How to open AHCI mode under Win7 system

The first use of solid-state hard disk installation Win7 system needs to see if the AHCI mode is turned on, if it does not open seriously affect the performance of solid-state drives, before installing the Win7 system need to open AHCI mode, if the Win7 system is installed, When you go into the BIOS setting to open AHCI mode, a blue screen will appear, and the computer system will not get in. Therefore, you must first open AHCI mode and then install the Win7 system, to open the AHCI mode of the specific way to refer to the following:

In Win7 system to open AHCI mode first need to change the registry, how to: Press the Windows key +r key Input "regedit" Enter the Registry Editor. 2. In the left title bar of the Registry Editor window, navigate to the Hkey_local_machinesystem CURRENTCONTROLSETSERVICESMSAHCI Branch, and then in the right window, double-click Start. 3. In the Edit DWORD Value dialog box that pops up, change the value in the Values data box from 3 to number 0 (figure below), and click OK. and close the Registry Editor window and restart your computer.

After changing the registry, you can reboot the system, press 3-5 to enter the BIOS continuously when the system starts, select integrated peripherals ENTER.

After entering the Integrated Peripherals page, select PCH SATA control mode Enter, the default display is IDE mode, select the third option AHCI then enter. Press F10 to save the reboot system.

After the reboot, the system will default to install AHCI driver, usually 30 seconds after entering the desktop will be prompted to reboot, do it. After restarting, go to the motherboard official website to download the latest AHCI driver (Win7 is the thousand old demon, decisively replaced). The following illustration takes my motherboard as an example

Download the driver for the 7z compression package format, extract to the same file name standby, and then right-click the computer-click Manage, then open Device Manager-ide ATA/ATAPI Controller-driver-Update Driver-select "Browse computer to find driver software"- In the pop-up Browse window to navigate to your download and extract a good AHCI driver "Click OK-Update-updated" in the lower right-hand corner of the taskbar will be more than one to remove the USB port prompts, do not worry about it, the system prompts to restart immediately. Follow the prompts to restart the computer

If there is no accident, in this restart process, careful friends will find, in the Win7 logo that screen began until the time to enter the desktop has shortened a lot, the exact say is a lot of fluency. Haha, this means your AHCI mode has been turned on, quickly into the computer-management to see it, successfully opened the AHCI after the computer-admin panel-ide ATA/ATAPI Controller display status, very refreshing. AHCI mode is not turned on here, the IDE is displayed.

First the official data sheet of the West 1T Blue Plate (WD 10eals-00z8a0)

Then on the West 1T Blue Disk benchmark chart After the AHCI mode is opened, the graphs are more stable than the IDE mode. As for reading speed, with more than half a year BT hundreds of G film can also have this performance, I should say that their RP good or open AHCI mode after the hard drive really to power?

Finally, the system default scoring chart after the AHCI mode is turned on to smash a rumor that the AHCI mode can improve the system score. I do not know those who open AHCI mode after the system score of 6.5 or even 7.2 of the warrior is how to do it, seemingly I see is also a platform, is not a platform of disk controller technology than Intel's latest Sandy Bridge platform to be advanced?

Since many of the AMD platform's friends have asked for a platform for AHCI tutorial in their responses, I would also add that the AMD platform will have two more steps to fully unlock AHCI and NCQ than the Intel platform because of the different chipset. That is, the AMD platform's friends in order to complete this post all the above steps, but also need to go to the motherboard to the official download RAID driver and update, the last download installation AMD RAID Xpert Open NCQ.

The above is the Win7 64-bit system to open the AHCI mode of the entire process, interested friends to try it. After all, do not need to reload the system so troublesome, according to my method, move the finger a few minutes can let your hard disk work in a better state. and personal feeling when the boot from the win7 icon to enter the desktop process and open the software and so on than the IDE mode slightly faster, the use will be more fluent. is not a psychological function, is really effective ha. Also, those who say to turn on the slow friend, I tell you the reason: that is because after the AHCI, on the boot will be more than one AHCI self-test process, the successful open friend will see the self-test information on the boot.

If a friend opens AHCI mode after the hard drive performance significantly reduced or a variety of incurable diseases, according to the first step of the method into the registry MSAHCI branch to change the start function value back to 3, and then the computer restart. In the BIOS, the AHCI mode is recalled to the IDE and the reboot system is saved to return to IDE mode. But this is not usually the case.

The above is to introduce you to the Win7 system how to open the AHCI mode of the specific method, as long as you follow the steps above, it will be easy to handle.