My computer suddenly stopped turning on this morning and now it’s making a weird buzzing noise without being fully on (Acer Nitro 50 650)

Troubleshooting Sudden Power Issues on Your Acer Nitro 50 650 Gaming Desktop

Experiencing unexpected power problems with your computer can be both frustrating and concerning, especially when your device has been reliable up to this point. If your Acer Nitro 50 650 suddenly refuses to turn on and is emitting a persistent buzzing noise from the power supply unit (PSU), understanding potential causes and appropriate solutions is essential.

Overview of the Issue

You’ve described a scenario where your desktop, which operated flawlessly for over two years, fails to start after a routine shutdown. The power button remains lit as if in standby mode, yet pressing it does not initiate booting, and internal lighting remains off. Additionally, a low, constant buzzing noise emanates from the PSU, continuing even when the system is turned off or unplugged.

Initial Troubleshooting Steps

1. Power Cycle and Basic Checks
2. You’ve already unplugged the computer for safety, which is a good first step.

3. Attempted powering on with different electrical outlets to rule out socket issues.

4. Inspecting the Power Supply
   The continuous buzzing suggests a problem with the PSU—a critical component responsible for supplying power to all parts of your desktop.

Understanding the PSU Concerns

A PSU emitting a persistent buzzing sound can be indicative of several issues:

• Electro-mechanical fault within the PSU, such as failing capacitors or transformer issues.
• Voltage regulation problems that can result in abnormal noise.
• Physical damage or aging components that have deteriorated over time.

Given the PSU’s central role and safety considerations, a failing power supply can also pose fire hazards.

Recommended Next Steps

1. Do Not Attempt to Repair the PSU Yourself
   Power supplies contain components that can retain residual voltage and pose electrocution risks. Unless you are qualified, it’s safest to leave repairs to professionals.

2. Test with a Known Working Power Supply

3. If you have access to a compatible, tested replacement PSU, replacing your current unit can quickly determine if the PSU is at fault.

4. Alternatively, a professional technician can run diagnostic tests to confirm.

5. Seek Professional Assistance

6. Contact a certified computer repair service or technician. They can diagnose whether the PSU has failed or if the issue lies elsewhere, such as motherboard or internal connections.

7. Consider Your Repair Options

8. If the PSU is confirmed faulty