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Changing SCSI Controller or Device Settings
You may need to use the SCSI Configuration Utility (
PCI
_
CFG
.
EXE
) to configure the operation of
SCSI peripherals connected to the integrated Symbios SCSI controllers. This utility enables you to
configure SCSI controllers, perform a low-level format on a SCSI hard disk drive, select boot
order, and verify media.
You may need to change SCSI controller parameters on a per-device basis under the following
conditions:
♦
If you are advised to do so by Intergraph Computer Systems technical support or instructed to
do so by the vendor documentation supplied with the SCSI device.
♦
If the SCSI device does not negotiate properly with the controller.
♦
If you exceed the recommended total cable length for connecting SCSI devices to the system.
♦
If you connect non-Ultra or non-Ultra2 SCSI external devices to the system.
For more information on the SCSI Configuration Utility, see Chapter 3, “Configuring the System.”
Upgrading Processors
You can upgrade a single-processor system by adding another processor. When higher-speed
processors become available, you can upgrade one- or two-processor systems by replacing the
existing processors with faster processors.
Processors are mounted in a retention module that surrounds the processor slots. See Chapter 10,
“Servicing System Components,” and the System Board Manual for information on replacing a
processor or adding a new processor.
Follow these rules when adding or replacing processors:
♦
When adding a processor to a single-processor system, the new processor must be the same
speed as the existing processor.
♦
When replacing dual processors with faster processors, both processors must be the same
speed.
♦
After installing faster processors, you must reinstall Windows NT on the system to ensure
proper operation with the new processors.
