Please turn off the power and connect the PCIe power cable

If you see the error message please power off and connect the PCIe power cable on your Windows 11/10 PC, please read this post to learn how to resolve the issue.

This error can be triggered when a PCIe device (usually a graphics card) fails to receive enough power. Possible causes include a faulty PCIe power cable, connection issues, or insufficient power. This problem can also occur if the power cord is not connected correctly.

Please turn off the power and connect the PCIE power cable (S) of this graphics card

First-time PC users or people who lack experience in assembling computer systems often encounter this problem. This error message may also occur if the PCIe cable becomes loose due to vibration or time. This article describes the steps you need to take to resolve this issue.

Please turn off the power and connect the PCIe power cable

If "Please turn off the power and connect the PCIe power cable" is displayed when starting the computer, please try the following solutions:

Check power connection

Check your GPU power input

Check the power supply

Re-pull the graphics card

Let's look at this in detail.

1]Check power connection

The first thing you need to check is your power connection to fix the error message "Please power off and connect the PCIe power cable".

• Make sure you are using the PCIe cable connector, not the CPU connector (the CPU connector looks just like the PCIe connector, it may actually connect to some video/graphics cards, but will not provide power)
• Make sure the PCIe cable is securely plugged into the corresponding socket on the graphics card. Most modern GPUs usually have one or more PCIe power connectors, usually 6-pin, 8-pin, or even 16-pin. Pay attention to the type of connector and how it plugs into the graphics card. If you plug the connector in incorrectly, it won't make contact with the card when you power it on.
• Make sure all connectors are not damaged. If you're reusing power from another computer, make sure the connectors won't corrode over time. This can lead to poor electrical connections or even equipment failure. Additionally, check the PCIe slots on the motherboard for signs of damage.

2] Check your GPU power input

High-performance graphics cards often require additional power that PCIe slots cannot provide. Make sure your GPU has enough power to run on its own (GPUs vary greatly in power, from about 75 watts to 1000 watts for high-end models).

To check your GPU's power requirements, refer to the specifications provided by the GPU manufacturer (check the manufacturer's website/product documentation/product packaging). It is usually expressed in terms of the recommended wattage of the power supply unit (PSU) and the number and type of PCIe power connectors required.

3]Check the power supply unit

Make sure your power supply unit (PSU) specifications are compatible with your GPU's power requirements. It is generally recommended that your PSU have some extra headroom (around 100-150W) on top of the power requirements of the GPU and CPU to accommodate other system components and ensure a stable power supply in the event of a power surge.

If your PSU is not working properly or does not provide enough wattage to support all the components in your system, you may encounter the above error message. Test the PSU using a power tester to check for any faults. If your current PSU is malfunctioning or unable to handle the load, you may need to upgrade it to fix the problem.

4]Re-plug the graphic card

An incorrectly set up GPU is another possible cause of the error. Turn off the computer, unplug it, open the case, and carefully remove the graphics card. Then, clean the PCIe lanes, reinsert the card into the PCIe slot, and reconnect the power cable. It may now be getting enough power to run without problems.

If none of the above solutions work, consult a qualified technician and seek professional help.

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