be quiet! Dark Power Pro 11 650W Data Sheet

First, ensure the power supply is switched off and unplugged. Align the power supply screw holes with those on the back of your PC case and secure it using the provided screws. Connect the necessary cables to your motherboard, GPU, storage drives, and other components, making sure all connections are firm.
Check if the power cable is securely connected to both the power supply and the wall outlet. Ensure the power switch on the rear of the power supply is in the 'on' position. Verify all internal power connections are secure. If the issue persists, test the power supply with a different power cable or in a different system to determine if it is faulty.
Ensure the power supply is mounted securely to prevent vibrations. Use the supplied rubber grommets to reduce noise further. You can also enable the fanless mode if your system's power demands allow it, which keeps the fan off under low load conditions.
Regularly clean the power supply's fan and vents using compressed air to prevent dust build-up. Ensure that cables are organized to allow proper airflow. Periodically check all connections to ensure they remain secure.
It is recommended to use only the modular cables supplied with the power supply to avoid compatibility issues. Using cables from different models or brands can cause damage due to differing pin configurations.
Perform a paperclip test by shorting the green wire and any black wire on the 24-pin motherboard connector to see if the power supply turns on. However, this only confirms basic functionality; for a comprehensive test, use a dedicated power supply tester or multimeter to check voltage outputs.
The power supply can support multi-GPU setups, depending on the total power requirements of the GPUs. Ensure the combined power draw does not exceed 650W and that you connect all necessary PCIe power connectors.
The power supply includes multiple safety features such as over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), short circuit protection (SCP), and over-temperature protection (OTP) to safeguard your components.
The power supply automatically enters fanless mode under low load conditions to minimize noise. No manual intervention is necessary. Ensure your system's power consumption and ambient temperature allow for fanless operation.
Check for loose connections and ensure that all cables are securely attached. Verify that your electrical outlet is functioning properly and that the power supply is not overloaded. Consider using a UPS (Uninterruptible Power Supply) to protect against power fluctuations.