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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
One, what is the hard drive extraction box
Now in the market, we can see that there is a hard drive cartridge on sale, the extraction box is divided into built-in and external 2 kinds. The built-in hard disk box is similar to a dr
and cannot boot
A hard disk is an external storage device for magnetic media, on each side of the platter, a plurality of concentric circles with the axis of rotation and a certain magnetic density are divided into tracks (Track), each of which is divided into several sectors (sector), and the data is stored on the hard disk by sector.
(1) What is the main boo
the spring force and quickly return to the docking frame when an accidental power loss occurs. So to keep the head of the drive in the disk radius, the drive motor (seek motor) of the head arm will continue to pass current. And let the head arm in the hard disk idle for a few minutes immediately after the unloading action, return to the docking rack, both to hel
, because the hard drive is a mechanical drive, so the head to its search, read, write speed is faster, The distribution of the partition is also from the outer ring to the inner ring, so the C disk relative to the D plate and so on the outside, this is why we feel the C-disk than D, E and other partitions to be faster reasons.
Understand the above knowledge, we
Jump out of hard drive misunderstandingSeveral common sense questions that have been misleading Gao Peng for many years are:1. Hard Disk logical bad sectors can be repaired, but physical bad sectors cannot be repaired. The actual situation is that bad channels are not divided into logical and physical bad channels. I don't know who invented these two concepts. Th
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
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
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
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
pursuit of stability, speed of the player or the love with the SCSI hard drive.
Hard drives with different SCSI specifications:
With 68-pins Wide SCSI connectors, you can transfer data using the 16-bit channel width.
With 60-pins narrow SCSI connectors, data can only be transmitted in a 8-bit channel width.
Jimper (jumper) settings, mainly used to adjust the
, because the hard drive is mechanical transmission, so the head of its search, read, write faster, The distribution of the partition is also from the outer ring to the inner circle, so the C disk relative to the D disk, etc., which is why we feel C disk than D, E and other partitions faster than the reason.
Understand the above knowledge, we can reasonably use the hard
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
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
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
How to fix the computer hard drive?
Hard Drive failure Scan
One: Unable to find the hard drive situation
For hard drives that appear with an "HDD not detected" error, fir
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
Warm tip: It is important to note that the hard disk is a sophisticated device, very fragile, before maintenance should first wash hands, release the residual static electricity before operation.
Hard Drive failure Scan
One: Unable to find the hard drive situ
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