Intel Ich5R Serial Ata Raid Introduction; Parallel Ata (P-Ata) And Serial Ata (S-Ata) Device Configu Rations Supported By Intel Ich5R; Ata Operate Mode - Acer Veriton 7600G User Manual

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Intel ICH5R Serial ATA RAID Introduction

The south bridge ICH5R provides a hybrid solution that
combines two independent SATA ports for support of up to two
Serial ATA (Serial ATA RAID) drives.
Serial ATA (SATA) is the latest generation of the ATA interface.
SATA hard drives deliver transfer speeds of up to 150MB/sec.
• Supports 150 MB/s transfers with CRC error checking
• Data handling optimization including tagged command
queuing, elevator seek and packet chain command
Parallel ATA (P-ATA) and Serial ATA (S-ATA) device
configurations supported by Intel ICH5R

ATA Operate Mode

There are two modes to choose from: Legacy mode and Native
mode.
1. Legacy 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 S-ATA and P-ATA to Legacy Mode
• Maximum 4 ATA devices to connect under Combined mode
or Non-Combined mode
a Non-Combined Mode: S-ATA devices only - Maximum of
2 devices
b Non-Combined Mode: P-ATA devices only - Maximum of
4 devices
c Combined Mode: S-ATA devices and P-ATA devices - 2
devices each (Maximum of 4 devices)
2. Native Mode
• System BIOS will search all available IRQs for HDD use
• New OSs that support Native Mode (WinXP, Windows.NET
Server) can set S-ATA and P-ATA to Native Mode
• Comprehend both Legacy and/or Native Modes
• Maximum of 6 devices can be connected (4 P-ATA and 2 S-
Appendix C: RAID introduction( for R series model only)