coil whine

I'm curious about how common coil-whine is in laptops and what causes it. My Macbook Pro M2 Max produces a significant coil-whine noise, especially when the GPU is in use. I've noticed that deleting/stopping the use of AlDente has decreased the level of noise, but it is still present. It appears...

Hello, Yesterday we just bought an M1 iMac from a nearby Apple Store for my wife. I didn't have time to use it then but today when I turned it on, I've started hearing this high pitched sound. It's low in volume but constant and I don't need to come close to hear this. I'm able to pick this...

hi, I recently swapped out my (2TB) dual fusion drive setup on my 2017 iMac 27", to a singular 2TB Samsung 970 Evo Plus NVMe with the Sintech adapter. Alongside the SSD swap, I also installed 32GB of Crucial memory, coming from the stock 8GB apple memory. Before I sealed the screen back up, I...

Hi everyone, Picked up a new 2019 16” MBP base model w/ 512GB storage. Installed windows using bootcamp and then noticed an intermittent electronic scratching sound. With no apps running, I opened up the task manager and monitored CPU speed and saw that every couple of minutes the cpu speed...

I got my Magic Keyboard for the 12.9 inch iPad Pro today. When charging with cable plugged in the Magic Keyboard it does make a sound similar to coil whine. I checked this with an Apple 18W and 30W Charger with original cables both 1 and 2 meters. It makes the sound when the iPad is attached and...

Just got the stock 2.6GHz model and noticed coil whine while the system is booting, and when clicking buttons in System Preferences. This is after the Catalina 10.15.1 Supplemental Update was applied which specifically addresses issues with this model. I don't have time at the moment to...

Hello everyone, I'm new to this forum. I just unboxed my new Macbook Pro 2019 15" i9 2.3Ghz, 560X, 16GB ram, 512GB SSD. As soon as the device accessed the disc I noticed the coil whine. It mostly sounds like scratching and high pitched whining. I've searched through this forum and found a...

It is not noticeable during regular use, but if I place my ear close to the keyboard or speakers of my MacBook Pro in a quiet room, I can hear some sort of electrical current sounding noise. Does anyone with the 15 or 13 inch tbMBP notice this? Any older models have this sound? I know that this...