Chapter 2. Installing the DCD in a Dual Head Octane2

This chapter shows you how to install the DCD in your Silicon Graphics Octane or Silicon Graphics Octane2 workstation containing Dual Head VPro graphics.

The instructions in this chapter focus on the installation of one DCD. To install a second DCD, see “Installing a Second DCD”.

The following topics are covered:

Checking Your Shipment

Make sure your shipment contains the items shown in Figure 2-1.

Figure 2-1. DCD Shipment Components

DCD 
Shipment 
Components

Checking Your Graphics Board

To use the DCD, your Dual Head workstation must have VPro V12 graphics boards installed. If you have a Single Head workstation, see Chapter 1, “Installing the DCD in a Single Head Octane2”. Properly installed VPro V12 graphics boards ensure that you are running the correct version of IRIX.

To verify that your system has VPro V12 graphics boards, follow these steps:

  1. Open a UNIX shell.

  2. At the prompt, enter hinv 

    You will see output similar to the following:

    2 250 MHZ IP30 Processors
    CPU: MIPS R10000 Processor Chip Revision: 3.4
    FPU: MIPS R10010 Floating Point Chip Revision: 0.0
    Main memory size: 512 Mbytes
    Xbow ASIC: Revision 1.4
    Instruction cache size: 32 Kbytes
    Data cache size: 32 Kbytes
    Secondary unified instruction/data cache size: 1 Mbyte
    Integral SCSI controller 0: Version QL1040B (rev. 2), single ended
      Disk drive: unit 1 on SCSI controller 0
    Integral SCSI controller 1: Version QL1040B (rev. 2), single ended
    IOC3 serial port: tty1
    IOC3 serial port: tty2
    IOC3 parallel port: plp-1
    Graphics board: V12
    Graphics board: V12
    Integral Fast Ethernet: ef0, version 1, pci 2
    Iris Audio Processor: version RAD revision 12.0, number 1
    

  3. Look for the following two lines describing your graphics boards:

    Graphics board: V12
    Graphics board: V12
    

    If only one graphics board is listed, you may have a Single Head system. In that case, see Chapter 1, “Installing the DCD in a Single Head Octane2”.

    If two boards are shown, but they are not listed as V12, you cannot use the DCD. For more information, contact your authorized SGI sales representative.

Preparing Your Workstation

This section describes preparing your workstation for the removal of the Dual Head XIO Module. This preparation consists of:

Powering Off Your Workstation

To power off your workstation, follow these steps:

  1. Open the cover and press the power button to power off your workstation (see A in Figure 2-2).

  2. Unplug the power cable (B).

  3. Press the monitor power switch to power off your monitor (C).

  4. Wait 5 minutes before removing the Dual Head XIO Module.

    Figure 2-2. Powering Off Your Workstation

    Powering Off Your Workstation


    Warning: The heat sinks on the XIO boards get very hot. Wait 5 minutes after powering off your workstation before you remove the Dual Head XIO Module. Test the temperature of the heatsinks before handling any of the XIO boards.


Removing the Cables from the Dual Head XIO Module

Remove all the cables from the Dual Head XIO Module. Only the monitor cables on the VPro graphics boards are shown in Figure 2-3.


Note: The following illustrations show a workstation with a PCI module installed. Your workstation may not have a PCI module, but the DCD installation is the same.

Figure 2-3. Removing the Monitor Cables

Removing the Monitor Cables

Attaching the Wrist Strap


Caution: The internal components are extremely sensitive to static electricity; always wear the wrist strap when you handle parts inside your workstation.

To attach the wrist strap, follow these steps:

  1. Unroll the first two folds of the band (see A in Figure 2-4).

  2. Wrap the exposed adhesive side firmly around your wrist, unroll the rest of the band, and then peel the liner from the copper foil at the opposite end (B).

  3. Attach the copper foil to any exposed electrical ground, such as a metal part of the workstation (C).

    Figure 2-4. Attaching the Wrist Strap

    Attaching the Wrist Strap

Removing the Dual Head XIO Module

You must remove your workstation's Dual Head XIO Module so you can connect the DCD to the daughterboard slot on the VPro graphics board. Before removing the Dual Head XIO Module, you must power off your workstation, wait 5 minutes to allow the heat sinks to cool, and attach the wrist strap, as described in the previous sections.

To remove the Dual Head XIO Module, follow these steps:

  1. Loosen the two captive screws in the Dual Head XIO Module handles with the supplied Phillips screwdriver until the screws are disconnected from the chassis (see Figure 2-5).

    Figure 2-5. Loosening the Dual Head XIO Module Screws

    Loosening the 
Dual Head XIO Module Screws


    Warning: The heat sinks on the XIO boards get very hot. Wait 5 minutes after powering off your workstation before you remove the Dual Head XIO Module. Test the temperature of the heat sinks before handling any of the XIO boards.


  2. Grasp the center plastic knob and pull until the knob protrudes about an inch (2.5 cm) from the chassis, as shown in Figure 2-6.

    The knob moves out about an inch (2.5 cm) before the I/O panel moves.

    Figure 2-6. Releasing the Dual Head XIO Module

    Releasing the Dual Head XIO Module

  3. Grasp the handles on the Dual Head XIO Module and slide the module out of the chassis, as shown in Figure 2-7. You may also want to support the bottom of the module while sliding it out.

    The center plastic knob protrudes when the Dual Head XIO Module is out of the chassis.


    Note: Do not push on the knob after you have removed the Dual Head XIO Module from the chassis. The module locks to the workstation only if the knob is protruding.


  4. Place the Dual Head XIO Module on a flat, antistatic surface. An empty antistatic bag on your desk works well.

    Figure 2-7. Removing the Dual Head XIO Module

    Removing the Dual Head XIO Module

Compression Connector Caution


Caution: The compression connector on the Dual Head XIO Module is very delicate and easily damaged. Do not touch or bump the gold bristled pad (see Figure 2-8). The connector is on the side opposite the handle, as shown in Figure 2-9. Do not grab the back of the Dual Head XIO Module when you remove it, or the compression connector may be damaged.

Always place a cap on the compression connector after removing the Dual Head XIO Module. Caps are included with your workstation. Before reinstalling the Dual Head XIO Module in your workstation, remove the cap from the compression connector.

Before you remove the Dual Head XIO Module, read Appendix A, “Care and Cleaning of Compression Connectors”.

Figure 2-8. Identifying the Compression Connector

Identifying the Compression Connector

Connecting the DCD

The DCD connects to the daughterboard slot on one of the Dual Head XIO Module VPro graphics boards.

  1. Place the Dual Head XIO Module on a flat, antistatic surface, as shown in Figure 2-9. An empty antistatic bag on your desk works well.

    When the Dual Head XIO Module is out of the chassis, the center plastic knob must protrude.

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

    Placing the Dual Head XIO Module on Its Side

  2. Place caps on the Dual Head XIO Module compression connectors, as shown in Figure 2-9 and Figure 2-10. Spare compression connector caps are included with your workstation.


    Caution: To prevent damage to the connector, do not touch or bump the gold (front) surface.


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

    Placing a Cap on the XIO Compression Connector

  3. Loosen the center plastic knob clamping screw, as shown in Figure 2-11. There is no need to remove this screw—loosening it about one turn is sufficient.

    Figure 2-11. Loosening the Center Plastic Knob Clamping Screw

    Loosening the Center Plastic Knob Clamping Screw

  4. Turn the Dual Head XIO Module over and remove the center plastic knob retaining screw, as shown in Figure 2-12. Save the retaining screw for later in the installation.


    Note: You may need to push the knob in slightly to be able to reach the screw with the screwdriver.


    Figure 2-12. Removing the Center Plastic Knob Retaining Screw

    Removing the Center Plastic Knob Retaining Screw

  5. Turn the Dual Head XIO Module back over, remove the center plastic knob, and save it for later in the installation.

  6. Remove the four nuts and lock washers from the BNC connectors, as shown in Figure 2-13. Save the nuts and lock washers for later in the installation.


    Note: These nuts are most easily removed using a socket wrench with a deep 9/16-inch socket.


    Figure 2-13. Removing the Nuts and Lock Washers from the Graphics Board I/O Panel

    Removing the Nuts and Lock Washers from the Graphics Board I/O Panel

  7. Using a 3/16-inch wrench, remove the four jackscrews from the 13W3 connectors, as shown in Figure 2-14. Save the jackscrews for later in the installation.

    Figure 2-14. Removing the Jackscrews from the Graphics Board I/O Panel

    Removing the Jackscrews from the Graphics Board I/O Panel

  8. Loosen (but do not remove) the four Phillips-head screws (items A, B, C, and D in Figure 2-15) that hold the two plastic heat-sink stabilizer brackets.

    Figure 2-15. Loosening the Heat-Sink Stabilizer Bracket Retaining Screws on the Graphics Board I/O Panel

    Loosening the Heat-Sink Stabilizer Bracket Retaining Screws on the Graphics Board I/O Panel

  9. Using your index finger, lift the upper-right plastic heat-sink stabilizing bracket away from the heat sink. This is the bracket held in by screws C and D in Figure 2-15.

  10. While holding the bracket up, gently remove the I/O panel from the Dual Head XIO Module, as shown in Figure 2-16.

    Figure 2-16. Removing the Dual Head XIO Module I/O Panel

    Removing the Dual Head XIO Module I/O Panel

  11. As you remove the I/O panel, be careful not to lose the rubber gaskets located between the I/O panel and the VPro graphics boards. Save the gaskets for later in the installation.

  12. Remove the screw holding the DCD blanking panel to the Dual Head XIO Module I/O panel, as shown in Figure 2-17, and remove the blanking panel.

    Figure 2-17. Removing the DCD Blanking Panel

    Removing the DCD Blanking Panel

  13. Remove the male-to-female nylon standoff from the bag of parts. If the kit includes a female-to-female nylon standoff, it will not be used in this installation. Install the standoff as follows:

    1. Remove the screw that is located behind the daughterboard connector on the VPro graphics board (see A in Figure 2-18), and save it for later in the installation.

    2. Insert the nylon standoff into the hole from which you removed the screw (B in Figure 2-18).

    3. Seat the nylon standoff by turning it clockwise (C in Figure 2-18), but do not over-tighten it to avoid stripping the delicate plastic threads.

      Figure 2-18. Installing the Nylon Standoff

      Installing the Nylon Standoff

  14. Remove the DCD from its antistatic bag.

  15. Align the DCD over the VPro graphics board, as shown in Figure 2-19.

    Figure 2-19. Positioning the DCD

    Positioning the 
DCD

  16. Making sure that the connectors are properly aligned, gently press the DCD down onto the connector on the VPro graphics board.

  17. Place the screw you removed from the VPro graphics board into the hole behind the DCD connector (above the nylon standoff), and then gently tighten the screw by turning it clockwise, as shown in Figure 2-20. When the screw begins to get tight, unscrew it about two turns, leaving the DCD slightly loose (you will tighten it the rest of the way later).

    Figure 2-20. Securing the DCD to the Nylon Standoff

    Securing the DCD to the Nylon Standoff

  18. If you will install a second DCD at this time, skip to the instructions in “Installing a Second DCD”.

  19. Place the two rubber gaskets over the VPro graphics board connectors, as shown in Figure 2-21.

  20. Place the two new rubber gaskets over the two DCD connectors, as shown in Figure 2-21.

  21. Using your index finger, lift the upper-right plastic heat-sink stabilizing bracket. This is the bracket held in by screws C and D in Figure 2-15.

  22. While holding the bracket up, gently install the I/O panel on the Dual Head XIO Module, as shown in Figure 2-21. Make sure that the I/O panel is installed in the correct orientation.

    Figure 2-21. Installing the Dual Head XIO Module I/O Panel

    Installing the Dual Head XIO Module I/O Panel

  23. Install the four nuts and lock washers on the BNC connectors, as shown in Figure 2-22, but do not tighten them yet.


    Note: These nuts are most easily installed using a socket wrench with a deep 9/16-inch socket.


    Figure 2-22. Installing the Nuts and Lock Washers on the Graphics Board I/O Panel

    Installing the Nuts and Lock Washers on the Graphics Board I/O Panel

  24. Install the four jackscrews on the 13W3 connectors, as shown in Figure 2-23, but do not tighten them yet.

  25. Install the four new jackscrews on the DCD DVI connectors, as shown in Figure 2-23, but do not tighten them yet.

    Figure 2-23. Installing the Jackscrews on the Graphics Board I/O Panel

    Installing the Jackscrews on the Graphics Board I/O Panel

  26. Turn the Dual Head Module over and insert the center plastic knob into the I/O panel, as shown in Figure 2-24. Make sure that the knob is installed in the correct orientation. One way of ensuring this is to make sure the spring-loaded screw in the center plastic knob is aligned over the threaded hole in the I/O panel.

  27. Install and tighten the center plastic knob retaining screw, as shown in Figure 2-24.

    Figure 2-24. Installing the Center Plastic Knob Retaining Screw

    Installing the Center Plastic Knob Retaining Screw

  28. Turn the Dual Head XIO Module back over and tighten the center plastic knob clamping screw, as shown in Figure 2-25.

  29. Pull the center plastic knob to make sure it is fully extended. You may have had to push it in slightly in order to reach the retaining screw, but you should pull it back out now.

    Figure 2-25. Tightening the Center Plastic Knob Clamping Screw

    Tightening the Center Plastic Knob Clamping Screw

  30. Tighten the four Phillips-head screws holding the two plastic heat-sink stabilizer brackets, as shown in Figure 2-15 (items A, B, C, and D).

  31. Tighten the four jackscrews on the 13W3 connectors.

  32. Tighten the four jackscrews on the DCD DVI connectors.

  33. Tighten the four nuts on the BNC connectors.

  34. Gently tighten the screw in the hole behind the DCD connector (above the nylon standoff), as shown in Figure 2-20.

  35. Remove the 13W3 cover and the two screws from the bag of parts.

  36. Place the 13W3 cover over the VPro graphics board monitor port, with the padded side of the cover facing the monitor port, as shown in Figure 2-26.

    When a monitor is not connected to the VPro graphics board monitor port, you must install the 13W3 cover to ensure that the system complies with local and international EMC regulations.

  37. Align the two outside holes of the 13W3 cover with the two thumbscrew holes on the sides of the VPro graphics board monitor port.

    Figure 2-26. Placing the 13W3 Cover over the VPro Graphics Board Monitor Port

    Placing the 13W3 Cover over the VPro Graphics Board Monitor Port

  38. Insert a screw in each hole of the 13W3 cover, and then tighten each screw to secure the cover to the VPro graphics board, as shown in Figure 2-27.

    Figure 2-27. Installing the 13W3 Cover

    Installing the 13W3 Cover

Installing a Second DCD

An Octane2 workstation with Dual Head V12 VPro graphics may be upgraded to contain either one or two DCDs. The installation of the first DCD is described in the preceding sections of this chapter. The installation of a second DCD is described in this section.

A Dual Head system with one DCD allows the connection of a total of three monitors: two on the primary graphics head (the one toward the top of the system), and one on the secondary graphics head (the one toward the bottom of the system).

A Dual Head system with two DCDs allows the connection of a total of four monitors: two on the primary graphics head (the one toward the top of the system), and two on the secondary graphics head (the one toward the bottom of the system).

To install a second DCD, follow these steps:

If you will install a second DCD at the same time as the first DCD, and thus have the Dual Head XIO Module out of the Octane2 chassis and have the I/O panel removed, skip to step 4.

  1. Prepare the workstation as described in “Preparing Your Workstation”.

  2. Remove the Dual Head XIO Module, as described in “Removing the Dual Head XIO Module”.

  3. Remove the I/O panel, as described in steps 1 through 11.

    Before performing step 7, you will first need to remove the two screws that hold a cover over the 13W3 connector. After performing step 7, you will then also remove the four jackscrews on the first DCD.

    In step 11, also remove the two rubber gaskets on DVI connectors, and save them for later.

  4. Turn the Dual Head XIO Module over, exposing the VPro graphics board on which there is not yet a DCD installed.

  5. Install the DCD as described in steps 13 through 17.

  6. Reinstall the I/O panel as described in steps 19 through 34.

    Because at this point both VPro graphics boards have DCDs attached, it no longer matters which board ends up at the top, as described in step 21.

    In step 25, you will install eight new jackscrews on the DVI connectors.

    Steps 27 and 28 will be reversed. Tighten the clamping screw first, and then turn the module over and install and tighten the retaining screw.

  7. Install covers over both 13W3 connectors, as described in steps 35 through 38.

  8. Reinstall the Dual Head XIO Module, as described in “Reinstalling the Dual Head XIO Module”.

Reinstalling the Dual Head XIO Module

Follow the steps in this section to reinstall the Dual Head XIO Module.

Figure 2-28. Placing the Primary Head Graphics Boards toward the Top of the Workstation

Placing the Primary Head Graphics Boards toward the Top of the Workstation


Note: Be sure to install the Dual Head XIO Module in the orientation shown in Figure 2-28. This orientation can be confirmed by ensuring that the silk-screened labels on the I/O panel are right-side up, and that the center plastic knob is in the orientation shown in Figure 2-28.


  1. Remove the cap from the Dual Head XIO Module compression connectors.

  2. Slide the Dual Head XIO Module into the guides on the top and bottom of the workstation, as shown in Figure 2-29. Be sure the module is oriented correctly, as shown in Figure 2-28.

    Before you insert the Dual Head XIO Module, make sure the center plastic knob protrudes from the I/O panel, as shown in Figure 2-29.

    If the center plastic knob is flush with the I/O panel, the Dual Head XIO Module will stop before it is fully inserted. If this happens, pull the entire assembly out of the slot about an inch (2.5 cm), pull out the center knob, and then continue inserting the Dual Head XIO Module into the chassis.

    Figure 2-29. Inserting the Dual Head Module with DCD

    Inserting the Dual Head Module with DCD

    Figure 2-30. Latching the Dual Head XIO Module

    Latching the Dual Head XIO Module

  3. Grasp the center plastic knob, as shown in Figure 2-30, and push it into place against the I/O panel.

    Figure 2-31. Replacing the Dual Head XIO Module Screws

    Replacing the Dual Head XIO Module Screws

  4. Gently tighten each of the three captive screws in the plastic knobs, as shown in Figure 2-31. Be careful not to cross-thread these screws and do not over-tighten them.

  5. Remove the wrist strap.

You have finished installing your DCD.

Proceed to Chapter 3, “Connecting Monitors to the DCD”, for instructions on connecting two monitors to the DCD.

Removing the DCD

If you want to remove the DCD and connect a monitor to the VPro graphics board monitor port, follow these steps:

  1. Prepare your workstation, as described in “Preparing Your Workstation”.

  2. Remove the Dual Head XIO Module, as described in “Removing the Dual Head XIO Module”.

  3. Remove the two screws securing the 13W3 cover to the VPro graphics board, and then remove the cover, as shown in Figure 2-32.

    Figure 2-32. Removing the 13W3 Cover

    Removing the 
13W3 Cover

  4. Loosen the center plastic knob clamping screw, as shown in Figure 2-33. There is no need to remove this screw—loosening it about one turn is sufficient.

    Figure 2-33. Loosening the Center Plastic Knob Clamping Screw

    Loosening the Center Plastic Knob Clamping Screw

  5. Turn the Dual Head XIO Module over and remove the center plastic knob retaining screw, as shown in Figure 2-34. Save the retaining screw for later in the installation.


    Note: You may need to push in the knob slightly to be able to reach the screw with the screwdriver.


    Figure 2-34. Removing the Center Plastic Knob Retaining Screw

    Removing the Center Plastic Knob Retaining Screw

  6. Turn the Dual Head XIO Module back over, remove the center plastic knob, and save it for later in the installation.

  7. Remove the four nuts and lock washers from the BNC connectors, as shown in Figure 2-35. Save the nuts and lock washers for later in the installation.


    Note: These nuts are most easily removed using a socket wrench with a deep 9/16-inch socket.


    Figure 2-35. Removing the Nuts and Lock Washers from the Graphics Board I/O Panel

    Removing the Nuts and Lock Washers from the Graphics Board I/O Panel

  8. Remove the four jackscrews from the 13W3 connectors, as shown in Figure 2-36. Save the jackscrews for later in the installation.

    Figure 2-36. Removing the Jackscrews from the Graphics Board I/O Panel

    Removing the Jackscrews from the Graphics Board I/O Panel

  9. Loosen (but do not remove) the four Phillips-head screws (items A, B, C, and D in Figure 2-37) that hold the two plastic heat-sink stabilizer brackets.

    Figure 2-37. Loosening the Heat-Sink Stabilizer Bracket Retaining Screws on the Graphics Board I/O Panel

    Loosening the Heat-Sink Stabilizer Bracket Retaining Screws on the Graphics Board I/O Panel

  10. While lifting the plastic heat-sink stabilizing brackets, gently remove the I/O panel from the Dual Head XIO Module, as shown in Figure 2-38.

    Figure 2-38. Removing the Dual Head XIO Module I/O Panel

    Removing the Dual Head XIO Module I/O Panel

  11. As you remove the I/O panel, make sure not to lose the rubber gaskets located between the I/O panel and the VPro graphics boards. Save the two large gaskets for later in the installation. Store the two small gaskets in the antistatic bag in which you will be placing the DCD.

  12. Remove the screw holding the DCD to the nylon standoff, as shown in Figure 2-39. Save the screw for later in the installation.

    Figure 2-39. Removing the DCD Retaining Screw

    Removing the DCD Retaining Screw

  13. Lift the DCD straight up from the VPro graphics board, as shown in Figure 2-40.

  14. Place the DCD on an antistatic bag.

    Figure 2-40. Removing the DCD

    Removing the 
DCD

  15. Remove the nylon standoff that is located behind the daughterboard connector on the VPro graphics board (see Figure 2-41), and store it with the DCD.

    Figure 2-41. Removing the Nylon Standoff

    Removing the Nylon Standoff

  16. Install the screw you removed in step 12 into the hole just vacated by the nylon standoff, as shown in Figure 2-42.

    Figure 2-42. Installing the Mounting Screw

    Installing the Mounting Screw

  17. Retrieve the DCD blanking panel that was removed when the DCD was installed, and place it in the Dual Head XIO Module I/O board, as shown in Figure 2-43.

  18. Install the blanking panel retaining screw, as shown in Figure 2-43.

    Figure 2-43. Installing the DCD Blanking Panel

    Installing the DCD Blanking Panel

  19. Place the two large rubber gaskets over the VPro graphics board connectors, as shown in Figure 2-44.

  20. While lifting the plastic heat-sink stabilizing brackets, gently install the I/O panel on the Dual Head XIO Module, as shown in Figure 2-44. Make sure that the I/O panel is installed in the correct orientation.

    Figure 2-44. Installing the Dual Head XIO Module I/O Panel

    Installing the Dual Head XIO Module I/O Panel

  21. Install the four nuts and lock washers on the BNC connectors, as shown in Figure 2-45, but do not fully tighten them yet.


    Note: These nuts are most easily installed using a socket wrench with a deep 9/16-inch socket.


    Figure 2-45. Installing the Nuts and Lock Washers on the Graphics Board I/O Panel

    Installing the Nuts and Lock Washers on the Graphics Board I/O Panel

  22. Install the four jackscrews on the 13W3 connectors, as shown in Figure 2-46, but do not fully tighten them yet.

    Figure 2-46. Installing the Jackscrews on the Graphics Board I/O Panel

    Installing the Jackscrews on the Graphics Board I/O Panel

  23. Turn the Dual Head Module over and insert the center plastic knob into the I/O panel, as shown in Figure 2-47. Make sure that the knob is installed in the correct orientation. One way of ensuring this is to make sure the spring-loaded screw in the center plastic knob is aligned over the threaded hole in the I/O panel.

  24. Install and tighten the center plastic knob retaining screw, as shown in Figure 2-47.

    Figure 2-47. Installing the Center Plastic Knob Retaining Screw

    Installing the Center Plastic Knob Retaining Screw

  25. Turn the Dual Head XIO Module back over and tighten the center plastic knob clamping screw, as shown in Figure 2-48.

  26. Pull the center plastic knob to make sure it is fully extended. You may have had to push it in slightly in order to reach the retaining screw, but you should pull it back out now.

    Figure 2-48. Tightening the Center Plastic Knob Clamping Screw

    Tightening the Center Plastic Knob Clamping Screw

  27. Reinstall the Dual Head XIO Module, as described in “Reinstalling the Dual Head XIO Module”.

  28. Connect both monitors to the VPro graphics board monitor ports, as shown in Figure 2-49.

  29. Connect one end of the monitor power cable to your monitor and the other end to a three-prong grounded electrical outlet.

  30. Reconnect your workstation's power cable.

  31. Power on your workstation and monitor.

    Figure 2-49. Connecting Monitors to the VPro Dual Head Graphics Boards

    Connecting Monitors to the VPro Dual Head Graphics Boards