What is the AHCI mode? Wind8 does not reinstall the system to open AHCI mode?

The computer sometimes needs to enable AHCI mode during use, but in many cases it needs to be completed under the reinstallation system. Let's take a look at what is AHCI mode and win8, 8.1 system can also easily open AHCI without reinstalling the system. .

AHCI is essentially a PCI-like device that acts as a generic interface between the system memory bus and the internal logic of the Serial ATA device (ie it is on different operating systems and It is universal in hardware). This type of device describes a general-purpose system memory structure with control and status areas, command sequence entry tables; each command table entry contains SATA device programming information, and a description table (for the transfer of data between the device and the host) pointer.

Wind8/8.1 does not need to reinstall the system to open AHCI mode method /step:

1. Execute regedit and find

HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\storahci\\StartOverride

0(REG_DWORD) 3 changed to 0

2, reset restarts the computer , press the keyboard to enter BOIS, ready to open AHCI

will “ SATARAID/AHCI Mode” change AHCI”

(some computers are IDE changed to AHCI)

3, AHCI to improve the read and write speed of mechanical hard disk or solid state hard disk

The above is Wind8/8.1 If you do not reinstall the system, you can turn on the AHCI mode. I hope to help you open AHCI.