Question about ASUS NEZ ROG Loki SFX-L Platinum power supply unit

It is normal that the fan of a power supply does not start immediately when the PC is started. Many modern power supplies, including the ASUS ROG Loki SFX-L Platinum, are designed so that the fan only starts to rotate at a certain load or temperature. This often happens at around 40% of the rated power or when a certain temperature is reached. If the fan does not start when starting up, this could indicate that the power supply unit is being operated in idle mode or under low load.