HP kp721av Manuale Utente

The SFF and CMT form factors provide a SATA/eSATA port (connector P64 on the system 
board) that can support an external SATA (eSATA) storage device. The eSATA interface provides 
higher bandwidth than USB 2.0 and Firewire (1394) interfaces.

An optional bracket/cable assembly (Figure 5-2) is required to attach an eSATA device to the 
SFF or CMT system. 

The following operating parameters of the eSATA interface can be set in the ROM-based Setup 
utility:

■

Transfer speed: 1.5 or 3 Gbps (default set to 1.5 Gbps for reliability)

■

Emulation mode: IDE, AHCI, or RAID (default set to AHCI)

■

Port availability: Available or Hidden (default set to Available)

In the IDE or AHCI modes, the system BIOS ROM controls the hard drives and Removeable 
Media Boot setting applies. In the RAID mode, the RAID option ROM controls the hard drives 
and the Removeable Media Boot setting does not apply. 

For hot-plug functionality, the eSATA port must be set to the AHCI or RAID mode and an AHCI 
driver with hot-plug support must be loaded onto the system. This driver is pre-loaded on 
systems shipped with a Windows XP or Vista image. If the system is wiped clean or the Windows 
OS is re-installed, the AHCI driver can be loaded by installing the OS while the eSATA 
emulation mode is set to AHCI.