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Configuring Parallel ATA and Serial ATA devices
ATA Operate Mode
There are two modes to choose from: Legacy mode and Native mode.
1Legacy Mode
•System BIOS assigns 14 and 15 IRQs for HDD use
•Older OSs that do not support Native Mode (DOS, Win2K, Win98/ME...) should set
•Maximum 4 ATA devices to connect under Combined mode or
a
b
cCombined Mode:
2Native Mode
•System BIOS will search all available IRQs for HDD use
•New OSs that support Native Mode (Windows® XP Professional, Windows® 2000) can set
•Comprehend both Legacy and/or Native Modes
•Maximum of 6 devices can be connected (4
Note: Proper support; BIOS provides a BIOS setup option for user selection of Native Mode or Legacy Mode.