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ST3390N, ST3655N
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SCSI Interface Drive
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Installation Guide
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Contents Read before you begin . . . . . . . . . . . . . . . . . . 1 Configuring the drive . . . . . . . . . . . . . . . . . . . . 2 Attaching cables . . . . . . . . . . . . . . . . . . . . . . 5 Mounting the drive . . . . . . . . . . . . . . . . . . . . . 8 CMOS setup for AT systems . . . . . . . . . . . . . . . . 10 Physical geometry for non-DOS operating systems . . . 10 Low-level formatting . . .
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ST3390N, ST3655N Installation Guide, Rev. A 1 Read before you begin... Application. Your drive is designed for IBM AT and compatible personal computers, Sun, Macintosh and other SCSI systems. Turn off the system power before attempting any installation. Static discharge. Observe the following precautions: • 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 b
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2 ST3390N, ST3655N Installation Guide, Rev. A Radio and television interference. This product complies with Class B limits for radio noise emissions from computer equipment as set out in the radio interference regulations of the Canadian Department of Communications. Le présent appareil numérique n′émet pas de bruits radioélectriques depassant les limites applicable aux appareils numériques de Classe B prescrites dans le règlement sur le brouillage radioélectrique edicté par le Ministère des Com
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ST3390N, ST3655N Installation Guide, Rev. A 3 SCSI ID, install jumpers on the SCSI ID jumper block as shown in Figure 1 on page 6. 2. Installing or removing terminating resistors. SCSI I/O termination consists of three resistor packs, called termina- tors, that plug into sockets on the printed circuit board. The terminating resistors are shown in Figure 1. If you are installing only one drive, leave the terminators installed. If you are installing multiple drives, remove the terminators from all
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4 ST3390N, ST3655N Installation Guide, Rev. A 4. Installing jumpers on the active/passive termination jumper block. If you removed the terminating resistors from the drive according to the instructions in step 2, skip this step. If you are either: • using Fast SCSI transfer rates, or • not using Fast SCSI transfer rates, and both ends of the I/O cable are terminated by resistors of equal value, use active termination by installing a jumper on pins 1 and 2 of the active/passive termination jumpe
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ST3390N, ST3655N Installation Guide, Rev. A 5 Attaching cables Refer to Figure 1 on page 6 and Figure 2 on page 7 for the locations of the connectors and jumper blocks. 1. Turn off the system power. 2. Put on a grounded wrist strap. 3. Connecting a remote LED. Remote LED pins are located on two separate jumper blocks: the options jumper block and the user-configuration jumper block. Attach a two-pin remote LED connector to either jumper block, as follows: • User-configuration jumper block: pins
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6 ST3390N, ST3655N Installation Guide, Rev. A Terminating resistor packs (pin 1) J4. Interface connector (pin 1) J5. SCSI ID jumper block J9. Active/passive termination jumper block Ground 2 4 6 Circuit 5 3 1 MSB LSB Circuit board board Signal 1 3 5 6 4 2 SCSI ID = 0 +2.85V to 110 ohms SCSI ID = 1 Power and ground to 220/330 ohms SCSI ID = 2 SCSI ID = 3 SCSI ID = 4 J6. Terminator power source jumper block SCSI ID = 5 3 1 Circuit 4 2 board SCSI ID = 6 From S
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ST3390N, ST3655N Installation Guide, Rev. A 7 J12. Options jumper block J8. User-configuration jumper block 7 5 3 1 19 17 15 13 11 9 7 5 3 1 Circuit board Circuit board 8 6 4 2 20 18 16 14 12 10 8 6 4 2 Pin Function Pin Function 1 Ground 1–6 Reserved. 2 Parity enable 7 Ext. spindle sync. Clock ground 3 Ground 8 9 Remote LED + 4 Remote start enable 10 Remote LED – 5 Clock ground Reserved. Do not 11–20 6 External spindle sync. use. 7
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8 ST3390N, ST3655N Installation Guide, Rev. A 6. Attaching the 50-pin SCSI interface cable. Attach one end of the cable to the drive interface connector and the other end to the interface connector on the host system motherboard or the host adapter. If you are installing multiple drives, use a daisy-chain cable. Verify that pin 1 of the interface cable is matched to pin 1 of the interface connector on the drive and on the host. Pin 1 is usually denoted by a stripe on the side of the ribbon cabl
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ST3390N, ST3655N Installation Guide, Rev. A 9 Interface connector Power connector Figure 3. Recommended mounting orientations
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10 ST3390N, ST3655N Installation Guide, Rev. A CMOS setup for AT systems When you start up your drive for the first time, enter the CMOS SETUP routine. This routine enables you to define a new drive in the system BIOS. However, because the SCSI host adapter BIOS handles all I/O procedures, you should not attempt to define the drive type in the system BIOS. Instead, set the CMOS, or system setup, to drive type zero, or the no hard drive installed option. Note. If you are installing your drive in
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ST3390N, ST3655N Installation Guide, Rev. A 11 If you choose to low-level format your drive, use the DOS DEBUG utility. The most common DEBUG low-level formatting command is g=c800:5. Verify the BIOS address (c800) and the offset (5) with your host adapter manual. Caution. If you format a drive at any level, you erase all your data. Back up the drive first. Seagate assumes no liability if you destroy your data. Partitioning If you are using a version of DOS before Version 4.0, the capacity of yo
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12 ST3390N, ST3655N Installation Guide, Rev. A To high-level format the drive, perform the following operations: 1. Use the FORMAT utility to high-level format the drive. Refer to your DOS manual for the FORMAT command options. 2. If you are formatting the boot drive, copy the necessary system files to the drive. In Unix, high-level formatting creates the i-node used for file access information. Drive formatting and partitioning are both performed by a single operating system utility. Refer to y
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ST3390N, ST3655N Installation Guide, Rev. A 13 are not crimped or damaged in any way. Keeping extra cables on hand for troubleshooting saves time and frustration. For each ribbon cable, verify that pin 1 of the cable is matched to pin 1 of the connector. Pin 1 is usually denoted by a stripe on the side of the ribbon cable. Caution. Do not randomly reverse-plug the cables. This can damage some systems. When connecting the diskette drive, make sure you use a control cable for a diskette drive and
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14 ST3390N, ST3655N Installation Guide, Rev. A Before continuing, carefully read the preceding checklist. You need to refer to the introductory material to effectively use the following information. The system does not recognize the presence of the drive or system error message, “No Drives Found,” appears. • Check all cables. • Check all cards. • Check the BIOS memory address. • Check the drive type. In AT systems, the drive type must be set to zero. • Check the drive and host adapter terminati
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ST3390N, ST3655N Installation Guide, Rev. A 15 • Turn off the system and wait 20 seconds. Turn it back on and make sure the drive spins up. If the drive does not spin up, check the drive power cable. The screen stays blank when you power up the system. • Make sure the monitor is plugged in and turned on. • Check all cards. Make sure the video card is seated in its slot and secured with mounting screws. • Check all cables. Make sure the video card cables are se- curely attached. • While the syste
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16 ST3390N, ST3655N Installation Guide, Rev. A During the DOS high-level format, the drive keeps retrying hard errors and reporting the following message. “Attempt- ing to recover allocation units. . .” • This is normal with DOS Version 4.0 or later. DOS messages, “Disk Boot Failure,” “Non-System Disk,” or “No ROM Basic - SYSTEM HALTED,” appear. • Open the floppy door. • Check all cables. • Use the same version of DOS throughout your system. • Reinstall the DOS system files using the DOS SYS uti
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ST3390N, ST3655N Installation Guide, Rev. A 17 SeaFONE. 408/438-8222 You can talk to a technical support specialist between 8:00 A.M. and 5:00 P.M. (Pacific time), Monday through Friday. SeaFONE provides recorded technical information on selected Seagate products while you are on hold. You can access the recordings 24 hours daily. Before calling, note your system configuration and drive model number (STxxxx). SeaBOARD Using a modem, you can: • Access documentation, drive specifications and jumpe
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Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, CA 95066, USA Publication Number: 36235-001, Rev. A, Printed in USA
