can reset pc with reset button, but some time before that I had to turn it off with power button because even reset button was not responding. I tried to think out of the box and I borrowed UPS, because I have some electricity surges in area where I live so I figured power surges could influence GPU; I even have protection for surges. I read numerous topics with similar issue, but I just can figure out what is wrong with my system. I'm really desperate and pissed about this issue. If GPUs wouldn't be so expensive atm I would just bought new Nvidia GPU. I had never issues with those. It looks that undervolting GPU helps just a bit so I'm pretty sure It's power consumption issue. Sometimes I can play for hours, but then again sometimes freeze happen just after few minutes gameplay. I used HW Monitor and HWiNFO64 to log info, but I can't really see anything wrong with temperatures of CPU or GPU. Voltage on GPU looks stable too, but I'm not expert so I could be wrong. All drivers are updated to latest, have latest bios on GPU and mobo, just clean installed win10. Everting runs on stock settings. I did tinker a bit, mostly to try to figure out I changing any OC or UC setting would help. My specs: ASUS MB STRIX Z370-H GAMING, LGA 1151, DDR4, ATX CPU Intel 1151 Core i7 8700K 4.2GHz Box 95W - Coffe Lake Cooler Intel/AMD SCYTHE Mugen 5 Rev.B SCMG-5100 GPU GIGABYTE RX480 (GV-RX480WF2-8GD) DDR4-16GB 3000MHz CL16 KIT (2x 8GB) G.Skill 16GB Aegis (F4-3000C16D-16GISB) PSU Gigabyte B700H 700W Monitor AOC Q3279VWF connected via DP WIN 10 EDU Before that RX480 was used with overclocked Intel Quad Q9650 with DDR2 8GB and I could run almost anything on high setting on 22" 1080 monitor. I made assumption about issues. It's proly driver or bios issue or maybe some compatibility issue, but so far I found bo useful info on this issue. Any help would be greatly appreciated.