Intel Arima LH500 User Manual

Page 53

Parallel ATA

Disabled
Channel 0
Channel 1
Both

Enable the PATA.

Serial ATA

Disabled
Enabled

Enable the SATA.

Native Mode Operation

Auto
Parallel ATA
Serial ATA
Both

Choose Native Mode for ATA.

Note: Certain OS is not
supported under native mode.

Legacy USB Support

Disabled
Enabled

Enable support for Legacy
Universal Serial Bus

Special Explanation regarding Native Mode, Serial ATA and Parallel ATA:

In native mode, devices are assigned by PCI; it can support up to six devices, four on Parallel ATA, two on
Serial ATA. Native mode is the default BIOS selection. It is represented by “Parallel ATA = BOTH“,
“Serial ATA = Enabled“ and “Native Mode Operation = Both”.
LH500 also supports legacy mode where devices are assigned by I/O, IRQ. Legacy mode can support up to
4 devices. Legacy mode is enabled by a combination of selections on Native Mode Operation, Serial ATA
and Parallel ATA items.
The following list shows the various combinations for legacy mode:
1.

“Parallel ATA = BOTH”, “Serial ATA = “Disabled”: in this combination, Parallel ATA supports all
four devices on channel 0 and 1.

“Parallel ATA = channel 0”, “Serial ATA = Enabled”, “Native Mode Operation = Auto”: in this
combination, Parallel ATA supports two devices on channel 0 and Serial ATA supports two devices.

“Parallel ATA = channel 1”, “Serial ATA = Enabled”, “Native Mode Operation = Auto”: in this
combination, Parallel ATA supports two devices on channel 1 and Serial ATA supports two devices.