No display output despite the system powering on
An NVIDIA card that spins its fans and shows activity on the PCIe bus but produces no display output covers a wide range of possible faults. The failure may be in the display output circuitry, the VRAM, the firmware, or deeper on the board. On RTX 40-series cards, 12VHPWR connector damage can cause a partial power fault that looks identical to a board failure from the outside. Confirmation of what is actually responsible requires inspection and bench testing, not a parts-swap guess.




