Chapter 2. Installing the Ultra SCSI Option Board
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## Chapter 2. Installing the Ultra SCSI Option Board

This chapter covers installing the Ultra SCSI option board in your OCTANE workstation.

The following topics are covered in this chapter:

- “Installing a New Version of the IRIX Operating System”

- “Ultra SCSI Option Board Package Components”

- “Preparing the Workstation”

- “Removing the XIO Module”

- “About the XIO Module”

- “Attaching the Ultra SCSI Option Board to the XIO Module”

- “Replacing the XIO Module”

- “Placing a Regulatory Label”

## Installing a New Version of the IRIX Operating System

Before shutting down your system and installing the Ultra SCSI board, be sure you have the current version of the IRIX™ operating system installed on your system. Install the operating system that came with your board before installing the hardware.

## Installing the Software

Read the flier and install the Ultra SCSI software that came with your shipment. Also read any release notes and the notes in the CD booklet for detailed information about the software. To review release notes, choose Toolchest > Help > Release Notes. Release notes are available here after the software has been installed.

To display ASCII text in an IRIX shell, at the prompt, type `cdrelnotes``.`

## Ultra SCSI Option Board Package Components

Figure 2-1. Checking the Ultra SCSI Option Board Shipment

It's a good idea to check your shipment when you receive it. You should receive the supplies shown in Figure 2-1.

## Preparing the Workstation

This section contains instructions on installing the Ultra SCSI option board.

Figure 2-2. Powering Off the OCTANE Workstation

1. Open the cover and push the power button to power off the OCTANE workstation.

2. Unplug the power cord.

3. Push the power button on the monitor to power it off. Wait five minutes.

4. Face the rear of the workstation.

   | Warning: The heat sinks on the XIO boards become very hot. Wait 5 minutes after powering off the OCTANE workstation before you remove the XIO module. Test before touching any of the XIO boards.

   Figure 2-3. Removing the Monitor Cable

5. Remove the monitor cable or other cables from the XIO module. (For illustration purposes, only the monitor cable is shown in Figure 2-3.)

The XIO module can be thought of as a tray to which the XIO graphics boards and option boards are attached.

| Note: The XIO module is always installed with the graphics board toward the top of the workstation, in the upper left quadrant. See Figure 2-3.

## Attaching the Wrist Strap

Figure 2-4. Attaching the Wrist Strap

| Caution: The components inside the OCTANE workstation are extremely sensitive to static electricity; you must wear the wrist strap while replacing parts inside the workstation.

To attach the wrist strap, follow these steps:

1. Unwrap the first two folds of the band and wrap the exposed adhesive side firmly around your wrist.

2. Unroll the rest of the band and peel the liner from the copper foil at the opposite end.

3. Attach the copper foil to a convenient and exposed electrical ground, such as a metal part of the OCTANE workstation.

## Removing the XIO Module

Before removing the XIO module, you must power off the OCTANE workstation, wait
five minutes after powering off the workstation to allow the heat sinks to cool, and attach the wrist strap. If you have not already done this, go to “Preparing the Workstation” and follow the instructions through attaching the wrist strap. Then return here.

Figure 2-5. Identifying the Compression Connector

When you remove the XIO module, the compression connectors on the back of the XIO module (XIO boards) are accessible and easily damaged. All XIO graphics boards have compression connectors, and most XIO option boards do. The Ultra SCSI option board does.

| Caution: The compression connectors on each XIO board are very delicate and easily damaged. Do not touch or bump the gold, bristled pad. For more information on care and cleaning of compression connectors, see the OCTANE Workstation Owner's Guide.

Figure 2-6. Removing the XIO Module Screws

| Warning: The heat sinks on the XIO boards become very hot. Wait 5 minutes after powering off the OCTANE workstation before you remove the XIO module. Test before touching any of the XIO boards.

The XIO module is the holding mechanism for XIO graphics or XIO option boards and holds up to four boards. It can be thought of as a tray to which boards are attached.

1. Loosen the two captive screws in the XIO module handles until the handles move free from the workstation.

   Figure 2-7. Removing the XIO Module

2. Grasp the handles and pull until the XIO module protrudes a couple of inches from the chassis.

   The handles and the XIO module move out about two inches before the I/O panels move.

3. Continue to pull on the handles until the XIO module releases from the workstation.

   Figure 2-8. Supporting the XIO Module

4. Grasp the XIO module along its length, and support the module and XIO boards as you remove them from the chassis.

   Figure 2-9. Placing the XIO Module on Its Side

   The handles protrude from beneath the XIO boards when the XIO module is out of the chassis. When protruding, the identification slots for the XIO boards (D and A, B and C) are visible. Slots B and C are on the opposite side of the XIO module from slots D and A.

   | Note: Do not push on the handle area after you have removed the XIO module. The XIO module locks to the workstation only if the handle area is protruding.

5. Place the XIO module on a flat, antistatic surface. An empty antistatic bag on your desk works well.

| Note: Figure 2-9 above shows an OCTANE/SI graphics board in slot A and blank panel in slot D. OCTANE/SSI or /MXI graphics are twice the width of the OCTANE/SI board and reside in slots D and A, although these boards connect to the workstation through the single compression connector on the slot A side of the board. See Appendix A for illustrations of different graphics boards and the Ultra SCSI option board.

Figure 2-10. Placing a Protective Cap on the XIO Compression Connector

1. Place a cap on the XIO graphics board compression connector.

   | Note: The cap prevents damage to the gold (front) surface when the XIO boards are removed from OCTANE. These caps are placed on any XIO compression connector as soon as the XIO module is removed from the chassis, and then removed before placing the XIO module back in the chassis.

## About the XIO Module

The XIO module is the holding mechanism for XIO graphics or XIO option boards and holds up to four boards. It can be thought of as a tray to which boards are attached. The four quadrants of the XIO module are slots A, B, C, and D. Slots D and A are on one side, Slots B and C on the other. A graphics board, option board, or blank panel attaches to each slot on the XIO module.

- The XIO module must be placed so that the graphics board in slot A is in the upper left corner, or the graphics board may overheat and be damaged.

- The graphics board is always in slot A or slot A and (covering) slot D.

- Option boards occupy slots B and C and possibly D.

- Graphics and option boards may be linked by flex cables.

- Protective blank panels must be placed in unused slots.

- A baffle must be attached to two side-by-side blank panels to ensure proper air flow.

- The XIO compression connector is always covered by a protective cap when an XIO board is out of the OCTANE workstation.

- Extra caps for the compression connectors are shipped with the workstation.

## Attaching the Ultra SCSI Option Board to the XIO Module

If you have not already done so, go to page 5 and follow the instructions through removing the XIO module. If you have already removed the XIO module, go to step 1 on the next page. (Be sure you also read “About the XIO Module and XIO Boards” before beginning your task.)

| Caution: Do not touch the gold (front) surface of the XIO compression connector. Touching it could damage the connector. Place a protective cap on the XIO compression connector, to prevent damage when the XIO boards are removed from the OCTANE workstation. See Appendix C, “Care and Cleaning of the Compression Connector.”

Figure 2-11. Identifying the Baffle

1. Turn the XIO module so that slots B and C are facing you. Select your next step from Table 1-1.

   Table 2-1. Choosing the Next Instruction

   If You Have | Go to
   --- | ---
   An option board in the slot in which you want to install the Ultra SCSI option board. | The option board installation guide for instructions on removing the board.
   A blank panel and an option board, or an SI graphics board and blank panel, in side-by-side slots. | Step 3.
   Blank panels in slots B and C. | Step 2.

   Figure 2-12. Removing the Baffle

   | Note: For illustration purposes, the Ultra SCSI option board is shown in slot C in this manual.

2. Remove the baffle attached to the two blank panels:

   - Using a Phillips screwdriver, remove the four screws holding the baffle to the two blank panels.

   - Remove the baffle.

   - Replace the two screws into the blank panel that stays on the XIO module.

3. Remove the four (or remaining) screws from the blank panel you are removing.

4. Remove the blank panel. Keep it in case you remove an option board. A blank panel or board must be in place in each slot on the XIO module.

5. Keep the baffle. The baffle must be in place over two blank panels to ensure proper air flow, should you ever need to place two blank panels side-by-side.

   | Note: The baffle is never used with an option board, only with two side-by-side blank panels.

   Figure 2-13. Removing a Set of Guides From the XIO Module

If your Ultra SCSI board has components on the corners of the board near the compression connector (see Figure 2-14), you must remove a set of guides. Go to step 6. If the components are not on your board, skip to step 9.

1. Remove the set of guides, back-to back on the XIO module, only from the outer corner of the slot you selected. (The set of guides in the middle of the XIO module do not conflict with the Ultra SCSI board and should not be removed.)

2. Use the wrench that comes with the shipment to unscrew the guides.

3. Keep the guides in case you ever place a different option board in this slot of the XIO module. The guides should be reinstalled for use with other option boards, because they help guide the XIO module into the OCTANE workstation.

   Figure 2-14. Attaching the Ultra SCSI Board to the XIO Module

4. Place the Ultra SCSI option board on the XIO module, aligning the holes in the board to the standoffs on the XIO module. (Do not remove the cap on the compression connector at this time.)

5. Insert and tighten four screws through the Ultra SCSI board and into the standoffs on the XIO module. (For illustration purposes, the board is shown in slot C.)

| Caution: Do not install the baffle. The baffle is used only with two side-by-side blank panels. Placing a baffle on top of an option board risks breaking or bending components on the option board.

Go to “Replacing the XIO Module” for instructions on replacing the XIO module.

## Replacing the XIO Module

Figure 2-15. Installing Slots A and D Toward the Interior of the OCTANE Workstation

| Caution: The XIO module must be replaced with the graphics board toward the interior of the workstation to prevent overheating and damage to the boards. If the XIO module with the OCTANE/SSI or OCTANE/MXI graphics board is inserted incorrectly, a notifier appears during power on telling you to insert the XIO module with the graphics boards toward the interior of the workstation, and power-on stops. Power off the system and correctly insert the XIO module as shown in Figure 2-15.

Figure 2-16. Replacing the XIO Module

Follow these steps to replace the XIO module:

1. Replace the XIO module in the OCTANE workstation. Slide the XIO module into guides on the top and bottom of the workstation.

2. Before you insert the XIO module, make sure the handle portion protrudes in a locked position from the I/O panels, as shown in Figure 2-16.

   If the handles are flush with the I/O panels, the XIO module will stop during insertion. Pull out the handles until the sliding portion of the XIO module looks like that shown in Figure 2-16, and then continue inserting the XIO module into the chassis.

3. Use the handles to push the XIO module into a locked position.

   | Note: The I/O panels are not completely flush with each other or the chassis; there is some slight variation in the depth of the individual boards.

   Figure 2-17. Replacing the XIO Module Screws

4. Tighten the screws in the handles so that the XIO module is attached to the chassis.

5. Remove the wrist strap.

   Figure 2-18. Replacing the Monitor Cable

6. Reattach the monitor cable to the I/O connector.

You have finished replacing the XIO module and are ready for the next step. Go to “Powering On the OCTANE Workstation”.

## Powering On the OCTANE Workstation

Figure 2-19. Powering On the OCTANE Workstation

1. Plug the power cord into an electrical outlet.

2. Push the power button on the front of the OCTANE workstation.

3. Push the power button on your monitor.

Go to the“Placing a Regulatory Label” for instructions on placing an upgrade label, and then go to Chapter 3 for instructions on configuring the Ultra SCSI board and installing the cables.

## Placing a Regulatory Label

Figure 2-20. Rear View of the OCTANE Workstation

If you received a system upgrade label, place it on the system label (top of workstation).

1. Face the back of the OCTANE workstation. The system label (containing the model and CMN number) is located at the top center of the back of the workstation.

2. Place the label over the VCCI and CISPR 22 information.

## Product Support

Silicon Graphics, Inc. provides a comprehensive range of product support for its products. If you are in North America and would like support for your Silicon Graphics supported products, contact the Technical Assistance Center at 1-800-800-4SGI or your authorized service provider. If you are outside North America, contact the Silicon Graphics subsidiary or authorized distributor in your country.

## Returning Parts

To return any part, use the packaging materials and box that came with your replacement part.

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Chapter 1. Features of the Ultra SCSI Option Board |  | Chapter 3. Configuring the Ultra SCSI Option Board and Installing the Cables