HP dc7900 - Convertible Minitower PC Using

5
eSATA Port Availability
The eSATA port can be hidden in F10 Setup at Security > Device Security > eSATA. Default is
Available.
Figure 4 eSATA device security
Software Drivers
The eSATA port does not require a driver to function. However, eSATA hot-plug support does require an
AHCI driver with hot-plug support to be loaded in the operating system. In addition, the system must be
set to SATA emulation mode of AHCI or RAID in BIOS (See “BIOS Interface” on page 3).
The Windows XP or Vista image that ships with the HP Compaq dc7900 Business PC has the Intel AHCI
driver (iastor.sys) pre-loaded. The system can be freely switched to and from IDE to AHCI.
For customers who do not use the pre-installed HP image, there are several scenarios for using AHCI
mode and eSATA hot-plug capability:
1. Existing Windows Vista images.
The Windows Vista native AHCI driver supports eSATA hot-plugging. The system is AHCI and eSATA
hot-plug capable. See case #4 for enhancing Windows Vista with the Intel AHCI driver.

HP dc7900 - Convertible Minitower PC Specifications

General

Chipset	Intel Q45 Express
Memory	Up to 16 GB DDR2 SDRAM
Audio	Integrated High Definition Audio
Form Factor	Convertible Minitower
Processor	Intel Core 2 Duo, Core 2 Quad, Pentium Dual-Core
Storage	SATA Hard Drives
Graphics	Intel Graphics Media Accelerator 4500, optional discrete graphics
Optical Drive	DVD-ROM, DVD+/-RW
Network	Integrated Intel Gigabit Network Connection
Ports	USB 2.0, serial, parallel, audio in/out
Expansion Slots	PCI, PCIe x1, PCIe x16
Operating System	Windows Vista, Windows 7