By PURPLELEC | 01 September 2023 | 0 Comments
Causes and Solutions of Power Surges on Hub Ports
The main function of the hub is to regenerate, reshape and amplify the received signal to expand the transmission distance of the network, and at the same time concentrate all nodes on the node centered on it. It works on the first layer of the OSI (Open Systems Interconnection Reference Model) reference model, which is the "physical layer".
The hub is the same as the network card, network cable and other transmission media, and it belongs to the basic equipment in the local area network. It adopts the CSMA/CD (that is, the carrier sense multiple access technology with collision detection) medium access control mechanism. Each interface of the hub simply sends and receives bits. If it receives a 1, it will forward a 1. If it receives a 0, it will forward a 0. No collision detection is performed.
Causes of power surges on hub ports
1. Usually insufficient power supply has nothing to do with the box, but is caused by the weak power supply capability of the USB port of the motherboard.
2. The energy consumption of the hard disk is too high.
3. The circuit design of the hard disk box is unreasonable, or high-energy-consuming chips and other accessories are used - chip performance is often directly proportional to energy consumption. This can lead to less severe symptoms of insufficient power supply.
4. The USB cable of the hub is too long or too many USB devices are used at the same time. Because the USB cable plays the dual role of data transmission and power supply, if the connection is too long, it will lead to increased resistance and data interference, resulting in insufficient power supply.
How to solve the power surge on the hub port
1. The mainboard power supply is insufficient, there are too many USB devices or the power demand is too high, causing an alarm. Plug in fewer USB devices, especially USB hard disk boxes and USB speakers.
2. System and serial port driver problems, reinstall the USB driver.
3. For desktop computers, you can replace the host power box with a higher power one. The USB of the hub is connected to the main board, but the main board is powered by the main power supply of the host.
4. The simple solution is to stop this prompt from appearing, but it does not solve the fundamental problem. But it's better than the old pop-up box. The specific operations are as follows:
(1) Right-click the computer icon and select "Device Manager" from the pop-up shortcut menu.
(2) After opening the Device Manager, click on "Universal Serial Bus Controller".
(3) Find that there are two USB management controllers on this computer, first click on the first controller, and select the "Properties" button from the pop-up shortcut menu.
(4) The property setting dialog box pops up, switch to the "Advanced" tab, check "Do not notify me of USB errors", and finally click the "OK" button to complete the setting.
5、 USB-IF stipulates that the power provided by the USB port is 5V/500mA, but currently many peripherals require power exceeding this standard. Especially for devices such as external hard disk boxes or mobile hard disks, this situation can easily occur during use. Sometimes using a long USB cable or using multiple USB devices at the same time may also cause insufficient USB power supply.
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