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Marathon 420sl
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(ST9420A, ST9420AG)
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AT Interface Drives
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Installation Guide
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Contents Read before you begin... . . . . . . . . . . . . . . . . . . 1 Configuring the drive . . . . . . . . . . . . . . . . . . . . 2 Attaching cables . . . . . . . . . . . . . . . . . . . . . . . 2 Mounting the drive . . . . . . . . . . . . . . . . . . . . . 4 Configuring your computer . . . . . . . . . . . . . . . . . 5 Formatting and partitioning the drive . . . . . . . . . . . 8 Installa
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Marathon 420sl Installation Guide, August 1995 1 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.
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2 Marathon 420sl Installation Guide, August 1995 only facilities authorized to repair Seagate drives. Seagate does not sanction any third-party repair facilities. Warranty. See your authorized Seagate distributor or dealer. 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, o
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Marathon 420sl Installation Guide, August 1995 3 Master/slave configuration jumpers Pin 1 Pin 20 removed Circuit board for keying B D A C Drive is master; slave may be detected using DASP– signal Drive is master; Seagate slave drive present Drive is slave; Seagate master drive present Use CSEL pin grounding to differentiate master from slave Figure 1. ATA interface connector and master/slave configuration jumpers
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4 Marathon 420sl Installation Guide, August 1995 1. Turn off the computer and remove the battery. 2. Put on a grounded wrist strap. 3. Open your computer case. See your system manual for instructions. Caution. Opening the case may void your computer’s warranty. 4. Connect the 44-pin interface/power cable. Match pin 1 of the cable to pin 1 of the interface connectors on the drive and on the computer. Pin 1 is usually denoted by a stripe along one edge of the cable. The location of pin 1 on the d
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Marathon 420sl Installation Guide, August 1995 5 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. Configuring your computer Before your computer can recognize a new drive, you must enter basic information about the drive into the computer’s long-term memory (usually a battery-powered CMOS chip). The com- puter’s basic input/output system
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6 Marathon 420sl Installation Guide, August 1995 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 specifi
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Marathon 420sl Installation Guide, August 1995 7 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 (as shown in the table on page 5). 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 35
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8 Marathon 420sl Installation Guide, August 1995 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 form
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Marathon 420sl Installation Guide, August 1995 9 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 dri
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10 Marathon 420sl Installation Guide, August 1995 Installation troubleshooting Before calling Seagate Technical Support, please read and con- sider all the possibilities discussed on the following pages. The suggestions presented here address the vast majority of instal- lation problems. General troubleshooting procedures The following is a list of general troubleshooting procedures. Solu- tions for specific problems are provided on subsequent pages. Warning. Always turn off the computer before
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Marathon 420sl Installation Guide, August 1995 11 ing screws. Make sure that full-size (16-bit) cards are not plugged into half-size (8-bit) slots. • Verify the BIOS drive type. Make sure that you entered the correct drive type or translation geometry in the BIOS setup program. The drive capacity and number of sectors specified in the BIOS must not exceed the specifications shown in the table on page 5. If the drive type is incorrect, you must rerun the system setup program. Then partition and
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12 Marathon 420sl Installation Guide, August 1995 damage to disc partitions. Also, before installing any new software, scan the installation diskettes for viruses. Specific Troubleshooting Procedures Methods for resolving specific drive installation problems are listed on the following pages. These methods incorporate many of the general troubleshooting techniques described in the pre- vious section. The screen remains blank when you power up the computer. • Make sure the monitor is plugged in
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Marathon 420sl Installation Guide, August 1995 13 • Try a warm boot. Press CTRL, ALT and DELETE simultaneously to reboot the computer without turning off the power. If a warm boot causes a previously unrecognized drive to become rec- ognized, there may be a timing problem in which the drive fails to become ready before the host completes its power-on self-test. One possible solution is to power up your computer with its processor set at low speed (see your computer manual for details on setting
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14 Marathon 420sl Installation Guide, August 1995 • Check for memory conflicts. • Check for viruses. During the FDISK program, you get an error message warn- ing of an attempt to write to track 0 or to the boot sector; the message may also suggest that a virus is present. • This occurs in systems having a virus-protection scheme that does not allow programs to modify the boot sector of the disc. See your system manual for details. To avoid the problem, run the system setup program and turn off
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Marathon 420sl Installation Guide, August 1995 15 • Check the power supply. • Reboot the computer and make sure the drive spins up. • Verify the BIOS drive type. • Check for I/O address conflicts. During high-level formatting, the drive keeps finding hard errors and reporting the following message: “Attempting to recover allocation units. . .” • This is normal with some versions of DOS. The drive will format normally. However, after formatting the drive, you may want to run a third-party surfac
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16 Marathon 420sl Installation Guide, August 1995 • Check for viruses. During operation, the system error message, “Drive not Ready,” appears. • Check all cables. • Check the power supply. • Reboot the computer and make sure the drive spins up.
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Marathon 420sl Installation Guide, August 1995 17 Compatibility notes • The Marathon 420sl conforms to the ATA interface specifica- tions. The host system BIOS must provide support for the ATA interface command set. For a detailed description of the ATA commands implemented by this drive, see the Seagate Mara- thon 420sl Product Manual and the Draft Proposed ATA-2 Standard. • In accordance with ATA specifications, the system BIOS must reset any emulation/translation parameters after a hard rese
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18 Marathon 420sl Installation Guide, August 1995 Technical support services If you need assistance installing your drive, consult your dealer. Your dealer is familiar with system configurations and can help you with system conflicts and other technical issues. If you need additional assistance with your Seagate drive or other Seagate products, you can call SeaBOARD , SeaFAX , Sea- gate Technical Support FAX, SeaFONE , or SeaTDD . Sea- gate technical support is also available on CompuServe
