Gigabyte GA-H55M-S2V Manual - Page 43

2-6 Integrated Peripherals CMOS Setup Utility-Copyright (C) 1984-2010 Award Software Integrated Peripherals SATA AHCI Mode SATA Port0-3 Native Mode USB Controllers USB Legacy Function USB Storage Function Azalia Codec Onboard H/W LAN Green LAN } SMART LAN Onboard LAN Boot ROM [IDE] [Enabled] [Enabled] [Enabled] [Enabled] [Auto] [Enabled] [Disabled] [Press Enter] [Disabled] Item Help Menu Level  Move Enter: Select F5: Previous Values +/-/PU/PD: Value F10: Save F6: Fail-Safe Defaults ESC: Exit F1: General Help F7: Optimized Defaults SATA AHCI Mode (Intel H55 Chipset) Allows you to decide whether to configure the SATA controllers integrated in the Intel H55 Chipset to AHCI mode. IDE Configures the SATA controllers to IDE mode. (Default) AHCI Configures the SATA controllers to AHCI mode. Advanced Host Controller Interface (AHCI) is an interface specification that allows the storage driver to enable advanced Serial ATA features such as Native Command Queuing and hot plug. SATA Port0-3 Native Mode (Intel H55 Chipset) Specifies the operating mode of the integrated SATA controllers. Disabled Allows the SATA controllers to operate in Legacy IDE mode. In Legacy mode the SATA controllers use dedicated IRQs that cannot be shared with other device. Set this option to Disabled if you wish to install operating systems that do not support Native mode. Enabled Allows the SATA controllers to operate in Native IDE mode. Enable Native IDE mode if you wish to install operating systems that support Native mode. (Default) USB Controllers Enables or disables the integrated USB controllers. (Default: Enabled) Disabled will turn off all of the USB functionalities below. USB Legacy Function Allows USB keyboard to be used in MS-DOS. (Default: Enabled) USB Storage Function Determines whether to detect USB storage devices, including USB flash drives and USB hard drives during the POST. (Default: Enabled) - 43 - BIOS Setup