The PSU fan continues to run even after the system has been turned off.
The PSU fan continues to run even after the system has been turned off.
Hi, your new PC has a Chieftec Photon GDP-750C RGB 750W PSU. When you power off the machine, the PSU fan continues to spin and doesn’t stop. Someone suggested using the RGB button on the PSU to turn it off, but that didn’t work. The PSU’s RGB is connected to the motherboard, so you can’t adjust it via that button. Let me know if you need further assistance!
If this occurs, the system isn't powered down—it's just resting. Press the power button for four seconds and verify it's truly off. If the cooling fans remain active afterward, consider these possibilities: - The power supply unit uses a hybrid noise setting that keeps spinning the fans even when idle, meaning the PC might still be active. - The motherboard includes a dehumidifier feature that puts the system into sleep mode with fans running to prevent moisture buildup, though it should eventually shut down. This supports the idea that the computer isn't completely off if fans are still on.
I also own a chieftec psu, the polaris 1050W, and I’m facing the same issue. No one on the web explains it or confirms if it’s typical. I contacted their support, but they didn’t offer any clear reasoning. They only provided fan curves and mentioned something unusual: the PSU stops spinning when the system is turned on with less than 20% load. When I power it off, the fan begins to spin, which is noticeable. My suspicion is these units might be defective, though their manual states something important that makes me doubt: "it must be connected to a 'Load' (like an HDD) before the switching power supply can activate (the fan starts rotating) and DC power output will be active."