S T 9 3 8 5 A G M A R A T H O N SEAGATE
NO MORE PRODUCED Native| Translation
------+-----+-----+-----
Form 2.5"/SUPERSLIMLINE Cylinders | 934| |
Capacity form/unform 340/ MB Heads | 14| |
Seek time / track 16.0/ 5.0 ms Sector/track | 51| |
Controller IDE / ATA2 FAST/ENHA Precompensation
Cache/Buffer 120 KB ADAPTIVE Landing Zone
Data transfer rate 3.000 MB/S int Bytes/Sector 512
13.300 MB/S ext DMA
Recording method RLL 1/7 operating | non-operating
-------------+--------------
Supply voltage 5 V Temperature *C 5 55 | -40 70
Power: sleep 0.3 W Humidity % |
standby 0.3 W Altitude km |
idle 1.0 W Shock g 100 | 200
seek 1.9 W Rotation RPM 3980
read/write 2.0 W Acoustic dBA
spin-up W ECC Bit
MTBF h 300000
Warranty Month 24
Lift/Lock/Park YES Certificates
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L A Y O U T
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SEAGATE ST9655/9550/9385AG INSTALLATION GUIDE 36286-001, REV.A 10/94
+---------------------------------------------------------+
| |XX
| |XXI
| |XXN
| |XXT
| |XXE
| |XXR
| |XXF
| |XXA
| |XXC
| |XXE
| |XX
| |XX
| |XX
| | 1
| |XXJumper
+---------------------------------------------------------+
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J U M P E R S
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SEAGATE ST9655/9550/9385AG INSTALLATION GUIDE 36286-001, REV.A 10/94
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 ST9655 family drive for cable select, install both
master/slave jumpers.
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I N S T A L L
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SEAGATE ST9655/9550/9385AG INSTALLATION GUIDE 36286-001, REV.A 10/94
Notes On Installation
=====================
Mounting the drive
------------------
Mount the drive securely in the computer using M3X0.5 metric screws
in the four bottom mounting holes or the four side mounting holes.
You can mount the drive in any orientation. Be careful not to strain
or crimp the interface/power cable.
Caution
To prevent damage to the drive:
- Be careful not to bend the drive connector pins, especially when
plugging the drive into a fixed connector.
- Use mounting screws of the correct size and length.
- Gently tighten the mounting screws_do not apply more than 3
inch-pounds of torque.
- Do not insert mounting screws more than 0.15 inch.
NOTE
This drive meets industry-standard MCC mounting specifications. When
installing this drive in a fixed-mounting application, you must use
MCC-compatible connectors and mounting hardware. If the mounting
holes in your computer do not line up with the mounting holes on the
drive, your computer may not be MCC-compatible.
Attaching cables
----------------
This drive is designed for a host computer that supplies interface
signals and +5V power through a single 44-pin connector and cable.
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F E A T U R E S
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SEAGATE ST9655/9550/9385AG INSTALLATION GUIDE 36286-001, REV.A 10/94
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 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. The table below
lists cylinder, head and sector information for the ST9655 family
drives.
+-----------------------+----------+----------+----------+
|Drive specification |ST9655AG |ST9550AG |ST9385AG |
+-----------------------+----------+----------+----------+
|No. cylinders | 1,016 | 942 | 934 |
+-----------------------+----------+----------+----------+
|No. read/write heads | 16 | 16 | 14 |
+-----------------------+----------+----------+----------+
|No. sectors per track | 63 | 59 | 51 |
+-----------------------+----------+----------+----------+
|Total no. sectors | 1,024,128| 889,248| 666,876 |
+-----------------------+----------+----------+----------+
|Bytes per sector | 512 | 512 | 512 |
+-----------------------+----------+----------+----------+
|Capacity (Mbytes) | | | |
| BIOS calculated | 499 | 434 | 325 |
| Usable | 524 | 455 | 341 |
+-----------------------+----------+----------+----------+
Formatting and Partitioning the drive
-------------------------------------
CAUTION
Formatting or partitioning a drive that contains data destroys that
data. Make sure all data has been safely backed up before re-
partitioning or reformatting a drive that contains data. 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 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.
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.
Compatibility Notes
-------------------
The ST9655 family drives conform to the ATA interface specifications.
The host system BIOS must provide support for the ATA interface
command set. For a detailed description of the ATA commands
implemented by these drives, see the Seagate ST9655 Family Product
Manual and the Seagate ATA Interface Reference Manual.
- In accordance with ATA specifications, the system BIOS must reset
any emulation/translation parameters after a hard reset.
- In some configurations, a ST9655 family drive may supply up to
16 bytes of error correction code (ECC) with the Read Long and
Write Long commands. Depending on the drive type, your system
BIOS may look for 4 bytes of ECC. If your system BIOS expects 4
bytes of ECC and the drive supplies a different number of bytes,
some drive diagnostic programs may fail,typically resulting in
timeout errors. Consult your computer documentation or call your
computer dealer or manufacturer for information on configuring
your computer to receive more than 4 bytes of ECC.
- Some older drive diagnostic programs may incorrectly report an
ECC detection failure when analyzing an ST9655 family drive. This
occurs because the drive hardware corrects the data automatically,
avoiding the error rather than reporting it. Such a report does
not indicate a drive malfunction.