74
Drives
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SCSI ID Numbers
Internal SCSI devices must have a unique SCSI ID number from 0 to 15. If you are using
the SCSI connector on the system board and a SCSI controller card installed in your
computer, you have two separate SCSI buses operating. Each SCSI bus has a set of SCSI ID
numbers from 0 to 15.
When SCSI devices are shipped from the factory, the default SCSI ID numbers are
assigned as follows:
SCSI devices installed by Dell are configured correctly during the manufacturing process.
You do not need to set the SCSI ID for these SCSI devices.
If you attach additional optional SCSI devices, see the documentation for each device for
information about setting the appropriate SCSI ID number.
NOTICE:
Dell recommends that you use only SCSI cables purchased from Dell. Cables
purchased elsewhere are not guaranteed to work with Dell computers.
Device Termination
SCSI logic requires that termination be enabled for the two devices at opposite ends of the
SCSI chain and disabled for all devices in between.
It is recommended that you use terminated cables and that you disable termination on all
devices. See the documentation provided with any optional SCSI device you purchase for
information on disabling termination on the device.
System Board Controller
Controller Card
Device
ID
Device
ID
Controller
7
Controller
7
Boot hard drive
0
Boot hard drive
0
CD or DVD drive
5
tape or DAT drive
6
NOTE:
There is no requirement that SCSI ID numbers be assigned sequentially
or that devices be attached to the cable in order by ID number. If two or more
devices use the same ID, your computer may hang during POST and in SCSI
BIOS.
Summary of Contents for Precision Workstation 650
Page 3: ......
Page 4: ......
Page 14: ...14 Contents ...
Page 40: ...26 About Your Computer Dell Precision 650 w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 41: ...3 S E C T IO N 4 About Your Computer Dell Precision 450 Section TOC ...
Page 50: ...36 About Your Computer Dell Precision 450 w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 83: ...6 S E C T IO N 7 Drives Overview Hard Drive Floppy Drive CD DVD Drive ...
Page 91: ...Drives 77 IDE SCSI Drive 1 power cable 2 hard drive cable 1 2 ...
Page 93: ...Drives 79 IDE SCSI Drive 1 tab 2 2 hard drive 1 2 ...
Page 96: ...82 Drives w w w d e l l c o m s u p p o r t d e l l c o m IDE SCSI Drive ...
Page 119: ...9 S E C T I O N 1 0 Opening the Computer Cover ...
Page 128: ...114 Memory w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 129: ...11 S E C T I O N 1 2 Cards ...
Page 130: ...116 w w w d e l l c o m s u p p o r t d e l l c o m Cards ...
Page 139: ...12 S E C T I O N 1 3 Drives Overview Hard Drive Floppy Drive CD DVD Drive ...
Page 147: ...Drives 133 IDE SCSI Drive 1 hard drive cable 2 power cable 1 2 ...
Page 149: ...Drives 135 IDE SCSI Drive 1 tab 2 2 hard drive 1 2 ...
Page 152: ...138 Drives w w w d e l l c o m s u p p o r t d e l l c o m IDE SCSI Drive ...
Page 172: ...158 Microprocessor Airflow Shroud w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 184: ...170 w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 185: ...16 S E C T I O N 1 7 Battery ...
Page 189: ...17 S E C T I O N 1 8 Closing the Computer Cover ...
Page 192: ...178 Closing the Computer Cover w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 253: ...20 S E C T I O N 2 1 Cleaning Your Computer ...
Page 256: ...242 Cleaning Your Computer w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 260: ...246 Ergonomic Computing Habits w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 282: ...268 Regulatory Notices w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 284: ...270 Regulatory Notices w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 286: ...272 Regulatory Notices w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 287: ...24 S E C T I O N 2 5 Warranty and Return Policy ...
Page 312: ...298 Getting Help w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 326: ...312 Glossary w w w d e l l c o m s u p p o r t d e l l c o m ...