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5-2 www.hp.com Technical Reference Guide

Input/Output Interfaces

5.2 SATA Interface

These systems provide one, three, or four serial ATA (SATA) interfaces that support tranfer rates

up to 3.0 Gb/s and RAID data protection functionality. The SATA interface duplicates most of

the functionality of the EIDE interface through a register interface that is equivalent to that of the

legacy IDE host adapter.

The ICH9 DO component includes Intel RAID migration technology that simplifies the

migration from a single hard to a RAID0 or RAID1 dual hard drive array without requiring OS

reinstallation. Intel Matrix RAID provides exceptional storage performance with increased data

protection for configurations using dual drive arrays. A software solution is included that

provides full management and status reporting of the RAID array, and the BIOS ROM also

supports RAID creation, naming, and deletion of RAID arrays.

The standard 7-pin SATA connector is shown in the figure below.

Figure 5-1. 7-Pin SATA Connector (P60-P63 on system board).

✎

The USDT system includes a notebook-type SATA connector (J102) that mates directly (i.e.,

without a cable) to a 2.5-inch mass storage device.

Table 5-1.

7-Pin SATA Connector Pinout

Pin Description Pin Description

1Ground 6RX positive

2 TX positive 7 Ground

3TX negative AHolding clip

4 Ground B Holding clip

5RX negative ----

Pin 1

Pin 7

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HP Compaq dc7800 Series Specifications

General

Processor	Intel Core 2 Duo, Intel Pentium Dual-Core, Intel Celeron
Chipset	Intel Q35 Express
Memory	Up to 8 GB DDR2 SDRAM
Audio	Integrated High Definition Audio
Form Factor	Ultra-slim desktop, Small form factor, Convertible minitower
Storage	80GB to 500GB SATA HDD
Graphics	Integrated Intel Graphics Media Accelerator 3100
Optical Drive	DVD-ROM, DVD+/-RW
Network	Integrated Gigabit Network Connection
Ports	USB 2.0, VGA, serial, parallel, audio in/out
Operating System	Windows Vista, Windows XP, FreeDOS
Expansion Slots	1 low-profile PCI, 1 low-profile PCI Express x16
Power Supply	240W