Seagate ST336752LW/LC, ST318432LW/LC, ST318452LW/LC Troubleshooting, Seagate support services

Drive with

LW Models

J2

HDA up, PCB

Single-ended I/O

down, viewed

from front

HDA

Pin 1

Forces single-ended operation.

Allows the host to select either

J6

single-ended or LVD operation.

Delay Motor Start

Reserved

L

R

E

E A

3

A

2

A

1

A

0

(valid only if the Remote Motor

D

S

Start jumper is not connected).

Reserved

Disable Delay Motor Start.

Remote

11

Motor start delay equal to the

LED

12

CATH

SCSI ID multiplied by 12 seconds.

Shipped with cover installed.

Remote Motor Start

Do not remove.

Disable Remote Motor Start. The

Do not install jumpers

on these four positions.

drive starts according to the Delay

Motor Start option.

J6

Enable Remote Motor Start. The

Drive Front

Pin 1

drive waits for the Start Unit

command from the host before

J2

starting the spindle motor.

Pin 1

Write Protect

Write Protect = Off (enables writing)

Write Protect= On (disables writing)

				Parity Check
DC Power				Enable parity check
Connector				Disable parity check
				No Connection
SCSI I/O
		Pin 1
Connector				Terminator Power
	J2			Termination power to SCSI bus.
LC Models
				Host adapter or other device
No Connection
				provides termination power to
Single-ended I/O				external terminator.
Forces single-ended operation.
Allows the host to select either			(default)
single-ended or LVD operation.
Write Protect option
Write protect = Off (enables writing).			(default)

Write protect = On (disables writing).

Pin 1

(default)

(default)

(default)

(default)

(default)

(default)

7. Format the drive

The drive has been low level formatted at the factory. You do not need to perform another low level format on this drive unless you decide to perform certain diagnostics through the host adapter. If you do decide to perform a low level format, do not abort the format as this is likely to make the drive inoperable. A low level format, with verify turned on, may take two hours.

Protect against power failure or other power interruptions during the format.

a.Turn on DC power to the host system and boot the system from a system floppy, CD, or from a previously installed hard disc drive if there is one.

b.Format the drive.

Caution. Formatting a drive erases all user data. It is not necessary to for- mat a drive that previously has been used to store data, unless your intention is to erase all user data. Seagate® is not responsi- ble for lost user data.

Cheetah X15 36LP disc drives are designed to operate with a variety of operating systems. Please refer to your system or SCSI controller manual for information about formatting and setting up the drive. Some quick desk- top system notes are provided below.

•MicrosoftTM. Set the drive type in CMOS to “Zero,” “None,” or “No hard drive installed.” Use FDISK.EXE and FORMAT.EXE. Systems using Win- dows 98 or later can create one single partition (drive letter) on the drive.

•MacintoshTM. Mac OS 8.6, 9.x and OS X: Use Apple’s Drive Setup utility

to partition and initialize the drive. Mac OS 8.5 or earlier: Use a third-

party drive utility. For more information, refer to: www.apple.com.

Troubleshooting

•	Drive does not spin up. Check cables and all jumper settings. Make
	sure cable pin 1 (edge stripe) matches PCB pin 1.
•	Drive spins, but no LED on/off activity. Check SCSI ID setting. Set the
	ID so that each device on the SCSI chain has its own unique ID. See also
	the next item below. The host I/O controller is usually ID7.

Figure 2. Option select jumpers.

4. Connect the Drive Activity LED (optional)

Connect the Drive Activity LED cable to J6 pins 11 and 12, or connect a drive ID and Drive Activity LED cable to J5, depending on the host system.

5. Check the other available jumper settings

Select other options on J2 as illustrated in Figure 2. Do not change these unless instructed to do so by the host system documentation.

6. Mount the drive in the host system and connect cables

Note. LC drives are designed to be attached to a carrier or tray and inserted into the host system without I/O or power cables.

a.Mount LW drives to the chassis using four 6-32 UNC screws. Two mounting holes are in each side of the drive and there are four mounting holes in the bottom of the drive. Do not over-tighten or force the screws. You can mount the drive in any orientation.

b.Connect the SCSI I/O cable into the drive’s SCSI connector. Take care not to stretch or crimp this cable, and do not block the system’s cooling air flow with the cable.

Note. For Ultra2 and faster operation, special twisted pair LVD cables are required.

c.Connect the DC power cable to the drive. See Figure 3.

Ultra320, Ultra160 or Ultra2 LVD bus segment

	Pin 1
	(check your
	adapter for
	Pin 1 location)
	SCSI LVD/SE
	SCSI SE
SPI-2 compliant
active LVD
external terminator
on the end of	Twisted Pair
the cable
	LVD Cable Host
	Adapter
	PCB

Ultra SCSI SE bus segment

Figure 3. Cable connections and external termination

•	Computer does not seem to recognize the drive. Verify that the drive
	is enabled by the SCSI host adapter setup utility.
•	FDISK does not detect the drive. Run the FDISK program located on
	your Windows startup diskette. Type fdisk/status to verify that your hard
	drive is present.

Seagate support services

For online information about Seagate products, visit www.seagate.com or e-mail your disc questions to DiscSupport@Seagate.com.

If you need help installing your drive, consult your dealer first. If you need additional help, call a Seagate technical support specialist. Before calling, note your system configuration and drive model number.

Africa	+31-20-316-7222	New Zealand	0800-443988
Australia	1800-14-7201	Norway	800-113 91
Austria	0 800-20 12 90	Poland	00 800-311 12 38
Belgium	0 800-74 876	Spain	900-98 31 24
Denmark	80 88 12 66	Sweden	0 207 90 073
France	0 800-90 90 52	Switzerland	0 800-83 84 11
Germany	0 800-182 6831	Singapore	800-1101-150
Hong Kong	800-90-0474	Taiwan	+886-2-2514-2237
India	1-600-33-1104	Thailand	001-800-11-0032165
Indonesia	001-803-1-003-2165	Turkey	00 800-31 92 91 40
Ireland	1 800-55 21 22	United Kingdom	0 800-783 5177
Italy	800-790695	USA/Canada/	1-800 SEAGATE or
Malaysia	1-800-80-2335	Latin America	+1-405-936-1234
Middle East	+31-20-316-7222	Other European
Netherlands	0 800-732-4283	countries	+31-20-316-7222

Warranty. Contact your place of purchase or our web site (above).

Return Merchandise Authorization (RMA). Before returning the drive, verify that it is defective. Seagate Worldwide customer service centers are the only facilities autho- rized to service Seagate drives. Contact nearest center for return procedures and trade regulations.

Shipping the drive

Caution. Back up the data before shipping. Seagate assumes no responsibility for data lost during shipping or service. Shipping drive in an unapproved container voids the warranty. Pack the drive with original box and packing materials. Use no other materials. This prevents electrical and physical damage in transit.

© 2002 Seagate Technology LLC All rights reserved

Publication number: 100139875, Rev. C, June 2002, Printed in U.S.A.

Seagate, Seagate Technology, the Seagate Logo, and Cheetah are either registered trademarks or trademarks of Seagate Technology LLC. All other trademarks are the property of their respective owners.