are not recognized can also be repaired, but it is difficult to partition when the 0 channels are bad.This is misleading. For example, if you have not collected and studied foreign-language materials for a long time, you cannot say that you have used them as your creed for a long time. There are many professional hard drive repair forums in foreign countries, where you can find that
Introduction to Interfaces
IDE interface
(Integrated-drive-electronics) is now commonly used external interface, mainly connected to the hard disk and optical drive. Using 16-bit data parallel transmission mode, small size, fast data transmission. An IDE interface can only receive two
at the interface, to see whether the data line interface is blue, if it is blue for the USB3.0 interface.
3, look at the pins, under normal circumstances USB2.0 is a row of 4 pins, USB3.0 is the front 5 pins, 4 pins in the back row.
4, see Speed, General USB2.0 of the actual transmission speed of mb-40mb/s, and USB3.0 transmission speed can reach 60mb-140mb/s, you need to pay attention to the premise of your computer motherboard support USB3.0.
Third, data transmission rate (data Transfer Ra
===========================2. before using the optical drive (1), mount: # mount/dev/cdrom/mnt/cdrom, then you can read the content of the CD in the/mnt/cdrom directory. (2) when you want to exit the CD, you must use the umout command, otherwise, the optical drive remains deadlocked: # umount/mnt/cdrom. Tip: mount: block device/dev/cdrom is write-protected, mounting read-only indicates that the optical
computer does not recognize the mobile hard drive what to do
Under normal circumstances, a removable hard disk is connected to a host and the system can recognize it as a removable storage device and automatically add a letter to my computer. If the system will recognize the mobile hard
corresponding drive letter flag in the explorer, this is caused by improper system setup.
Second, the motherboard USB interface problem
Due to a problem with the USB interface of the motherboard, the mobile hard drive does not work, mainly from the following aspects to solve:
1, USB interface is not open: on some old machines (including some brands) althoug
What are the computer hardware maintenance skills? In short, the function of computer hardware is to input and store programs and data, and to process data into available forms. From the outward appearance, the microcomputer is composed of the host box and the external equipment. The devices in the host enclosure are connected to the host through an interface and a connecting line. Then, the computer hard
function? Why read multiple times, can read different information. -This is because the device register itself is the interface of the FIFO queue and is a non-prefetch type.Where the INSW instruction is used as follows:INS M8, DXInput bytes into ES: (E) DI specified memory location from DX specified I/O portINS M16, DXInput the word into ES: (E) DI specified memory location from DX specified I/O portINS M32, DXDouble-word input ES: (E) DI specified memory location from DX specified I/O portINSB
and Ultra320 SCSI all represent a specific hard disk interface, and their speed varies considerably.
HDD Interface Classification
Ide
IDE's English is all called "Integrated Drive Electronics", namely "Electronic Integrated Drive", the common 2.5-inch IDE hard disk interface It is meant to refer to "
would invest $4.3 billion in cash plus stock to acquire a Hitachi wholly owned subsidiary, Hitachi Global Storage Technology (HGST), a world-class hard drive manufacturer.
Hard Disk Interface
Ata
Full name Advanced Technology attachment, is the traditional 40-pin with the port data cable to connect the motherboard and har
There are two fault prompts for Hard Disk Self-check by microcomputer: "HDD Not Detected (Hard Disk Not Detected)" and "HDD Control Error (Hard Disk Control Error) ". The following describes how to fix the vulnerability.
First, wash your hands with water to clean the oil and sweat on your hands. At the same time, remove potential static electricity from your bod
directly to the factory settings, not yet, check your motherboard.
The computer's USB interface itself is not a high-speed interface, while the mobile hard disk is a high-speed hard drive, so even if the power is normal can not show the mobile hard disk area, the computer's USB interface, the general computer will ha
:
1. The CMOS parameters are not set to open for a friend who has never used a USB add-in, it is possible that the system cannot detect a USB hard drive even if the driver is properly installed, mainly because the default CMOS port on the motherboard is turned off.
If it is not set to open, Windows naturally cannot detect the removable hard
As a storage device of the hard disk, the probability of failure is not large, the normal use of the hard disk, if not affected by external forces, generally will not be a problem, and we saw some such as hard disk circuit board burned hardware failure, but also because of the user's very operation caused. But in the m
The computer does not show how to move the hard drive:
Under normal circumstances, a removable hard disk is connected to a host and the system can recognize it as a removable storage device and automatically add a letter to my computer. If the system will recognize the mobile hard
when a second hard drive is damaged in raid. This is the system crashes, data loss, the site can not be accessed.
Dedicated servers with a hard disk rack, the server can be hot-swappable SCSI hard drives without shutting down the computer, or you can replace the hard
check this option. You can see the new mobile hard drive letter in the resource manager.
Method Two: The USB interface problem of the motherboard
Because of the motherboard's USB interface problem caused the mobile hard disk can not be used normally, mainly from the following aspects to solve:
1.USB Interface not open: on some old machines (includ
computer does not recognize the mobile hard drive how to solve
The computer does not recognize the mobile hard drive solution one:
USB connector not open: On some old machines (including some brand-name machines) Although there is an external USB interface, but in the BIOS
Computer does not recognize the solution of mobile hard disk:
Method One: System-related Setup problems
1, do not think that as long as the motherboard has a USB interface can use the mobile hard disk, but also depends on whether the system support. Windows2000, Windows XP and the above version of the system can directly support the mobile hard
cleaning. However, this removal of the hard drive is to be careful. There is a great deal of learning.
1, can not touch the hard disk on the back of the circuit board, because in the climate is dry, people may have static electricity in hand, in this case, touch the hard disk on the back of the circuit board, "electr
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