AHCI describes a PCI-like device whose primary role is to play an interface between system memory and Serial ATA devices, and it is common across different operating systems and hardware. It is understood that using AHCI mode in the motherboard BiOS in XP will make the system run faster, then, can it be realized in Windows7? After reading this article, you may get the answer. It is reported that many people It is believed that the opening of AHCI is equivalent to adding a power motor, so that it does not have to run so hard. Friends who want to open AHCI must be supported by the motherboard.
many of my friends asked how to open the AHC, I would simply say speak. Boot at the same time click DEL to enter the BIOS, in the Advanced option, the default IDE in SATAcontrollerMode is adjusted to AHCI, (of course, the different motherboards of its BiOS may be different, you look at it to see the ACHI options, the following a simple example)
AHCI technical presentations:
in AHCI1.0 specification, Intel introduced the NCQ (NativeCommandQueue) and hot swap function. After receiving the read/write command, the hard disk supporting NCQ technology will reorder the access address according to the instruction, which reduces the reading time, makes the data transmission more efficient, and effectively extends the service life of the hard disk.
AHCI, called the SerialATAAdvancedHostControllerInterface (Serial ATA Advanced Host Controller Interface), is in Intel's guidance, developed jointly by a number of interface standards, its research and development team members include Intel, AMD, Dell, Famous companies such as Marvell, Maxtor, Microsoft, RedHat, Seagate and StorageGear. AHCI describes a PCI-like device whose primary role is to play an interface between system memory and Serial ATA devices, and it is common across different operating systems and hardware. In AHCI1.0
specification, Intel introduced the NCQ (NativeCommandQueue) and hot swap function. After receiving the read/write command, the hard disk supporting NCQ technology will reorder the access address according to the instruction, which reduces the reading time, makes the data transmission more efficient, and effectively extends the service life of the hard disk.
AHCI technology needed to support both the hard drive and motherboard. For the hard disk, there is currently no product that fully supports AHCI 1.0, but some hard disks already support the NCQ function, which can be implemented with the motherboard supporting AHCI.
motherboard, BiOS association in some models, you can see and AHCI SATA work functions of these two options, when the mode is set to Enhanced SATA, AHCI or select the Disable Enable; SATA mode when When set to Compatible, the AHCI option is not visible (default Disable). In summary, there are three combinations of possible combinations of these two settings.
hard disk AHCI mode for many ordinary users, is believed to be very strange jargon, but with the current hard disk faster and faster product development, AHCI became necessary to know something for everyone.