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Silicon Graphics Zx10 Visual Workstation Owner's Guide
(document number: 007-4327-002 / published: 2000-09-20)    table of contents  |  additional info  |  download
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Chapter 8. Upgrading the System

This chapter describes how to upgrade your system by adding or replacing system components.


Warning: This is a user-serviceable system. Service and upgrade tasks should be performed by users who can follow instructions in a manual to service equipment, and can do so without harm to themselves or damage to the equipment.


Before You Begin


Warning: The system is always on when connected to AC power. Before opening the system, disconnect the system's power cord from its AC power outlet.



Warning: Internal components may be at high temperatures. Allow time for them to cool before handling them.



Warning: Internal components can be damaged by static electricity. Use an antistatic wrist strap connected to the bare metal of the system's chassis to protect against electrostatic discharge.



Note: “Right side” and “left side” are as seen from the front of the system.

See Chapter 7, “Gaining Access to System Components” for details on opening the system and protecting against electrostatic discharge.

The procedures in this chapter assume you have already removed the left side panel from the system.

Adding Expansion Cards

You can install Accelerated Graphics Port (AGP), Peripheral Component Interconnect (PCI), non-compliant PCI, Industry Standard Architecture (ISA), and Plug-n-Play (PnP) expansion cards in the system. See below for a general description of these types of cards.

  • AGP cards are graphics controllers that use the dedicated AGP interface for graphics acceleration. AGP cards contain configuration registers that define resource information to the system during startup. AGP cards do not require manual system configuration when installing the card. The system's BIOS detects the board's presence during startup and reads information from the board's configuration registers to assign the necessary system resources.

  • PCI cards contain configuration registers that define resource information to the system during startup. PCI cards do not require manual system configuration when installing the card. The system's BIOS detects the board's presence during startup and reads information from the board's configuration registers to assign the necessary system resources.

  • Non-compliant PCI cards do not contain configuration registers that allow the system to automatically assign the necessary resources. These cards install in PCI slots, but you must configure the system's BIOS to assign system resources before installing the card.

  • Non-PnP ISA cards do not contain registers that define the resource information to the system during startup. Therefore, you must configure the system's BIOS to define the card to the system before installing the ISA card. This reserves system resources for the card.

  • PnP cards are ISA cards that contain configuration registers like PCI cards. During startup, the system's BIOS automatically detects the installed card and assigns the necessary system resources. Since a PnP card is ISA-based, you install it in an ISA slot.


    Note: Assign system resources for any non-PnP ISA card and any non-compliant PCI cards before installation. See “ Getting Support”“.


Each installed PCI card must draw less than 25 watts of power. The total allowable maximum wattage for PCI cards is 150 watts. The PCI slots are limited to 25 watts power dissipation per the Peripheral Component Interconnect Specification 2.1.

Identifying Expansion Card Slots

The system board has seven expansion card slots, located at the lower-left corner of the system board. Slot 7 is a shared slot; you can install a PCI card or an ISA card in this slot, but not both.

Figure 8-1. Expansion Card Slots


Note the following:

  • Slot 1 is for AGP Pro expansion cards.

  • Slots 2, 3, 4, and 7 are for 33 MHz (5 V or Universal) PCI expansion cards.

  • Slots 5 and 6 are for 66 MHz (3.3 V or Universal) PCI expansion cards. These slots can be used for 33 MHz PCI expansion cards if needed.

  • Slot 7 is a shared PCI/ISA slot. This slot can hold either an ISA expansion card or a 33 MHz (5 V or Universal) PCI expansion card.

See the System Board Guide for detailed information on the system board's expansion slots.

Installing an Expansion Card

See the documentation that came with the card for details on installation, configuration, cable connections, and operation.

Figure 8-2. Installing an Expansion Card


To install an expansion card:


Warning: The system is always on when connected to AC power. Before performing this task, disconnect the system's power cord from its AC power outlet.


  1. Remove the blanking plate from an open slot on the back of the base unit. If there are no open slots and you want to replace an existing expansion card, see Chapter 9, “Servicing the System” for instructions.


    Caution: Spare blanking plates are included with the system. Cover an open slot with a blanking plate to ensure proper airflow for cooling and to reduce electromagnetic interference (EMI) emissions.


  2. Slide the expansion card carefully into the card guides. Ensure that the connectors on the board's edge are aligned properly with the socket.

  3. Push the card into the socket firmly and evenly until it is fully seated.

  4. Secure the card to the card guide with a retaining screw (6-32 x 0.25 hex head).

  5. Attach any required cables to internal or external connectors.

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 Guide 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 Guide 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, and these devices will operate at their respective transfer rates. The SCSI port connects to Channel A of the SCSI controller. See Chapter 1, “Setting Up the Hardware” to locate the SCSI port.


Caution: On a server system, if you do not connect an external SCSI peripheral device 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 determines 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.

Table 8-1. Maximum SCSI bus length

SCSI Bus

Single-Ended Bus

Differential Bus

LVD Bus

Ultra (8 bits, 20 MB/sec)

4.9 ft / 1.5 m

39.4 ft / 12 m

39.4 ft / 12 m

Wide Ultra (16 bits, 40 MB/sec)

Not recommended

Not specified

39.4 ft / 12 m

Ultra2 (16 bits, 80 MB/sec)

Not recommended

Not specified

39.4 ft / 12 m

Ultra3 (16 bits, 160 MB/sec)

Not recommended

Not specified

39.4 ft / 12 m

The total cable length on the system's SCSI bus is the sum of the following:

  • SCSI cable for the internal-access bays – 31 inches (0.7 meters).

  • SCSI cable for the external SCSI port – 17 inches (0.4 meters)

  • SCSI internal/external cable (replaces the external SCSI port cable) – 34 inches (0.8 meters)

  • SCSI cable between the system and the first external device

  • SCSI cables between additional external devices

  • SCSI cable inside each device connected to the cable – typically 8 inches (0.2 meters) or less

To ensure data integrity and optimum performance, do the following:

  • Use the shortest cables possible to connect SCSI devices to the system and to each other.

  • Use high-quality SCSI cables to ensure adequate shielding (impedance of 110 to 135 ohms).


    Caution: When handling cables, flex them as little as possible. Ensure that cables do not contact sharp metal surfaces or become excessively bent or twisted. In particular, SCSI cables should not have any creased bends.


Choosing SCSI IDs

To determine the ID of each SCSI device on the system, restart the system. When the BIOS screen displays, look for a list of SCSI devices and write down the ID for each device.

By default, some SCSI IDs are already used by system devices:

  • The primary system disk drive uses SCSI ID 0

  • The SCSI controller uses SCSI ID 7

See the vendor documentation for details on setting a device's SCSI ID.

Terminating SCSI Devices

If the SCSI port is located below the rear fan (standard), the external SCSI bus is not terminated. When you connect SCSI devices to the port, terminate the last device connected to the port.

If the SCSI port is located above the power supply (optional), the system shipped with a terminator module connected to the port. Remove the terminator module to connect SCSI devices to the port.

When connecting devices to the SCSI port:

  • Enable termination on the last external device on the SCSI cable chain. Use an active terminator.

  • Disable termination on all other external devices on the SCSI cable chain.

Connecting SCSI Devices

To connect external SCSI devices:

  1. If the system is connected to AC power and operating, shut down the system and unplug the system power cord from its AC power outlet.

  2. If a terminator module is connected to the SCSI port on the system, remove it.

  3. Connect one end of a SCSI cable to the SCSI port on the system.

  4. Connect the other end of the SCSI cable to a SCSI peripheral device.

  5. Connect a SCSI cable between SCSI ports on any additional SCSI peripheral devices.

  6. Set the SCSI ID of each peripheral device to a unique SCSI ID number. Do not use any SCSI ID numbers already used by the system on that port or channel.

  7. For each SCSI peripheral device connected to the port, if the device is:

    • The last or only device on the SCSI chain, enable SCSI termination

    • Not the last or only device on the SCSI chain, disable or remove SCSI termination

  8. Ensure that the power switch on each peripheral device is in the off position; then connect the power cord from each peripheral device to an AC power outlet.

  9. Turn on power to all connected SCSI peripheral devices, and then start the system.

  10. If necessary, install software drivers and configure the peripheral devices according to the vendor's instructions.

Changing SCSI Controller or Device Settings

You may need to use the SCSI Configuration Utility to configure the operation of SCSI peripheral devices connected to the integrated SCSI controller. This utility enables you to configure SCSI controller, 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 for a device under the following conditions:

  • If you are advised to do so by 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 SCSI external devices to the system.

For information on using the SCSI Configuration Utility, see Chapter 3, “Configuring the System”.

Adding Internal Peripheral Devices

A CD-ROM drive, a floppy disk drive, and the primary system disk drive are installed in bays at the front of the base unit chassis. You can add EIDE and SCSI devices to the front-access bays, and SCSI disk drives to the internal-access bays.

A total of four front-access device bays are available in the front-access device cage. The
CD-ROM drive and the floppy disk drive occupy two of these bays. A total of three internal-access device bays are available in the internal-access device cage. The primary system disk drive occupies one of these bays.

The following table describes the devices in the peripheral device bays:.

Table 8-2. Peripheral Device Bays

Location

Access

Device

Device Size

Bus

Bay 1 (top)

External

CD-ROM drive

5.25 in x 1.6 in

EIDE (Master)

Bay 2

External

EIDE/SCSI device

5.25 in x 1.6 in

EIDE (Either)

Bay 3

External

EIDE/SCSI device

5.25 in x 1.6 in

EIDE (Either)

Bay 4

External

Floppy disk drive

3.5 in x 1.0 in

N/A

Bay 5 *

Internal

Disk drive

3.5 in x 1.0 in *

SCSI

Bay 6 *

Internal

Disk drive

3.5 in x 1.0 in *

SCSI

Bay 7 (bottom) *

Internal

System disk drive

3.5 in x 1.0 in *

SCSI

* Two 3.5-inch x 1.6-inch devices can be installed in bays 5, 6, and 7

The EIDE controller on the system board manages internal EIDE peripheral devices. Two EIDE devices can connect to each of the primary and secondary EIDE channels. The CD-ROM drive connects to the primary EIDE channel as a master device. The cable for the CD-ROM drive can connect to a second (slave) device in one of the front-access device bays. A second cable delivered with the system is available to connect two front-access EIDE devices to the secondary EIDE channel.

A dual-channel low-voltage differential (LVD) SCSI controller on the system board manages internal and external SCSI peripheral devices. SCSI disk drives in the internal-access bays connect to SCSI Channel B. The cable to the SCSI port connects to SCSI Channel A. On some systems, the cable to the SCSI port may also connect to SCSI peripheral devices in the front-access bays (with an optional internal/external cable). Ultra, Ultra2, and Ultra3 SCSI peripheral devices operate at their respective transfer rates.

See the following figure to locate the peripheral device bays.

Figure 8-3. Peripheral Device Bays


For more information:

Have the vendor's documentation available to follow instructions for setting the SCSI ID, enabling or disabling termination, installing device drivers when required, and configuring other drive attributes.

If you are installing a internal peripheral device that connects to an expansion card, see the vendor's documentation for installing the expansion card and required cables. See “ Adding Expansion Cards ” for details.

Adding Memory

You can add system memory by installing or replacing dual inline memory modules (DIMMs) in the system board's DIMM sockets. For more information:

Upgrading Processors

You can upgrade a single-processor system by installing another processor. As higher-speed processors become available, you can upgrade one- or two-processor systems by replacing the existing processors with faster processors. For more information:

Silicon Graphics Zx10 Visual Workstation Owner's Guide
(document number: 007-4327-002 / published: 2000-09-20)    table of contents  |  additional info  |  download

    Front Matter
    About This Guide
    Chapter 1. Setting Up the Hardware
    Chapter 2. Setting Up the Software
    Chapter 3. Configuring the System
    Chapter 4. Operating the System
    Chapter 5. Troubleshooting Operational Problems
    Chapter 6. Reinstalling the Operating System
    Chapter 7. Gaining Access to System Components
    Chapter 8. Upgrading the System
    Chapter 9. Servicing the System
    Chapter 10. System Hardware and Specifications
    Appendix A. Ergonomics Guide
    Index


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