I'm having trouble with my PC. I recently replaced my old power supply unit (PSU) because it was causing crashes, but after the replacement, my computer won't turn on at all. The GPU light is on, but the motherboard, RGB, and CPU fan aren't responding. I suspect the CPU might not be initialized either since my monitor isn't displaying anything. Just to give you context, this was a prebuilt system from Lyte, and I upgraded it with an RTX 2060. The PSU I installed is a Thermaltake Toughpower 600 Watt Gold. Any insights on what might be going wrong?
2 Answers
Have you tried resetting the CMOS? It can make a difference! Also, take a look at your motherboard for any boot indicator lights. There should be four LEDs on your motherboard that light up during the boot process for CPU, RAM, and so on. If any of those lights stay on, it could give you a clue about what's causing the issue.
Sounds like you're in a bit of a pickle! If the GPU light is on but nothing else is working, check the power cables first. Double-check that the 24-pin motherboard cable and the CPU power cable are securely connected—these can often be overlooked during a PSU swap. Also, use only the cables that came with your new power supply. You might want to try clearing the CMOS battery by unplugging your PC and removing the battery for a few minutes. After that, try booting with the essentials: just your CPU, one RAM stick, and the GPU. Also, confirm that the front panel power button wiring is correct. If none of this works, your new PSU might have issues too.
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