As in the BIOS, switch the hard drive mode with AHCI on the IDE. AHCI or IDE - what is better? Description of the mode, characteristics

This is a new SATA mode to work with devices memorable type. Solely in it the computer can fully use All SATA features, or rather:

1. Fast replacement hard disk. And if more, it means that it can be changed without turning off the computer. When working S. servers it is very convenient.
2. NCQ. - Thanks to this technology, the number of displacements of the heads that make reading at times is reduced. Thereby speed Hard disk increases when using it at once with several programs.

If a activate ACHI, then you will quickly access files that are stored on the ROM, as well as the computer will work much faster. Of course, on the usual home PC, the increase will not be noticeable. However, if support this option Available, it will be better if you enable it.

IDE mode - what is it

This is too much outdated The technology that was popular in the nineties and the beginning of the two thousandths. It was introduced in IBM PC - first computers. In it, data transmission took place on speed 150 Mbps per second. Many popular technologies he not supported. For example, without rebooting PC it was impossible to remove hDD or CD drive. Then these opportunities were added, but not every computer could use them. However, now it is still used.

How to enable ACHI / IDE mode

Switching between ACHI and IDE occurs through Bios.. Made before windows installation, in the following way:

In Windows 10, you can instantly switch on ACHI, for this:

What mode is better

Of course, it is best to choose Achi.. And it can be understood by comparing two modes. IDE should choose if in your system no drivers on SATA. All modern PCs support SATA, that is, if you choose an IDE, then it will happen emulation, And this will not give any increment to the performance that we do not need.

Manufacturers hard disks Constantly looking for ways to speed up the work of their products. Relatively recently, the accumulative discs for computers worked in a fairly slow mode and their development concerned only an increase in the total amount of information carrier. The developers then invented a brand new type of SATA interface, which allowed access to newest species Acceleration of hard drives.

The main innovations were the following 3 functions:

1. NCQ (Native Command Queuing) - Built-in maintenance of command execution. This feature is designed to speed up the HDD operation. But essential speed turns out to hard drives sSD type (Solid State Drive), which are known for their high performance due to the quick processing of command execution.
2. Hot Plug - Translated from English means "hot connection", which should be understood as replacing the hard disk without turning off the computer. You should only disconnect the disk to the program method (as a flash drive). This feature may be interested in users who constantly work with several media simultaneously. This will allow you to quickly change hard drives without stopping the work on the computer.
3. Trim - Translated from English "Cut", that is, this feature allows you to delete files or format a hard disk without harm. As you know, with such operations, the disk is flawed faster. This technology It is relevant for modern SSD carriers, as it was created for competitiveness with ordinary HDD. SSD The carrier with such a function has excellent speed and durability.

But that all these features have become available, you will need to configure the SATA interface to a special AHCI mode in BIOS.

What is AHCI?

AHCI (Advanced Host Controller Interface) is a development intel companieswhich is designed to replace the interface for a long outdated ATA controller. The main reason for the replacement is its inability to maintain the order of execution of commands and the hot-swap function.

The AHCI feature is not supported by all motherboards chips. In some cases, the fee chip provides support for AHCI, but it may not be implemented in the BIOS itself and will be simply not available. This problem can be solved using the BIOS firmware update. In addition, you can try to update the BIOS by the informal firmware, but this is done for your own fear and risk, as there is a chance of spoiling a motherboard.

Until today, the main problem is the problem of changing the interface with ATA on AHCI (Blue Screen of Death - Pokr. BSOD). At the same time, the Stop 0x0000007B, incoCessible_Boot_Device is displayed at the bottom of the BSOD. Eliminate blue screen It was possible only by canceling all previous steps in BIOS or reinstalling operating system Windows. In the future, it turned out that the cause of this was the lack of drivers that are required for the operation of AHCI.

Switching the SATA interface to AHCI mode before installing the OS

SATA Mode Selection in BIOS from Phoenix

Before you need in BIOS motherboard Change SATA configuration. You can make it by pressing the F2 / DEL key after turning on the computer. Typically, the SATA Configuration option is in the Advanced section, but its name may vary depending on the bios. It is necessary to find it and enable the AHCI controller mode. Save the Save and Exit and restart the computer.

SATA interface switch to AHCI mode on an existing OS

On already launched windows 7 You must complete the operation of all applications and run the "Run" command by simultaneously pressing the Win + R keys (Win key is usually indicated by the Windows logo). We recruit the regedit command to open and click OK. A registry window will appear in which you want to open the path section: HKEY_LOCAL_MACHINE \\ SYSTEM \\ CURRENTCONTROLSET \\ SERVICES \\ MSAHCI.

In the opened directory, it is necessary to change the value opposite Start to 0 and save the registry settings. Then restart the computer and turn on aHCI mode Through the BIOS, as described in the previous paragraph. After booting the Windows system, it is necessary to reinstall the SATA driver, which are usually on the disk that comes with motherboard or laptop. If everything is done correctly, Windows will detect new equipment and install it.

Together with the functions described above, you will get a full-fledged throughput SATA III, which is 6 GB / s.

Automatic switching Windows 7 and 8 V mode AHCI or RAID

Due to the fact that the transition to the AHCI mode caused many problems with Windows users, Microsoft has developed special utilityallowing you to prepare an operating system for changing the mode on AHCI or RAID. It can be downloaded on the official website of Microsoft. After starting the utility, the utility itself will fulfill all the necessary actions. It will only be necessary to restart the system, simultaneously switched in the BIOS to AHCI mode. In the future, Windows itself will install the driver of the AHCI driver.

In Windows 8, it is sufficient to switch to the BIOS on the AHCI mode and load the OS in safe mode. If you failed to run the system in safe mode, you can open the "Run" window using Win + R and enter the msconfig command. In the "Download" section it is necessary to note the item " Safe mode"When you choose the option" minimum ". After that, the system will boot in the right mode and install AHCI drivers.

Instruction

When connected hard disk bios. Usually determines it yourself, there should be no problems with this. But considering that the hard drives have different interfaces - the old IDE and the new SATA - you should check the installations and, if necessary, set the necessary. If earlier Idea were exhibited, then disk SATA The computer will see, but hard drive will work much slower than it should.

To make any changes in the BIOS settings, in basic system I / O first need to enter. Usually, at the start of the computer, a hint appears - for example, Press F2 to ENTER SETUP. If there is no such prompt, try the following keys: Del, Esc, F1, F2, F3, F10. Sometimes key combinations are used, for example: Ctrl + Alt + Esc, Ctrl + Alt + Del, Ctrl + Alt + Ins, Fn + F1.

After entering the BIOS, you must find the desired line to change the settings. Considering that bIOS version There are different, look at the SATA, IDE, AHCI references tabs. Having found them, change the IDE on SATA by selecting the required value from the list. The desired value can be indicated and as SATA AHCI Mode or AHCI Mode. In some cases, it is necessary to simply set the value of the Disabled (disabled), and SATA has enabled (enabled).

After setting the desired values, save the changes by pressing F10. In the window that appears, select YES or enter Y and press ENTER. After rebooting, the disk will work in the required mode.

Sometimes the user tries to change the SATA value in the BIOS, since when trying to install OS, the system reports that no disk is found. The reason for this lies in the absence of SATA drivers on the installation disk. One of the options for solving the problem is the temporary disk in the IDE mode, but it will be more correct to find a newer installation disk With Windows. On disks with Windows 7 and Windows XP SP3 this problem No longer found.

Do not forget that the SATA disks have a different power connector than the disks with the IDE interface. To connect, you may need a power adapter.

Sources:

• how to change AHCI on IDE

When you connect to computer hard The disk can happen that it is not displayed in My Computer and is not even in the Device Manager. Then the first thing you need to see if the hard drive of the BIOS computer sees. If the BIOS Winchester is still determined, it means that the system recognized it. In such cases, the hard disk will need to be simply manually connected in the system itself.

You will need

• - Computer with Windows.

Instruction

Turn on the computer and immediately after that press the DEL button on the keyboard. So you will be taken from the BIOS menu in which you select Main menu. It has information about all the main devices connected to the motherboard.

Search hard, depending on the connection interface, how it is equipped. If your hard disk is equipped with an IDE interface, you need to search for it in the Primary IDE Master and Secondary IDE Master sections. If the system is a hard disk, then information about the hard disk model, the manufacturer and containers of the hard drive, is displayed opposite the row. Selecting this section and pressing Enter, you will see more information about the hard disk. If the system is connected hard drive, then not detected will be the inscription.

If you have a hard disk with the SATA connection interface, it means to search, respectively, you need to be opposite SATA items. For example, you connected the hard drive to the second SATA connector on system board. Consequently, information about it should be opposite the SATA point 2. To view additional informationYou also need to select this section and press ENTER. As in the previous case, if the system does not recognize the connected device, you will see the inscription not detected.

The system must recognize hard drives immediately after connecting them. If you have connected a hard disk, and the bios does not see it, there may be several reasons. Perhaps departs the connection loop. Then you need to check and connect again. It may also be that the plume of the connection failed, it means you need to try another. It may also happen that you forgot to connect the power to the Winchester. Do not exclude the connection interface breakdown on the system board itself. It is worth trying to connect the hard disk to another interface. The surest way to check the hard disk for service is to connect to another computer.

Sources:

• does not find a hard drive

Mode SATA significantly expands working with hard disk Computer. For example, hard drives that work with this interface can be used in AHCI mode. This significantly speeds up the hard disk operation, lowers the noise and speeds up the operating system boot. You can also choose other SATA modes. More information about each of them can be found on various Internet resources or with the help of appropriate literature.

You will need

• - Computer with Windows.

Instruction

You can enable SATA mode in the BIOS-Menu of the system board. Turn on the computer. Immediately after turning on the power, you need to press the DEL key. Depending on the model of your motherboard, instead of the DEL key can be other options. You can learn more about this in more detail about this in the documentation for your system board or on the manufacturer's website.

Depending on the model of the motherboard, the SATA mode option can be in different sections. Basically, this option is in the Configuration tab. In this tab, find the row on Chip Sata Chanel. Set this value Enable, "Enabled". Nearby should also be located a string on Chip Sata Type. In this row you need to choose which SATA mode will work your hard drive.

From all available options it is recommended to select Native IDE. Hard work Disk in this mode is usually faster. Also in the list of possible modes can be AHCI, which guarantees the maximum fast work Winchester. Officially supported only in operating windows systems Vista and Windows 7. If AHCI is listed, stop your choice on it. After selecting the desired option, exit the BIOS, while defining all the settings. The computer will reboot, and then the hard disk will work in the selected mode.

If you have chosen AHCI mode, and after exiting the BIOS and save all the computer settings, then you need to select another SATA interface. This is due to the fact that in some cases for proper work AHCI Mode You need to download individual drivers that can be found on the motherboard manufacturer website. In this case, select Native IDE. Later, if necessary, you can download drivers and install AHCI. Sometimes it may be necessary to reinstall the operating system.

Each hard drive in modern computer Connected to the system through the controller. This controller can usually communicate with a hard disk through a number of different protocols. For maximum compatibility, many computers in BIOS are configured to use older IDE Interface for interacting with modern SATA hard drives.

This parameter is acceptable for the average computer user, but IDE lacks support for new technologies, such as Native Command Queuing (NCQ translated means that type Organization queue teams) And hot connecting hard drives (add or remove discs without rebooting a computer).

Intel invented new interface The controller is known as AHCI (Advanced Host Controller Interface), which supports modern SATA hard drives. If you have a hard disk that supports NCQ, it is worth trying to change the interface to increase the disk performance

The main problem that impedes users to change the storage protocol with IDE on AHCI in the past was a blue screen that can be eliminated only by canceling BIOS changes and reinstalling Windows. The cause of the problem is the driver. Only the IDE drivers are included in the window, and AHCI drivers are missing, and therefore Windows cannot read from the hard disk and gives the BSOD with an error code 0x0000005B.

Now there is a simple solution that will allow you to switch between IDE and AHCI in the BIOS and Windows OS will be loaded without problems. The point is to download the AHCI drivers in Windows before making changes to the BIOS settings.

Turning on AHCI in the registry

Enable mode Ahci in bios. in the following way:

• Press the F2 key on the computer logo screen and enroll BIOS.
• In the dialog box bIOS utilitiesSelect Advanced -\u003e IDE Configuration.
• In the IDE configuration menu, select Configure SATA.
• In the SATA menu, the parameters
  AHCI for SATA disks (without RAID).
• Press the F10 key to save the changes and exit

What to do if you have a hard disk with the SATA interface in your computer, and before installing the OS you forgot to switch to the BIOS option "SATA MODE" With meaning IDE on value SATA. (The name of the option in the BIOS may differ)? Usually, already installed Windows After switching the value of this option, it gives a blue screen. Some do not find anything better, how to reinstall the OS. But there is another way.

I recently had such a problem. Tested the hard disk in the client laptop with the MHDD utility, having previously switched to the BIOS option "SATA MODE" into IDE mode. After testing, I forgot to switch back and installed the operating system. I found my mistake already at the installation of the drivers in installed systemwhen I did not want to install driver Intel AHCI. Fortunately, the problem was able to solve without reinstalling the OS, just fighting in windows registry. About how to do it, read on.

First of all call the "Run" dialog box. It is called through the Start menu or the Win + R keys combination. In the "Run" dialog box, we enter and execute the command. "REGEDIT" (without quotes).

In the registry key that opens, we find the following section:
HKEY_LOCAL_MACHINE \\ SYSTEM \\ CURRENTCONTROLSET \\ SERVICES \\ MSAHCI

In this section, we need to change the "Start" key value to 0.

Now we find the following section:
HKEY_LOCAL_MACHINE \\ SYSTEM \\ CURRENTCONTROLSET \\ SERVICES \\ IASTORV

And also change the value of the "Start" key to 0.

After the actions described above, reboot PC. When rebooting, we enter the BIOS and change the value of the "SATA MODE" option with an IDE value to AHCI. We maintain changes bIOS settings And reboot the computer.

After rebooting, Windows will find new equipment and installs its driver. After that, you can safely roll the Intel Ahci driver, because now our hard disk will work in AHCI mode.