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Barracuda ES Serial ATA Installation Guide

ST3750640NS, ST3750840NS, ST3500630NS, ST3500830NS, 
ST3400620NS, ST3400820NS, ST3250620NS, and ST3250820NS

Serial ATA (SATA) Interface Disc Drives

Publication Number: 100424668, Rev. A, June 2006

Serial ATA interface disc drives are designed for easy installation. It is not
necessary to set any jumpers, terminators, or other settings on this drive
for proper operation.
With a Serial ATA (SATA) interface, each disc drive has its own cable that
connects directly to a Serial ATA host adapter or a Serial ATA port on your
motherboard. Unlike Parallel ATA, there is no master-slave relationship
between drives that use a Serial ATA interface.
You can use a Serial ATA drive in the same system with Parallel ATA drives
as long as both interfaces are supported on the motherboard or with a host
adapter. This makes it easy to add Serial ATA capability to your existing
system without removing existing Parallel ATA disc drives.

Note.

This drive ships from the factory with a jumper installed to operate
at 1.5 Gbits/second as shown in the illustration below. This is for
maximum compatibility with the widest variety of systems. If your
system supports 3.0 Gbits/second operation, you may remove this
jumper.

What you need

• A Phillips screwdriver and four 6-32 UNC drive mounting screws.
• A SATA interface cable (sold separately). Maximum length is 39 inches

(1 meter).

• A SATA-compatible power cable or adapter (sold separately).
• A system with a SATA connector on it, or a SATA host adapter and avail-

able PCI slot in which to install the adapter.

Refer to your computer system documentation to see if your system sup-
ports SATA on the motherboard and locate the SATA connector. If your
system does not have a SATA connector on the motherboard, you must
purchase a SATA host adapter that is compatible with your computer and
operating system and install it with the appropriate device driver according
to the host adapter manufacturer’s installation instructions.

Note.

See www.seagate.com/support/disc/sata/ for a list of companies
that sell SATA components.

Handling precautions/electrostatic discharge protection

• Disc drives are fragile. Do not drop or jar the drive. Handle the drive only

by the edges or frame.

• Drive electronics are extremely sensitive to static electricity. While

installing the drive, wear a wrist strap and cable connected to ground.

• Turn off the power to the host system during installation.
• Do not disassemble the drive. Doing so voids the warranty. See the

Warranty information on page 2.

• Do not apply pressure or attach labels to the circuit board or to the top of

the drive.

The easiest way to install your drive in a Windows system

To successfully install and obtain the maximum capacity from the drive,
use DiscWizard for Windows disc drive installation software utility. This util-
ity is available exclusively from Seagate. You can download this free disc
drive installation software from our web site at www.seagate.com/support
or run the program directly from your web browser.

Note.

Older versions of DiscWizard do not recognize Serial ATA model
numbers. Make sure that you use DiscWizard for Windows or later
when installing a Barracuda

 ES Serial ATA disc drive.

To run DiscWizard:

Follow the instructions on the download page at www.seagate.com to cre-
ate a diskette and complete the installation. 

If you cannot run DiscWizard

, follow the instructions on this installation

sheet to install and configure your drive.

Breather filter hole precaution

Caution.

Do not cover, seal, or insert any object into this hole. If this hole
is covered, sealed, or penetrated by any object, the drive reliabil-
ity may be compromised and could lead to permanent damage
and voids the warranty.

Attaching cables and mounting the drive

1. Attach one end of the drive interface cable to the SATA interface con-

nector on your computer’s motherboard or SATA host adapter (see
your computer manual for connector locations).

Note.

Serial ATA connectors are keyed to ensure correct orientation.

2. Attach the interface and power cables to the drive. 
3. Secure the drive using four 6-32 UNC mounting screws in either the

side-mounting or bottom-mounting holes. Insert the screws no more
than 0.20 inches (5.08 mm) into the bottom-mounting holes and no
more than 0.14 inches (3.55 mm) into the side-mounting holes.

Note.

Do not overtighten the screws or use metric screws. This may dam-
age the drive.

Configuring the BIOS

Close your computer case and restart your computer. Your computer may
automatically detect your new drive. If your computer does not automati-
cally detect your new drive, follow the steps below.
1. Restart your computer. While the computer restarts, run the system

setup program (sometimes called BIOS or CMOS setup). This is usu-
ally done by pressing a special key, such as DELETE, ESC, or F1 dur-
ing the startup process. See your system documentation for details
about your particular system.

2. Within the system setup program, instruct the system to auto detect

your new drive.

3. Save the settings and exit the setup program.
When your computer restarts, it should recognize your new drive. If your
system still doesn’t recognize your new drive, see the troubleshooting sec-
tion on the back of this sheet. 

Jumper block

SATA interface connector

SATA power connector

3.0 Gbits per second operation

1.5 Gbits per second operation (default)

Breather Hole

Do not cover

or seal.

Each drive requires its own cable.

Note:

Attach the SATA interface
cable to the motherboard
or SATA host adapter

power

adapter

cable

Note: The drive is inverted in this
illustration to show the connectors.

SATA

Interface cable

Jumper block

(for troubleshooting)

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