![CPU Fan over 4000 RPM when simply browsing a website, and much more when gaming. | Tom's Hardware Forum CPU Fan over 4000 RPM when simply browsing a website, and much more when gaming. | Tom's Hardware Forum](https://forums.tomshardware.com/proxy.php?image=http%3A%2F%2Fi.imgur.com%2FA4DG7tU.png&hash=bddb460a2f2b834a13d3ecc709281a1c)
CPU Fan over 4000 RPM when simply browsing a website, and much more when gaming. | Tom's Hardware Forum
![The constant jumping of RPM when using default CPU fan settings really bothered me, so I came up with this custom one. Is it good/safe (Ryzen 5 3400G with stock cooler) : The constant jumping of RPM when using default CPU fan settings really bothered me, so I came up with this custom one. Is it good/safe (Ryzen 5 3400G with stock cooler) :](https://i.redd.it/b0j6527ji3961.png)
The constant jumping of RPM when using default CPU fan settings really bothered me, so I came up with this custom one. Is it good/safe (Ryzen 5 3400G with stock cooler) :
![Amazon.com: AAAwave 120mm 2500 RPM PWM Daisy Chain Double Ball Bearing Powerful Cooling Fan for GPU Mining Rig, CPU Cooler, Water-Cooling Radiator, Server and Case (1-Pack) : Electronics Amazon.com: AAAwave 120mm 2500 RPM PWM Daisy Chain Double Ball Bearing Powerful Cooling Fan for GPU Mining Rig, CPU Cooler, Water-Cooling Radiator, Server and Case (1-Pack) : Electronics](https://m.media-amazon.com/images/I/61j34rald4L._AC_UF1000,1000_QL80_.jpg)