What if USB is not recognized?

USB is not recognized, do not recognize the USB device? USB devices to store and transfer data we have brought a great de convenience, the office staff are basically a U disk, now we are around more and more deusb equipment, and there are more and more problems, the software hardware, the problem of de is followed by , let's analyze the USB device and troubleshoot the problem.

In this case, it is generally due to power supply problems. Because the USB hard drive in the work de time to consume a certain de electricity, directly through the USB interface to get electricity, there may be a lack of power supply. As a result, almost all de mobile drives come with a separate de external power supply or a DEPS2-turn interface via the keyboard, at this time as long as the prior connection to the external power supply or through the PS2 to connect with the keyboard, to ensure that the mobile hard drive to provide enough de power and then try again, this should be normal use of it. It is important to draw attention to the de system, and it is recommended that you make sure that you have enough de power before using a removable hard drive, or you may be damaged by a lack of power.

For a friend who has never used a USB add-in, even if the driver is properly installed, it is possible that the system cannot detect the USB hard drive de condition, which is mainly due to the motherboard default Decmos port system shutdown de, and if it is not set to open, then Windows naturally cannot detect Move the hard drive. To solve this problem, we can reboot, enter the CMOS Setup window, and in the "PNP/PCI Configuration" column, "Assign IRQ for USB" is set to "enable", so the system You can assign an available de interrupt address to the USB port.

It is also possible that the USB interface type does not match the removable hard drive. Some computers configure the Deusb Interface System 1.1 standard de, purchase de mobile hard drive System USB 2.0 standard de interface, which requires that the connecting computer and the mobile hard drive de connector must support USB 2.0 standard. Because the high-speed mobile device * * * Low speed Hub, the device may not be installed normally, and some friends in the use of mobile hard disk de also use USB drive, in order to facilitate the direct use of USB disk with the DEUSB 1.1 standard connector, which led to the USB 2.0 standard DEUSB unrecognized. This fault can be resolved simply by replacing the connector with USB 2.0 standard de.