PC doesn’t boot and has no response after BIOS change

So, you've recently made changes to your computer's BIOS settings and now your PC won't boot up and seems to have no response. Don't panic! This can be a common issue that can be easily resolved with a few troubleshooting steps. In this article, we will guide you through the process of troubleshooting and fixing your PC when it doesn't boot after a BIOS change.

1. Check for Power Issues

The first thing to do is to ensure that your computer is receiving power properly. Check if the power cable is securely plugged into both your computer and the power outlet. If you're using a power strip, make sure it's turned on and functioning correctly. Additionally, verify that the power supply switch on the back of your computer is in the "on" position.

2. Reset the BIOS Settings

If your PC still doesn't respond after checking the power, it's time to reset the BIOS settings to their default values. This can be done by clearing the CMOS (Complementary Metal-Oxide-Semiconductor) settings. To do this, follow these steps:

1. Shut down your computer completely.
2. Locate the CMOS battery on your motherboard. It is a small, circular battery usually placed near the center.
3. Remove the CMOS battery from its slot. You may need to use a small flathead screwdriver or a similar tool to carefully pry it out.
4. Wait for a few minutes and then reinsert the CMOS battery back into its slot.

After performing these steps, power on your computer and check if it boots up successfully. Resetting the BIOS settings should resolve any issues caused by incorrect configurations.

3. Disconnect External Devices

If your PC still fails to boot after resetting the BIOS settings, it's possible that an external device is causing the problem. Disconnect all external devices such as USB drives, printers, scanners, and external hard drives. Sometimes, incompatible or malfunctioning devices can prevent your computer from booting properly.

After disconnecting the external devices, try booting up your computer again. If it boots successfully, you can then reconnect the devices one by one to identify the problematic one.

4. Check Hardware Connections

Loose or faulty hardware connections can also lead to booting issues. Open up your computer's case and ensure that all the internal hardware components are properly connected.

Start by checking the cables connecting your hard drive, motherboard, and power supply. Ensure that they are securely plugged in and not damaged. Reseat the cables if necessary.

Next, check the RAM modules. Remove them one by one and then reinsert them firmly into their slots. Faulty RAM can cause booting problems, so make sure they are seated correctly.

Finally, check the graphics card, if applicable. Ensure that it is properly seated in its slot and the power cables are connected securely.

5. Perform a BIOS Recovery

If none of the above steps have resolved the issue, you may need to perform a BIOS recovery. This process will restore the BIOS to its original state.

First, visit the manufacturer's website and download the latest BIOS version for your specific motherboard model. Save it to a USB flash drive.

Insert the USB flash drive into a USB port on your computer and power it on. Most motherboards have a dedicated USB port for BIOS recovery. Consult your motherboard's manual to locate the correct port.

Refer to your motherboard's manual for the exact steps to perform a BIOS recovery. Typically, it involves pressing a specific key or combination of keys during the boot process to initiate the recovery mode. Follow the on-screen instructions to complete the recovery process.

If your PC doesn't boot and has no response after a BIOS change, it can be a frustrating experience. However, by following the troubleshooting steps outlined in this article, you should be able to resolve the issue and get your computer up and running again. Remember to always double-check your BIOS settings before making any changes to prevent similar problems in the future.