I own a 2-year-old computer sporting and Intel Core i3-4350 processor, 8GB of RAM, an NVIDIA GeForce GTX 750 Ti graphics card with 2GB of memory, and a 430W power supply. Recently, I bought a monitor with 144hz refresh rate, and started playing games at 144 FPS. The problem is that when I play games, the computer shows red artifacts on the screen, then restarts on its own. According to related posts on the internet, the issue seems to be a problem with either the graphics card, motherboard or power supply. However, the only suggestion they provided was to buy new components, which I do not have the budget for. So, I started playing games at 60 FPS again, and after this, my computer no longer crashed. Even so, I fell in love with the smoothness of playing games at 144 FPS, and I hope to be able to play games again at 144 FPS without the computer crashing. Any suggestions?