When using a Win7 system computer, sometimes due to insufficient USB power supply, the computer pops up a surge prompt on the hub port. If you confirm that the USB hardware and USB driver on the computer motherboard are installed correctly, If so, you can solve this problem through the method introduced in this article.
1. Right-click the computer icon, select "Manage" from the pop-up shortcut menu, and then click "Device Manager";
2. After opening the Device Manager, Click on "Universal Serial Bus Controller";
3. Find the USB management controller of this computer. There are two. First, click on the first controller and select it from the pop-up shortcut menu. "Properties" button;
4. The property setting dialog box pops up, switch to the "Advanced" tab, check "Don't notify me of USB errors", and finally click the "OK" button to complete the settings; < /p>
5. Next click the second controller and select the "Properties" button from the pop-up shortcut menu;
6. The property settings dialog box pops up and switch to the "Advanced" option card, check "Don't notify me of USB errors", and finally click the "OK" button to complete the settings of all USB controllers.
Finally, I need to remind everyone again that when shielding the pop-up warning message, you must first find out whether it is caused by insufficient USB power supply. If so, you need to add an external power supply to solve this problem.
The English name of the hub is "Hub". "Hub" means "center". The main function of the hub is to regenerate, shape 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". Hubs, like network cards, network cables and other transmission media, are basic devices in the local area network and adopt CSMA/CD (Carrier Sense Multiple Access Technology with Conflict Detection) media 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.