I'm experiencing a strange arcing sound from my Dell Inspiron 14 5425 laptop, even though it has no mechanical parts. I'm not sure where the sound is coming from, and I can't spot any arcing even when the lights are off. I replaced the motherboard last time because the original one fried during gaming, and I haven't gamed since. Additionally, I had a broken touchscreen before replacing the motherboard, and now the touchpad is acting up, showing "unresponsiveness" according to the terminal. Could these issues be connected? I'm hesitant to use the laptop until I know more. Should I consider taking it to a professional? Here's a (https://youtube.com/shorts/yk6uk8d6VgA?si=43jC_NUlk_elDHkZ) I recorded.
2 Answers
I think it's pretty unlikely that it's the fan if it's not spinning at the time of the noise. It could be related to your motherboard replacement or even just some loose wiring. If the noise persists and you're not sure what's causing it, definitely consult with a professional to avoid further damage. Your laptop deserves some TLC!
It sounds like you might be dealing with coil whine, which is a pretty common issue in laptops. It often happens when electrical components vibrate, especially under load. Since you mentioned you replaced the motherboard, make sure everything is properly connected. It’s also worth checking if there’s any dust buildup that could be causing issues, even though it seems unlikely since you have no moving parts. Just in case, avoid using it until you have it checked out, especially since you've noticed other problems with the touchpad.
Yeah, coil whine is often mistaken for something more serious. But if it's definitely not mechanical, it might be worth running a diagnostic to ensure everything's functioning as it should. Better safe than sorry!

Good point! It sounds like it might be linked to the recent repairs. A pro will have the tools to pinpoint the exact issue.