So i have a gt 1030 and an i3 2100,it's been almost 1 year since i got my pc it was running normally till i got a new windows cause my old windows died and all my data got erased and now when i play a high graphics game it runs well for 10-15 mins the screen starts blinking (every blink takes like 1-2 secs) and the gpu temperature is 50° to 65° so its normal and the cpu temperature is also normal. So could anybody help?