My office recently replaced my work laptop with a newer model. Soon afterward, I began hearing an intermittent sound near my left ear that resembles air slowly escaping from a cushion. It happens roughly every 20 seconds to two minutes. I first blamed my old office chair, but the sound continued after the chair was replaced. It only occurs while I'm sitting at this particular desk, so it doesn't seem like tinnitus. I also suspected the fluorescent light overhead, but the sound seems much closer and comes from my left side. After moving things around and testing different positions, I found that changing the laptop's position makes the sound stop. That makes me suspect the laptop, its power cable, or the existing docking station. There are no earphones connected. Can laptops produce an intermittent noise like this, or should I keep looking for another source?
4 Answers
First, locate the laptop’s cooling vents and listen closely while the sound happens. A fan changing speed can make a brief whooshing or deflating noise, especially when the laptop is tilted or placed on a surface that partially blocks airflow.
Since you’re not using earphones, try disconnecting the laptop from wall power or the dock for a few minutes. A charger or dock can produce mechanical vibration or coil whine when its power load changes. If the noise disappears on battery power, the power adapter, dock, or charging circuitry becomes the likely source.
I’d report it to your IT department and let them test the laptop with a different dock and charger. That will quickly separate a fan or laptop problem from an issue with the desk setup. The fact that changing its position affects the sound is useful evidence, but it doesn’t prove the laptop itself is defective.
A faint electrical sizzling or chirping sound should not be ignored if it’s coming from inside the laptop. Faulty charging components or power circuitry can sometimes make noises that worsen under load and may eventually cause charging or hardware failure. Stop using it if you notice heat, smell, smoke, sparks, or a battery problem, and have workplace IT inspect or replace it. Back up important files and make sure you have the approved recovery information for any device encryption before the machine is serviced.
Changing the laptop’s position could also change how that vibration is transmitted through the desk, making a small electrical noise sound much louder from one angle.