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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.
If "Please turn off the power and connect the PCIe power cable" is displayed when starting the computer, please try the following solutions:
Let's look at this in detail.
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".
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.
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.
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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