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Common Options : Enabled, Disabled

Quick Review

AHCI is the acronym for the Advanced Host Controller Interface. It is a new interface specification that enables advanced SATA features like Native Command Queuing (NCQ) and hot-plugging. Unless it is specifically enabled, the SATA controller will run in IDE emulation mode.

This BIOS feature controls the SATA controller's AHCI functionality.

When enabled, the SATA controller's AHCI functionality is enabled.

When disabled, the SATA controller's AHCI functionality is disabled. The SATA controller will run in IDE emulation mode.

If your system hardware supports AHCI, you should enable AHCI, even if you do not intend to use features like hot-plugging. This is because switching from the IDE emulation mode to AHCI mode is often problematic. Before enabling AHCI for operating systems that do not have native AHCI support though, you should first load the proper device driver.

On the other hand, disabling AHCI support allows for maximum compatibility with older hardware. Even with the proper AHCI driver installed, it is possible for a system to crash while installing or booting up an operating system. Disabling this BIOS in such cases will normally resolve the issue.

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