• Master or single-drive: The drive is shipped configured for a master
or a single-drive with a jumper set on pins 7 and 8.
U10 Family Installation Guide
ST320423A, ST315323A, ST310212A
• Drive is slave: To configure the drive as a slave, or second drive on
the cable, remove all the jumpers.
• Master with non-ATA compatible slave: Use this setting if the slave
drive is not recognized. Configure the master drive with a jumper set on
pins 5 and 6 and pins 7 and 8 to enable this option.
Publication Number:SG35346-001, Rev.A
• Cable-select option: Computers that use cable-select determine the
master and slave drives by selecting or deselecting pin 28, CSEL, on
the interface bus. To enable cable select, set a jumper on pins 5 and 6.
The Easiest Way to Install Your Drive
DiscWizard is Seagate’s exclusive Windows program that is included with
your drive for easy drive installation. You can use this software if you
already have a bootable hard drive in your computer and you are running
Windows 98 or Windows 95.
Attaching Cables and Mounting the Drive
1. Attach one end of the drive interface cable to the interface connector
on your computer’s motherboard (see your computer manual for
connector locations).
Run DiscWizard before installing your drive for customized step-by-step
instructions for your system.
To run DiscWizard:
• Select Run from the Windows Start menu and type x:\setup, where x is
the drive letter of your diskette or CD-ROM.
Caution. Align pin 1 on the motherboard connector with pin 1 on
!
your drive connector. Pin 1 is marked by a stripe on one side of the cable.
If you cannot run DiscWizard, follow the instructions on this installation
Note. If you are using a 40-pin 80-conductor
sheet to install and configure your drive.
cable, attach the blue connector to the
motherboard, the black connector to the
master drive, and the grey connector
to the slave.
Master
Pin 1
What You Need
Computer
Motherboard
Slave
• Phillips screwdriver and four 6-32 UNC drive mounting screws
• A standard 40-pin ATA interface cable, or an 80-conductor cable to run
Ultra ATA 66 (max length: 18 inches)
• An unused drive power cable for your new drive
2. Attach the interface connector and the power connector to the drive.
Ultra ATA/66 Requirements
The drive can support transfer rates up to 66 Mbytes per second
(UDMA 4) in Ultra ATA/66 mode. For your drive to run in this mode, you
need the following:
Power
connector
Interface
connector
• A computer that supports UDMA modes 3 and 4
Pin 1
• A 40-pin 80-conductor cable (available from your dealer)
• A software utility to confirm and activate Ultra ATA/66. Seagate® provides
a utility called UATA66.exe that is included on your CD, or you can
Note. You can mount the drive in any orientation. Usually it is mounted
with the circuit board down.
• The Windows 98 operating system
3. Secure the drive in the computer using four 6-32 UNC mounting
screws in either the side-mounting or bottom-mounting holes. Insert
the screws no more than 0.20 inch (5.08 mm) into the bottom-mounting
holes and no more than 0.14 inch (3.55 mm) into the side-mounting holes.
Handling Precautions
Disc drives are extremely fragile. Do not drop or jar the drive.
Keep the drive in the protective SeaShell container until you are
ready to install it. This will minimize handling damage.
Caution. Do not overtighten the screws or use metric screws. This
may damage the drive.
!
The drive is enclosed in a black, flexible cover called a SeaShield®.
Do not remove this permanent cover—it protects the drive from
electrostatic discharge (ESD) and minor impact damage.
Configuring the BIOS
For your computer to recognize your new drive, configure your
computer’s BIOS as follows:
Protect your drive from static discharge by wearing a grounded wrist
strap throughout the installation process.
1. Run the system setup program.
Always handle the drive by the edges or frame.
2. Enable LBA mode and UDMA mode, if available.
Do not apply pressure or attach labels to the circuit board or the
top of the drive.
3. Select the auto-detect option. If this is not available, select “User-
defined drive type” and enter the CHS (cylinder, head, sectors)
parameters for your drive from the table listed below. The CHS
addressing supports capacities up to 8.4 Gbytes only. To access the
full capacity of the drive, use LBA mode.
Setting the Jumpers
Refer to the jumper settings below to configure the drive for your system.
4. Save and exit the system setup program.
Options jumper block (J8)
Master or single drive
Drive is slave
BIOS Settings
CHS Mode
LBA Mode
Master with a non-ATA-
compatible slave
Drive Model
ST320423A
ST315323A
ST310212A
Cylinders Heads Sectors Total Sectors*
16,383
16,383
16,383
16
16
16
63
63
63
40,011,300
30,008,475
20,005,650
Cable select
7
8
5
6
3
4
1
2
*One sector equals 512 bytes.
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