Do you have a refurbished hard disk?

Hard disk includes SSD ***SSD, new hard disk * * *, mechanical hard disk ***HDD traditional hard disk * *, hybrid hard disk ***HHD, and new hard disk based o

Hard disk includes SSD ***SSD, new hard disk * * *, mechanical hard disk ***HDD traditional hard disk * *, hybrid hard disk ***HHD, and new hard disk based on traditional mechanical hard disk * * *. The following is what I brought, welcome to read!

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Yes, this is how I judge whether the hard disk is refurbished or not.

A method for identifying whether a hard disk is refurbished;

1. Log in to official website, the brand of the hard disk, and enter the serial number to query, and you can see the warranty information of the hard disk in detail. This method is the safest.

2, look at the appearance date, the date is engraved, refurbished hard disk merchants can not change the engraved date, can only cover it with electrostatic packaging.

3, look at the label, the bigger the label, the greater the suspicion, and the old label may be hidden under the big label.

4, the outer packaging is not exquisite, rough, and it is more likely to be refurbished.

5, check the gold finger, there will be scratches and used traces in the decoration.

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The reason why the mobile hard disk is not recognized.

First, the system or its own driver.

1. Press F8 to enter safe mode, and then exit. Select restart or shutdown to start, and then you can enter normal mode * * * to repair the login file * * *.

2. If the fault still exists, please use the system that comes with the system to recover until there is no such fault. * * * If normal mode recovery fails, please start the machine and press F8 to enter safe mode and use system recovery * * *.

3. If the fault still exists, use the system disk to repair it. Open the command prompt and enter a space between SFC/SCANNOW * * * SFC and/* *. Insert the original system disk to repair the system, and the system will automatically compare and repair it.

4. If the fault still exists, set the CD-ROM drive as the first boot device in the BIOS, insert it into the system installation disk, and press the R key to select "Repair Installation".

5. If the fault still exists, it is recommended to recharge the operating system.

Second, set CMOS parameters.

For friends who have never used a USB external device, even if the driver is installed correctly, the system may not be able to detect the USB hard disk. This is mainly because the default CMOS port of the motherboard is closed. If it is not set to the open state, Windows naturally cannot detect the mobile hard disk.

To solve this problem, we can restart, enter the CMOS setting window, and set the item "Assign IRQ to USB" to "Enable" in the column of "PNP/PCI configuration", so that the system can assign available interrupt addresses to USB ports.

Third, the power supply is insufficient.

Because USB hard disk also needs to consume a certain amount of electricity when it is working, if it is accessed directly through USB interface, it is likely that there will be insufficient power supply. It may be that there are too many peripherals connected to the USB interface, resulting in insufficient power supply. It is recommended to use a charged USBHUB or USB to PS/2 adapter. It is also possible that WindowsXP turns on the power saving mode by default, resulting in insufficient power supply to the USB interface and intermittent failure of the USB interface.

Right-click my computer/properties/hardware/device manager, double-click "universal serial bus controller" to go to several "USB root hubs", double-click any one to open the properties dialog box, switch to the "Power Management" tab, uncheck the check box before "Allow the computer to turn off this device to save power", click OK to return, and then modify the properties of each USB root hub in turn and restart the computer. USB devices can resume stable operation, and the frequency should be set as low as possible.