System fails to start after GPU and CPU installation; waterproof cases are not helping.
System fails to start after GPU and CPU installation; waterproof cases are not helping.
Upgrading your PC case with custom water cooling and powering it on after reassembly is a solid step. I noticed the fan spins but no GPU display appears—possibly due to the CPU variant or GPU configuration. The long power button press needed to shut it down suggests a potential issue with the power circuitry. Trying different RAM configurations and reseating the GPU helps narrow things down. To determine if the problem lies with the CPU, GPU, or both, check for proper fan operation, monitor responsiveness, and test with known working components.
What are your PC specifications? Are there any debug LEDs on the motherboard that might indicate a problem? This could help pinpoint where it's getting stuck.
This setup includes an Asus Z690P with 12.7 GHz turbo, reference model 3080, 32 GB Corsair Vengeance DDR5 RAM, and M.2 SSD. There are no debug LEDs, and the speaker appears to be functional.
I believe the issue lies here. I recall some extra components left over after installation—specifically, a water block. When you started using it, something failed. I’d take it apart, reinstall the water block or restore the original cooler, and try again. Double-check for any missing small washers or parts that might have caused a ground issue. The original cooler must be reinstalled for a return merchandise authorization. Also, ensure all power connections are completely secured.