Asus P5W - Manual (Page 92)

- Chapter : BIOS setup
For details on AHCI, go to:
www.intel.com/support/chipsets/imst/sb/CS-012304.htm
www.intel.com/support/chipsets/imst/sb/CS-012305.htm
The SATA controller is set to Native mode when this item is set to [RAID] or [AHCI]
The Onboard IDE Operate Mode and sub-menu items appear only when the
Configure SATA As item is set to [Standard IDE].
Onboard IDE Operate Mode [Enhanced Mode]
Allows selection of the IDE operation mode depending on the installed operating
system (OS). Set to [Enhanced Mode] if you are using native OS including
Windows ® 2000/XP or later version. Configuration options: [Disabled] [Compatible
Mode] [Enhanced Mode]
If you are using a Serial ATA optical drive, set this item to [Compatible Mode]
before creating a boot disk using the support CD.
Enhanced Mode Support On [S-ATA]
Allows you to use native OS on Serial ATA and Parallel ATA ports. It is
recommend that you do not change the default setting for better OS
compatibility. In this setting, you may use legacy OS on the Parallel ATA ports
only if you do not install any Serial ATA device.
The P-ATA+S-ATA and P-ATA options are for advanced users only. If you
set to any of these options and encountered problems, revert to the default
setting S-ATA.
Configuration options: [S-ATA+P-ATA] [S-ATA only] [P-ATA only]
Combined Mode Option [Primary P-ATA + S-ATA]
Allows you to select the IDE ports to use. Configuration options: [Primary
P-ATA+S-ATA] [S-ATA only] [P-ATA only]
The S-ATA and P-ATA options are for advanced users only. If you set to
any of these options and encounter problems, revert to the default setting
[Primary P-ATA+S-ATA]. Configuration options: [Primary P-ATA+S-ATA]
[S-ATA] [P-ATA]
The Combined Mode Option item appears only when the Onboard IDE
Operate Mode item is set to [Compatible Mode].
Onboard Serial-ATA BOOTROM [Enabled]
Enables or disables the onboard Serial ATA boot ROM.
Configuration options: [Disabled] [Enabled]
The Onboard Serial-ATA BOOTROM appears only when the Configure SATA
As item is set to [RAID].