Why won't my PC turn on but has power?
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A seemingly powered-down PC might suffer from a loose power connection, either at the wall or the machine itself. Alternatively, a faulty power supply unit could be the culprit, preventing the system from booting. Even a persistent malware infection can sometimes block startup.
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Why Won’t My PC Turn On Despite Having Power?
When your PC fails to start despite having power, it can be a puzzling and frustrating situation. Here are some common reasons why this issue may occur:
1. Loose Power Connections:
- Inspect the power cord for any loose connections at the wall socket or the back of your PC.
- Ensure that the power cord is securely plugged into both outlets and that the power switch on the back of the PC is turned on.
2. Faulty Power Supply Unit (PSU):
- The PSU converts AC power from the wall to DC power used by the PC components. A faulty PSU can prevent the system from booting.
- If you have a spare PSU, try replacing it to see if the issue resolves.
- Contact a qualified technician if you suspect a PSU issue, as it can be dangerous to handle.
3. Malware Infection:
- Persistent malware can interfere with the boot process, preventing the system from starting up.
- Run a thorough antivirus scan to detect and remove any malicious software.
- If malware is suspected, consider using a bootable antivirus tool to scan and clean the system before booting into Windows.
4. BIOS or Hardware Failure:
- In rare cases, a corrupted BIOS (Basic Input/Output System) or hardware failure can prevent the PC from turning on.
- Try resetting the CMOS (Complementary Metal-Oxide-Semiconductor) by removing the CMOS battery for a few minutes and then reinserting it.
- If the issue persists, it may indicate a hardware failure, such as a faulty motherboard or CPU. In this case, consult a qualified technician for diagnosis and repair.
Troubleshooting Steps:
To troubleshoot this issue effectively:
- Check the power connections and PSU as described above.
- Run an antivirus scan to eliminate malware infections.
- Reset the CMOS to rule out BIOS issues.
- If these steps do not resolve the problem, consider seeking professional assistance from a qualified technician to diagnose and repair the hardware.
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