Assigning System Resources; Disabling On-Board Controllers; Adding External Scsi Peripheral Devices; Choosing Scsi Cables - Intergraph Zx10 5U System Manual

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3. Slide the expansion card carefully into the card guides. Ensure that the connectors on the
board's edge are aligned properly with the socket.
4. Push the card into the socket firmly and evenly until it is fully seated.
5. Secure the card to the card guide with a retaining screw (6-32 x 0.25 hex head).
6. Attach any required cables to internal or external connectors.
7. Replace the top cover. See Chapter 7, "Gaining Access to System Components."

Assigning System Resources

Some expansion cards include a configuration diskette that you can use to reserve the system
resources required for the card. Other expansion cards do not include a diskette, but require that
you manually program the BIOS with the configuration information.
See the System Board Manual for details on using BIOS Setup to assign system resources and
configure the BIOS for expansion cards.

Disabling On-Board Controllers

You may need to disable the on-board audio, networking, or SCSI controllers to use an expansion
card for these functions. You can disable these on-board functions using the BIOS Setup program.
See the System Board Manual for details on using BIOS Setup to disable the on-board controllers.

Adding External SCSI Peripheral Devices

The system has a dual-channel low-voltage differential (LVD) SCSI controller integrated on the
system board. Depending on your system configuration, you can connect Ultra, Ultra2, or Ultra3
SCSI peripheral devices to the SCSI port on the back of the base unit. The port connects to
Channel A of the SCSI controller. See Chapter 1, "Setting Up the Hardware," to locate the SCSI
port.
CAUTION If no external SCSI peripheral devices are connected to the SCSI port, connect a
terminator module to the port.

Choosing SCSI Cables

For each SCSI bus, the type of bus and the data clock speed of the fastest device on that bus
determine its maximum length. Knowing this, you can determine the maximum cable length you
can use to connect external SCSI devices to the system.
The following table provides a guide to maximum SCSI bus length. Note that bus width (for
example, Narrow versus Wide) does not affect the maximum bus length.