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发表于 2024-10-12 09:10:33
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1. Power Consumption of USB Devices
Even when USB devices are idle, they still draw a small amount of power from the computer's USB ports. A large number of USB devices (in your case, 2 keyboards, 2 mice, and 6 USB MIDI devices) can collectively consume a non - negligible amount of power. This increased power draw might cause the computer's internal components, such as the CPU and other chips, to generate more heat than usual.
The Beelink SEi12's fan control system is designed to maintain a certain temperature range inside the computer case. If the temperature rises due to the power consumption of the USB devices, the fan may turn on or increase its speed to dissipate the heat, resulting in the fan noise you hear.
2. Device Enumeration and Background Processes
When USB devices are connected to the computer, the operating system periodically performs device enumeration and may run background processes related to these devices. For example, the computer checks the status of the USB devices to ensure they are still connected and functional.
These background processes can consume CPU resources, even if the devices are not actively in use. Higher CPU usage can lead to increased heat generation, which in turn can trigger the fan to operate and produce noise. In particular, some USB MIDI devices might have more complex software - associated background tasks that could contribute to the overall CPU load.
3. USB Controller Activity
The USB controller on the computer's motherboard is responsible for managing communication with all the USB - connected devices. High - traffic USB scenarios (such as having many devices connected) can cause the USB controller to work harder, generating heat.
The fan might respond to the heat generated by the USB controller to prevent it from overheating. This could be another source of the fan noise you are experiencing during idle periods.
4. Other Possible Causes
It's also possible that the fan noise is not directly related to the USB devices. There could be other factors such as dust accumulation inside the computer case, which can impede proper air - flow and cause the fan to work harder to maintain the correct temperature. Software - related issues, such as incorrect fan control settings in the BIOS or operating system, could also lead to the fan operating more frequently than necessary.
To determine whether the USB devices are the cause of the fan noise, you can try unplugging some of the USB devices one by one and observe if the fan noise pattern changes. If the noise decreases or stops after unplugging a particular device or a group of devices, it's a good indication that those devices are contributing to the problem. |
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发表于 2024-10-03 12:07:58
发表于 2024-10-04 16:00:50
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