M A R A T H O N S L 4 2 0 SEAGATE
Native| Translation
------+-----+-----+-----
Form 2.5"/SUPERSLIMLINE Cylinders | 988| |
Capacity form/unform 420/ MB Heads | 16| |
Seek time / track 16.0/ 6.0 ms Sector/track | 52| |
Controller IDE / ATA2 FAST/ENHA Precompensation
Cache/Buffer 120 KB Landing Zone
Data transfer rate 5.000 MB/S int Bytes/Sector 512
16.600 MB/S ext
Recording method PRML operating | non-operating
-------------+--------------
Supply voltage 5 V Temperature *C 5 55 | -40 70
Power: sleep 0.2 W Humidity % |
standby 0.3 W Altitude km |
idle 0.9 W Shock g 100 | 300
seek 1.9 W Rotation RPM 4500
read/write 2.0 W Acoustic dBA
spin-up W ECC Bit
MTBF h 300000
Warranty Month 36
Lift/Lock/Park YES Certificates
**********************************************************************
L A Y O U T
**********************************************************************
SEAGATE MARATHON 420SL JUMPER SETTINGS
+--+ +Jumper--------Interface-----------------------------+ +--+
| +--+Bo oD o o o o o o o o o o o o o o o o o o o o o +--+ |
| | |Ao oC 1 o o o o o o o o o o o o o o o o o o o o o | | |
| | +----------------------------------------------------+ | |
| +----------------------------------------------------------+ |
+----------------------------------------------------------------+
**********************************************************************
J U M P E R S
**********************************************************************
SEAGATE ST9420AG MARATHON 420SL JUMPER SETTINGS
Jumper Setting
==============
+--+ +Jumper--------Interface-----------------------------+ +--+
| +--+Bo oD o o o o o o o o o o o o o o o o o o o o o +--+ |
| | |Ao oC 1 o o o o o o o o o o o o o o o o o o o o o | | |
| | +--+-------------------------------------------------+ | |
| +-----+----------------------------------------------------+ |
+--------+-------------------------------------------------------+
|
o o Drive is master; slave may be detected using DASP-
o o signal
o X Drive is master; Seagate slave drive present
o X
X o Drive is slave; Seagate master drive present
X o
X X Use CSEL pin grounding to differate master from slave
X X
Install master/slave jumpers
----------------------------
In a two-drive system, you need to designate one drive as the master,
or drive 0, and the other drive as the slave, or drive 1. In a one-
drive system, configure the drive as a master (no jumpers installed).
Alternatively, you can configure the drive as a master or slave
using the cable select option. To use this option, the host system
and both drives must support cable select. Cable selection requires
a special daisy-chain cable that grounds pin 28 (CSEL) on one of its
two drive connectors. If you attach the drive to the grounded CSEL
connector, it becomes a master. If you attach the drive to the
ungrounded CSEL connector, it becomes a slave.
To configure an ST9420 drive for cable select, install both master/
slave jumpers.
Master/slave configuration
--------------------------
You must establish a master/slave relationship between two drives
attached to a single AT bus. You can configure a drive to become a
master or slave by setting the master/slave jumpers.
Alternatively, you can configure the drive as a master or slave using
the cable select option. This requires a specialized daisy-chain
cable that grounds pin 28 (CSEL) on one of its two drive connectors.
If you attach the drive to the grounded CSEL connector, it becomes a
master. If you attach the drive to the ungrounded CSEL connector, it
becomes a slave. To use this option, the host system and both drives
must support cable select and both drives must be configured for
cable select. To configure a Marathon 420sl for cable select, install
both master/slave jumpers.
For the host to recognize the slave drive using the DASP- signal, the
slave drive must assert the DASP- signal at power up, and the master
drive must monitor DASP- at power up.
Remote LED configuration
------------------------
The drive indicates activity to the host through the DASP- line (pin
39) on the ATA interface. This line may be connected to a drive
status indicator driving an LED at 5V. The line has a 30 mA nominal
current limit. To avoid potential damage to the drive, the host
should include a resistor in the line to the LED. This resistor
should have a minimum resistance of 470 ohms (1,000 to 3,000 ohms
recommended).
**********************************************************************
I N S T A L L
**********************************************************************
SEAGATE MARATHON 420SL JUMPER SETTINGS
Notes on installation
=====================
Installation direction
----------------------
horizontally vertically
+-----------------+ +--+ +--+
| | | +-----+ +-----+ |
| | | | | | | |
+-+-----------------+-+ | | | | | |
+---------------------+ | | | | | |
| | | | | |
| | | | | |
+---------------------+ | +-----+ +-----+ |
+-+-----------------+-+ +--+ +--+
| |
| |
+-----------------+
The drive will operate in all axis (6 directions).
Shock
-----
All shock specifications assume that the drive is mounted in an
approved orientation with the input levels at the drive mounting
screws. The nonoperating specifications assume that the read/write
heads are positioned in the shipping zone.
Note. At power-down, the read/write heads automatically move to the
shipping zone. The head and slider assembly park inside of the
maximum data cylinder. When power is applied, the heads recalibrate
to Track 0.
Operating shock
---------------
The ST9420A can withstand a maximum operating shock of 10 Gs
without nonrecoverable data errors (based on half-sine shock pulses
of 2 or 11 msec). The optional ST9420AG version of the Marathon 420sl
incorporates SafeRite shock protection and can withstand a maximum
operating shock of 100 Gs without nonrecoverable data errors (based
on half-sine shock pulses of 2 or 11 msec).
Nonoperating shock
------------------
The nonoperating shock level that the drive can experience without
incurring physical damage or degradation in performance when
sub-sequently put into operation is 300 Gs (based on half-sine shock
pulses of 2 msec duration) or 150 Gs (based on halfsine shock pulses
of 11 msec duration). Shock pulses are defined by MIL-STD-202 F with
the amplitude tolerance controlled to 5 %.
Vibration
---------
All vibration specifications assume that the drive is mounted in an
approved orientation with the input levels at the drive mounting
screws.
The nonoperating specifications assume that the read/write heads are
positioned in the shipping zone.
Handling and static-discharge precautions
-----------------------------------------
After unpacking, and before installation, the drive may be exposed to
potential handling and ESD hazards. It is mandatory that you observe
standard static-discharge precautions. A grounded wrist-strap is
preferred.
Handle the drive only by the sides of the head/disc assembly. Avoid
contact with the printed circuit board, all electronic components and
the interface connector. Do not apply pressure to the top cover.
Always rest the drive on a padded antistatic surface until you mount
it in the host system.
ATA interface connector
-----------------------
The drive connector is a 44-conductor connector with 2 rows of 22
male pins on 0.079-inch (2-mm) centers (see Figure 4). The mating
cable connector is a 44-conductor, nonshielded connector with 2 rows
of 22 female contacts on 0.079-inch (2-mm) centers. The connectors
should provide strain relief and should be keyed with a plug in place
of pin 20.
These drives are designed to support the industry-standard MCC
direct-mounting specifications. When installing these drives in fixed
mounting applications, use only MCC-compatible connectors such as
Molex part number 87368-442 x. For applications involving flexible
cables or printed circuit cables (PCCs), use Molex part number
87259-4413 or equivalent to connect the drive to the system. Select a
connector that provides adequate clearance for the master/slave
configuration jumpers if the application requires the use of such
jumpers. The ATA interface cable should be no more than 18 inches
long.
Note. The I/O connector pins may extend up to 0.010 inches beyond
the edge of the head/disc assembly.
**********************************************************************
F E A T U R E S
**********************************************************************
SEAGATE MARATHON 420SL JUMPER SETTINGS
Read before you begin
---------------------
Application. This drive uses the ATA interface and is designed for
IBM AT and compatible personal computers. It is intended for use with
UL-listed computers or similar products.
Warning. Turn off the computer (and remove the battery if you have a
notebook or laptop computer) before you open the case or
touch any internal components.
Caution. Special training or tools may be needed to service laptop
and notebook computers. In some cases, opening the case
may void your warranty.
Static discharge
Observe the following precautions:
- Before handling any components, put on a grounded wrist strap.
- Use antistatic padding on all work surfaces.
- Avoid static-inducing carpeted areas.
- Keep the drive in its static-shielded bag until you are ready to
complete the installation. Do not attach any cables to the drive
while it is in its static-shielded bag.
- Handle the drive by its edges or frame.
- Do not touch the I/O connector pins or the circuit board.
Drive handling
--------------
The drive is extremely fragile_handle it with care.
Do not attach labels to any part of the drive.
Inspection
----------
After you are familiar with the handling precautions listed above,
inspect the drive. If it appears to be damaged, call your distributor
or dealer immediately.
Maintenance and repair
----------------------
Seagate drives do not require maintenance.
The head/disc assembly is sealed; if you break the seal, you void the
warranty. Seagate customer service centers are the only facilities
authorized to repair Seagate drives. Seagate does not sanction any
third-party repair facilities.
Configuring the drive
---------------------
1. Put on a grounded wrist strap. Wear the grounded wrist strap
throughout the installation procedure.
2. Install master/slave jumpers. In a two-drive system, you need to
designate one drive as the master, or drive 0, and the other drive
as the slave, or drive 1.
Configuring your computer
-------------------------
Before your computer can recognize a new drive, you must enter basic
information about the drive into the computer's longterm memory
(usually a battery-powered CMOS chip). The computer's basic
input/output system (BIOS) uses this information to control the flow
of data to and from the drive.
Note. Some newer computers can automatically determine your drive
type and configure themselves appropriately at startup. Read
your system manual to determine whether this applies to your
computer. If so, then skip ahead to "Formatting and
partitioning the drive. If your computer cannot automatically
determine your drive type, you must run a system setup program
to specify the number of cylinders, heads and sectors for each
drive in your system. This procedure is described on the
following page. The table below lists cylinder, head and sector
information for the Marathon 420sl.
No. cylinders 988
No. read/write heads 16
No. sectors per track 52
Total no. sectors 822,016
Bytes per sector 512
Capacity (Mbytes): BIOS calculated 400 Usable 420
To enter these drive specifications into your system BIOS, follow
these steps:
1. Turn on your computer.
2. Run the system setup program. This program configures the system
BIOS to recognize your drive. In some computers you run the system
setup program by pressing special keys while the computer is
booting up. In other computers, you can run the program from the
DOS prompt. See your system manual for more information.
3. Enter your drive specifications. Within the system setup program,
there are three possible ways that you can enter your drive's
specifications. These are listed below in order of increasing
complexity.
- Select a predefined drive type. Most system setup programs
provide a long list of predefined drive types. Select a drive
type with specifications that match those of your drive.
- Specify a custom or user defined drive type. If the system setup
program doesn't list a predefined drive type that matches your
drive specifications, you may be able to define a custom or
user defined drive type. You can then enter your drive
specifications.
When you enter drive specifications for a custom or user defined
drive type, the setup program should display a drive capacity
less than or equal to the BIOS calculated capacity.
This value is slightly lower than the usable drive capacity.
- Allow your drive to emulate or translate one of the predefined
drive types. If none of the predefined drive types exactly
matches your drive, and your system setup program does not allow
you to specify a custom drive type, your drive may be able to
emulate one of the predefined drive types. Select a predefined
drive type that has a capacity as close as possible to, but not
greater than, the BIOS calculated capacity of your drive.
Note. If you emulate a drive type with a lower storage capacity than
your drive, you limit the effective capacity of your drive. For
example, a 350-Mbyte drive emulating a 300-Mbyte drive will be
limited to 300 Mbytes of storage capacity.
If you are not sure which drive type to select, try running the
FINDTYPE.EXE utility program. This program is available from
Seagate's Technical Support services (on the SeaBOARD computer
bulletin board). FindType compares your drive's geometry with
all geometries supported by your computer's BIOS. FindType can
also determine whether an exact match exists between the drive
geometry and the system BIOS. If there is no match, FindType
selects the closest drive type supported by your computer's
BIOS.
The system setup program may request information on the drive's
write precomp or landing zone. However, you do not need to
enter any values, since your Seagate drive does not use these
parameters.
Caution. Write down the drive type that you have selected and any
drive specifications that you have entered. Keep this
information in a safe place. You will have to reenter this
data if your CMOS battery fails.
Formatting and partitioning the drive
-------------------------------------
Caution. Formatting or partitioning a drive that contains data may
destroy all data on the drive. Before repartitioning or reformatting
a drive that contains data, make sure all data on that drive has been
safely backed up. Seagate Technology assumes no liability for lost
data.
Low-level formatting
--------------------
Seagate ATA Interface drives are low-level formatted at the factory
and do not require additional low-level formatting before use.
Note. If you are installing only a single drive in your computer, you
can use the DOS program SETUP.EXE (supplied with MS-DOS 5.0
and above) to partition and format the drive. See your DOS
manual for details. After you successfully run SETUP.EXE, your
drive will be ready to use, and you can skip the partitioning
and formatting steps below.
Partitioning
------------
The partitioning process subdivides a single disc drive into
partitions that behave as separate logical drives (labeled C, D, E,
etc.). You can also set up the entire disc as a single partition.
1. Restart your computer. Boot up the computer using a diskette that
contains DOS system files.
2. Run the FDISK program. Insert a DOS program diskette containing
the FDISK program into your diskette drive.
At the DOS prompt, type fdisk and press
ENTER. Then follow the directions on the
screen to create one or more partitions.
See your DOS manual for details. If you are
partitioning a drive that will be used to
boot the computer, make sure that the
primary partition is marked active.
High-level formatting
---------------------
High-level formatting verifies the information written by the
low-level format and creates file allocation tables used to catalog
and access files.
Caution. Make sure that you know the correct drive letter for the
partition you wish to format. Formatting a drive that
contains data may destroy the data on that drive.
1. Run the FORMAT program. Insert a DOS program diskette containing
the FORMAT program into your diskette
drive. At the DOS prompt, type format,
followed by the drive letter for the first
drive partition you want to format (for
example, format C:). Then, press ENTER.
Repeat this procedure to format each of
the new drive partitions you have created.
Consult your DOS manual for FORMAT command
options.
Note. If you are formatting the drive partition that will be used to
boot your computer (the "C" drive), copy the DOS system files
to this drive. To do this, type /s after the format command
(for example, format C: /s)
2. Verify the drive capacity. After high-level formatting a drive,
you can verify the usable drive
capacity by running the DOS CHKDSK
utility program.
Storing and shipping your drive
-------------------------------
Keep your original box and packing materials for storing or shipping
your drive. The box has a Seagate Approved Package label. Shipping a
drive in an unapproved container voids the warranty. Call your
authorized Seagate distributor to purchase additional boxes.
**********************************************************************
G E N E R A L
**********************************************************************
SEAGATE SUPPORT SERVICES
Seagate Technology
------------------
Technical Support Services
If you need assistance installing your drive, consult your dealer.
Dealers are familiar with their unique system configurations and can
help you with system conflicts and other technical issues. If you
need additional assistance with your Seagate(r) drive or other
Seagate products, use one of the Seagate technical support services
listed below.
SeaFONE at 1-800-SEAGATE (1-800-732-4283)
Seagate's 800 number allows toll-free access to automated self-help
services, providing answers to commonly asked questions,
troubleshooting tips and specifications for disc drives and tape
drives. This service is available 24 hours daily and requires a
touch-tone phone. If you need to speak to a technical support
engineer, dial this number and listen to the options for technical
support. (International callers can also reach this automated
self-help service by dialing 408-456-4496).
Seagate Technology online services
Using a modem, you can obtain troubleshooting tips, free utility
programs, drive specifications and jumper settings for Seagate's
entire product line. You can also download software for installing
and analyzing your drive.
SeaNET
You can obtain technical information on Seagate drives, Seagate
software and much more over the Internet from Seagate's World Wide
Web home page (http://www.seagate.com) or Seagate's ftp server
(ftp://ftp.seagate.com).
You may also send E-mail with your questions to DiscSupport@
Seagate.com or TapeSupport@Seagate.com.
SeaBOARD
SeaBOARD is a computer bulletin board system (BBS) that contains
information about Seagate's disc and tape drive products and is
available 24 hours daily. Set your communications software to eight
data bits, no parity and one stop bit (8-N-1). SeaBOARD phone numbers
are listed in the following table.
BBS Location Modem number
United States Disc: 408-434-1080; Tape: 408-456-4415
England 44-1628-478011
France 33 1-48 25 35 95
Germany 49-89-140-9331
Singapore 65-292-6973
Thailand 662-531-8111
Australia 61-2-9756-2359
Taiwan 886-2-719-6075
Seagate CompuServe forum
Online technical support for Seagate products is available on
CompuServe. To access our technical support forum, type go seagate.
This forum provides information similar to that found on SeaBOARD.
In addition, you can type questions or browse through previous
questions and answers on the forum messages.
Seagate Technology FAX services
SeaFAX
You can use a touch-tone telephone to access Seagate's automated FAX
system to receive technical support information by return FAX. This
service is available 24 hours daily.
Location Telephone number
United States 1-800-SEAGATE or 408-456-4496
England 44-1628-894084
Australia 61-2-9756-5170
Seagate technical support FAX
You can FAX questions or comments to technical support specialists 24
hours daily. Responses are sent during business hours.
Location FAX number
United States 408-944-9120
England 44-1628-890660
France 33 1-46 04 42 50
Germany 49-89-1430-5100
Australia 61-2-9725-4052
Singapore 65-293-4722
Hong Kong 852-2368 7173
Taiwan 886-2-715-2923
Korea 82-2-556-7294/4251
Seagate technical support
You can talk to a technical support specialist during business hours
Monday through Friday for one-on-one technical help. Before calling,
note your system configuration and drive model number (STxxxx). There
are several technical support phone numbers available for various
Seagate products.
Location Telephone number
United States Please dial 1-800-SEAGATE for the specific product
telephone number.
(6:00 A.M. to 11:15 A.M., 12:30 P.M. to 5:00 P.M.,
Pacific time, M-F)
England 44-1628-894083 (10:00 A.M. to 1:00 P.M., 2:00 P.M. to
5:00 P.M., M-F)
France 33 1-41 86 10 86 (9:30 A.M. to 12:30 P.M., 2:00
P.M. to 5:00 P.M., M-F)
Germany Disc: 49-89-140-9332; (9:30 A.M. to 12:30 P.M., 2:00
P.M. to 4:00 P.M., M-F)
Tape: 49-89-140-9333
Australia 61-2-9725-3366 (9:00 A.M. to 5:00 P.M., M-F)
Singapore 65-290-3998 (9:00 A.M. to 12:00 P.M., 2:00
P.M. to 5:00 P.M., M-F)
Hong Kong 852-2368 9918
Taiwan 886-2-514-2237
Korea 82-2-556-8241
SeaTDD 408-944-9121
Using a telecommunications device for the deaf (TDD), you can send
questions or comments 24 hours daily and exchange messages with a
technical support specialist between 6:00 A.M. to 11:15 A.M. and
12:30 P.M. to 5:00 P.M. (Pacific time) Monday through Friday.
Customer Service Centers
Seagate direct OEM, Distribution, System Integrator and Retail
customers should contact your Seagate Service Representative for
warranty information. Other customers contact your place of
purchase. Seagate offers comprehensive customer support for all
Seagate drives. Seagate customer service centers are the only
facilities authorized to service Seagate drives. These services are
available worldwide.
Location Telephone number FAX number
United States 1-800-468-3472; 405-949-6740
Other Americas
(Canada & Brazil) 405-949-6706; 405-949-6738
Mexico 525-546-6965; 525-546-4888
Europe, Middle
East & Africa 31-2065-43300; 31-2065-34320
Asia Pacific &
Australia 65-485-3595; 65-485-4980
Japan 81-3-5462-2904; 81-3-3462-2979
Seagate, Seagate Technology and the Seagate logo are registered
trademarks of Seagate Technology, Inc. SeaFAX, SeaFONE, SeaBOARD,
SeaTDD, SeaNET, Medalist and DiscWizard are either trademarks or
registered trademarks of Seagate Technology, Inc. or one of its
subsidiaries. All other trademarks or registered trademarks are the
property of their respective owners.