The difference between bios selection ahci and rst

Generally, you can select the default SATA AHCI mode.

The Intel RST driver can be installed, but this technology generally uses solid-state drives or Optane memory to accelerate mechanical disks. If the system is installed on an SSD solid-state drive, it can usually be installed directly in AHCI mode. , there is no need to select RST mode in the BIOS.

Advanced Host Controller Interface (English: Advanced Host Controller Interface, abbreviation: AHCI) is a technical standard developed by Intel. A hardware mechanism that allows software to communicate with SATA storage devices, allowing SATA storage devices to activate advanced SATA features such as native command queuing and hot-plugging. (Recommended learning: PHP Video Tutorial)

AHCI defines a memory architecture specification in detail for hardware manufacturers to standardize how to transfer data between system memory and SATA storage devices. Currently (March 2014 Month) The latest AHCI specification is version 1.3.1.

Many SATA device controllers can individually activate the AHCI function or combine it with the RAID function. Intel recommends that if you use the RAID function on its AHCI-supported chipset, you can use AHCI mode to set up RAID for maximum flexibility, because AHCI The RAID formation mode can be switched in the installed operating system.

On general hard drives, most manufacturers provide relevant support technologies for 3.5-inch and 2.5-inch hard drives.

AHCI implements native SATA functionality by including a PCI BAR (Base Address Register). Due to the successful research and development of the AHCI unified interface, the development work of products that support Serial ATA has been greatly simplified. Operating system and device manufacturers save the work of developing separate interfaces. Instead, they can operate directly on the unified interface, which can include: Many functions including NCQ (Native Command Queuing).

AHCI mode is the opposite of IDE mode. You need to install the SATA driver when installing the system (and it seems that only this mode can turn on the NCQ function).

RAID mode can only be implemented with two hard drives. For specific information, you can refer to the online articles on setting up RAID. If you only have one hard drive, you can ignore it.

Supplement: NCQ is a new hard disk technology. Simply put, it will be faster to jump from one program to another after turning it on. To implement it, you must first select it in the BIOS. AHCI mode, and then install the corresponding driver (usually in the motherboard driver disk) when installing the system. After installing the system, you can basically implement

Intel Rapid Storage Technology (RST ), Intel Rapid Storage Technology

The early version was called Intel Matrix Storage Manager (IMSM for short). This program integrates the disk management program console and SATA, AHCI, and RAID drivers. It is mainly used for disk management, application support, status viewing and other applications of Intel chipsets. A simple understanding is to use a solid-state drive or memory as a cache for a mechanical hard drive to achieve acceleration.

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