they can also make that noise. Seemed loudest at the CPU on what you did record.
This is super annoying. I bought a gaming PC for my wife. It runs fine, but it makes the most annoying sound (cherping, ringing, whistling?) constantly. In the attached video, I move the camera around to various parts of the computer. Sounds like possibly the CPU or GPU?
FWIW, I have tried stopping the fans, and it does not sound like a bearing issue.
NVIDIA GeForce GTX 1060 3GB
8 GB DDR4 SDRAM
1 TB Magnetic HDD