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Troubleshooting PC Not Posting – 6 Ways to Fix

Having trouble with your PC not posting? Here are six ways to fix the issue.

Initial Troubleshooting Steps

If that doesn’t work, remove any unnecessary peripherals like external hard drives or USB devices, as they could be causing a conflict. It’s also a good idea to reset the CMOS by either using the jumper on the motherboard or removing the battery for a few minutes.

If the problem persists, try booting with only one stick of RAM to see if one of them is faulty. And finally, if none of these steps work, it may be time to consult online forums like Reddit for further assistance from the community.

Checking the Power Supply

  • Ensure the power cord is securely plugged into the wall outlet and the power supply unit.
  • Check for any visible damage or fraying on the power cord.
  • Test the wall outlet with another electronic device to ensure it is working.
  • Use a multimeter to check the voltage output of the power supply unit.

Memory and Graphics Card Checks

To troubleshoot a PC that is not posting, it is important to check the memory and graphics card. Start by reseating the memory modules to ensure they are properly connected to the motherboard. If reseating does not work, try using a different memory slot or testing the modules in another computer to see if they are the issue.

Next, check the graphics card by reseating it and ensuring it is securely in place. Make sure all power connectors are properly connected and try using a different PCIe slot if available. If the issue persists, test the graphics card in another computer to determine if it is the cause of the problem.

BIOS Configuration and Updates

To troubleshoot a PC that is not posting, one important step is to check the BIOS configuration and update it if necessary. Access the BIOS by pressing the designated key during startup (often Del or F2). Once in the BIOS, check for any settings that may be causing the issue, such as incorrect boot order or disabled hardware components.

If the BIOS is outdated, download the latest version from the manufacturer’s website and follow their instructions for updating. This can often resolve compatibility issues and improve system performance. Remember to always back up your current BIOS settings before making any changes.

After updating the BIOS, restart the PC and check if it is now posting properly. If not, you may need to further troubleshoot the hardware or seek professional help.


Why is my PC on but not posting?

Your PC is on but not posting because the BIOS may need to be updated to ensure compatibility with the CPU and motherboard. Disconnecting peripherals and expansion cards can also help troubleshoot the issue.

Why does my PC turn on but no display?

My PC turns on but there is no display. This issue is often caused by loose or faulty cables, or by using the incorrect source input on the display.

Why is my new PC build not posting?

Your new PC build may not be posting because there could be issues with the motherboard power cable, CPU power cable, or RAM installation. Make sure all cables are properly plugged in and that the RAM is seated correctly. Refer to your motherboard user manual for proper installation guidelines.

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