System powers up yet fails to show any output or respond to the keyboard.
System powers up yet fails to show any output or respond to the keyboard.
I'm facing some issues with my computer lately. It began about a week ago while playing games, then suddenly I see a solid brown screen and had to restart. The colors changed—sometimes blue, sometimes red. One day the screen went black completely, so I restarted again but the PC didn’t show any display at all, and the CPU fan was spinning at maximum speed. After cleaning the RAM slots and reseating the RAM, it worked. A few days later the same happened, and even after cleaning the RAM and re-seating it, the fan kept spinning fast. I tried different fixes like using another RAM stick, swapping the CMOS battery, but nothing helped. Now, when I turn on the PC again, the problem returns, though the fan speed has returned to normal after a couple restarts. I’m really confused and would really appreciate any help you can give me. Please note that my English isn’t perfect—it’s not my first language.