| Sun Ultra 24 Workstation Service Manual |    
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| C H A P T E R 5 |
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Maintaining the Workstation |
This chapter provides instructions on how to add, replace, and configure the components in the Sun Ultra 24 workstation after it is set up. The following sections are included in this chapter:
The following procedures are for replacing customer-replaceable units (CRUs):
The following procedures should be performed only by trained field service technicians:
Electrostatic discharge (ESD) can damage system components (CPU, disk drives, expansion boards, and other components). Always observe the following precautions before you install a system component:
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Caution - Do not operate the workstation for more than 10 minutes when the left side access panel is removed. Improper cooling airflow might damage the system’s components. |
This section describes how to remove the left side access panel and the front bezel.
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1. Power off the system and all the peripherals connected to it.
2. Turn the power switch on the back of the chassis to the Off position ( 0 ).
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Caution - Failure to properly turn off the system before you start installing components can cause serious component damage. |
3. To maintain system grounding, do not unplug the AC power cord from the back of the system unless the specific procedure instructs you to unplug it.
4. Loosen the two captive thumbscrews located on the rear edge of the left side access panel (see FIGURE 5-1).
5. Slide the access panel approximately 1.5 cm toward the back of the workstation.
6. Tilt the top edge of the panel out, then lift the panel upward.
7. Carefully set the panel aside.
FIGURE 5-1 Removing the Side Access Panel
| Note - Do not remove the front bezel unless removal is required to complete the current maintenance procedure. |
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1. Perform the steps listed in Powering Off the System and Removing the Left-Side Access Panel.
2. Unlatch the three left side bezel tabs (see FIGURE 5-2) by gently pressing the side of each tab inward and slightly forward.
The edge of the bezel nearest the tabs moves slightly away from the front of the chassis as the ridges holding each tab in place are released.
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Caution - Be very careful when pulling the bezel away from the chassis. The bezel tabs and the chassis hooks might break if you apply too much force or attempt to swing the bezel open. |
FIGURE 5-2 Removing the Front Bezel
3. Gently move the left front side of the bezel slightly to the left, then forward to disengage the three chassis hooks on the right side (see FIGURE 5-2).
4. Remove the bezel and set it aside.
This section describes how to install the left side access panel and the front bezel and prepare the workstation for service.
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1. Ensure that all the components are installed as described in the step-by-step instructions.
2. Reinstall any PCI cards, PCIe cards, or peripherals that you removed.
3. Reinstall the system’s front bezel and left side access panel. See the following sections:
4. Connect all external cables to the system and then connect the AC power cord.
See Connecting Devices and Cables to the Workstation.
See Powering On the Workstation.
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1. Insert the right side bezel hooks into the right side chassis slots. See FIGURE 5-3.
2. Insert the left side bezel tabs into the chassis slots and gently press the left side of the bezel toward the chassis until the tabs lock.
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Caution - Use care when installing the bezel. The bezel tabs and the chassis hooks might break if you apply too much force or attempt to swing the bezel closed. |
FIGURE 5-3 Installing the Front Bezel
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1. Ensure that all the components are installed as described in the step-by-step instructions for the procedure you are following.
2. Reinstall any PCI cards, PCIe cards, or peripherals that you removed.
4. Position the access panel so that the lip on the inside bottom of the panel fits over the bottom chassis rail.
5. Pressing gently against the top of the access panel, slide the panel toward the front of the chassis. See FIGURE 5-4.
The access panel lies flat against the chassis, with no gaps between the two.
6. Tighten the two captive thumbscrews located on the rear lip of the panel.
The access panel is installed flat against the chassis with the thumbscrews tightened.
FIGURE 5-4 Installing the Left Side Access Panel
This section contains procedures to remove and replace a hard drive (HD). Terms used in this section are defined as follows:
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| Note - The Sun Ultra 24 workstation accommodates up to four hard drives. If you are not removing an existing HD, proceed to To Install a Hard Drive. |
1. Follow the instructions in Powering Off the System and Removing the Left-Side Access Panel.
2. Gently lay the system on its right side on a stable, nonslip surface.
3. Locate the HD to be removed.
4. Push the plastic latch in the direction of the engraved arrow (away from the metal locking handle) until the HD handle pops out (see FIGURE 5-5).
FIGURE 5-5 Removing a Hard Drive
5. Grasp the HD handle and pull straight up to remove the HD from the system.
6. Set the HD on an antistatic surface.
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1. Perform the steps listed in Powering Off the System and Removing the Left-Side Access Panel.
2. Gently lay the system on its right side on a stable, nonslip surface.
3. Remove the new HD from its antistatic packaging.
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Caution - Handle the HD with care. Dropping or jarring the HD can cause damage. |
4. Push the plastic latch in the direction of the engraved arrow (away from the metal handle) until the HD handle pops out.
FIGURE 5-6 Installing a Hard Drive
5. Locate the HD assembly and HD cage guides.
You must install a boot drive in HD0, the top slot. Install a second HD in HD1, the second slot. You can install up to four hard drives. The third and fourth HD slots are designated as HD2 and HD3, respectively.
6. Align the HD so the drive is centered with the HD1 or HD2 indicator on the HD cage. Be sure that the labelled side of the HD faces the top of the system.
7. Slide the HD into the HD cage until the metal locking handle begins to close.
| Note - Press on the plastic parts on either side of the metal locking handle to ensure that the handle engages the HD cage. |
8. Press the metal locking handle closed until it locks the HD into the HD cage.
When correctly installed, the hard drive connector seats firmly into the storage backplane connector.
9. Inspect the hard drive assembly to verify the following items:
10. To close the system, perform the steps in To Prepare for Service.
To replace the SATA drives with SAS drives, you will need to order a SAS installation kit which includes a SAS PCIe card, and SAS hard drives.
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1. Power off the system, open and position the chassis and remove the access panel.
See Powering Off the System and Removing the Left-Side Access Panel.
2. Remove the SATA hard drives from the drive bay.
3. Move the HD cables from the motherboard to the SAS card as follows:
a. Release the HD cables from the tiedowns (two places).
b. Disconnect the SATA1 (black connector) cable from the motherboard SATA1 connector and install it on PHY0 of the SAS card.
c. Disconnect the SATA2 (blue connector) cable from the motherboard SATA2 connector and install it on PHY1 of the SAS card.
d. Disconnect the SATA3 (green connector) cable from the motherboard SATA3 connector and install it on PHY2 of the SAS card.
e. Disconnect the SATA4 (red connector) cable from the motherboard SATA4 connector and install it on PHY3 of the SAS card.
| Note - To ease the installation process, connect the cables to the SAS before inserting the card in the PCI slot. |
You must install the SAS card in the PCIe-3 slot. The PCIe-3 slot is the bottom x8 slot.
See FIGURE 5-7 for PCI card locations.
5. Using a No. 2 Phillips screwdriver, remove the chassis filler panel from the PCI card slot.
See FIGURE 5-18. Save the screw for the next step.
6. Insert the SAS card into the PCIe card slot and secure the card with a screw.
See FIGURE 5-7.
7. To keep the cables out of the air stream, carefully secure them in the tie-downs.
FIGURE 5-7 Installing a SAS Card
9. If you are finished working, reinstall the access panel, power on the system, and verify the installation.
See To Install the Left Side Access Panel.
10. Install a new operating system for the new SAS configuration.
Refer to the Sun Ultra 24 Workstation Operating System Installation Guide at:
| Note - Installing a new operating system is necessary only if your SAS drive does not contain a preinstalled OS. |
This section describes how to remove and install the storage backplane. For a definition of terms used in this section, see Removing or Adding a Hard Drive.
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1. Follow the instructions in Powering Off the System and Removing the Left-Side Access Panel.
2. Gently lay the system on its right side on a stable, nonslip surface.
3. Locate the HD assembly (see FIGURE 5-8).
FIGURE 5-8 Location of the Storage Backplane
4. Remove any installed hard drives and place them on an antistatic surface.
5. Disconnect the power and storage interface cables (see FIGURE 5-9).
FIGURE 5-9 Removing the Storage Backplane
6. Using a No. 2 Phillips screwdriver, remove the five screws securing the storage backplane to the chassis. Set the screws aside for later use (see FIGURE 5-9).
| Note - Do not attempt to remove the HD cage. |
7. Remove the storage backplane by pulling it up through the storage cage.
8. Proceed to To Install the Storage Backplane to install the new storage backplane.
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1. Ensure that the power switch on the back panel is in the Off position ( 0 ) and that the system is lying on its side with the left side access panel removed.
2. Remove the new storage backplane from its packaging.
3. Set the storage backplane under the storage cage.
Position the screw holes over the holes in the chassis.
FIGURE 5-10 Installing the Storage Backplane
4. Fasten the storage backplane to the hard drive cage.
Using a No. 2 Phillips screwdriver, install the four screws to secure the storage backplane to the hard drive cage. Torque the screws to 8 to 9 inch-pounds.
5. Connect and route the cables (see FIGURE 5-10).
a. Connect the storage interface cables to the storage backplane connector.
b. Connect the power supply power cable to disk backplane power connector.
Refer to the cabling diagram in the service label on the side of the chassis for information about cable routing.
6. Install all hard drives into the hard drive cage.
7. Inspect the storage backplane, cables, and installed hard drives.
8. To close the system, perform the steps in To Prepare for Service.
This section describes the procedures to remove and install the DVD drive.
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1. Remove any media in the DVD drive.
2. Follow the instructions in Powering Off the System and Removing the Left-Side Access Panel.
3. Remove the front bezel (see Removing the Front Bezel).
4. Disconnect the cables from the back of the DVD drive (see FIGURE 5-11.
FIGURE 5-11 Location of DVD Cables.
5. Push the drive retaining lever tab up to release the retaining hooks (see FIGURE 5-12).
FIGURE 5-12 Removing the DVD Drive
6. Gently pull out the DVD drive from the front of the chassis.
7. Place the DVD drive on an antistatic surface.
8. Install the new DVD drive as shown in To Install the DVD Drive.
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1. Follow the instructions in Powering Off the System and Removing the Left-Side Access Panel.
2. Remove the new DVD drive from its packaging.
3. Lifting the front end slightly, slide the 5.25-inch DVD drive into the drive bay until the holes on the side align with the hooks on the drive retaining lever.
FIGURE 5-13 Installing the DVD Drive
4. To lock the drive in the drive bay, rotate the drive retaining lever downward.
5. Verify that the drive is captured by the retaining hooks.
6. Connect the SATA, power, and jumper cables to the back of the DVD drive (see FIGURE 5-11).
Refer to the cabling diagram in the service label on the side of the chassis for information about correct cable routing.
7. Replace the front bezel and left side cover of the workstation.
8. To close the system, perform the steps in To Prepare for Service.
This section contains instructions for removing and installing a dual inline memory module (DIMM).
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Caution - DIMMs are sensitive to ESD. Be especially careful to follow ESD precautions when changing DIMMs (see Electrostatic Discharge (ESD) Precautions). |
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1. Follow the instructions in Powering Off the System and Removing the Left-Side Access Panel.
2. Gently lay the system on its right side on a stable, nonslip surface.
3. Identify the location from which you will remove a DIMM (for DIMM location, see Internal Components and Connectors).
4. Place your forefingers on the top of the DIMM.
5. Remove the DIMM by pressing down on the ejector bars at both ends of the DIMM socket (FIGURE 5-14).
6. Set the DIMM aside on an antistatic surface.
When you install a DIMM in the workstation, keep the following guidelines in mind:
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1. Follow the instructions in Powering Off the System and Removing the Left-Side Access Panel.
2. Gently lay the system on its right side on a stable, nonslip surface.
3. Identify the location into which you will install a DIMM.
4. Align the DIMM with the proper slot.
| Note - Be sure to align the notch in the DIMM with the notch in the connector. |
5. Place the DIMM in the slot.
6. Evenly press the DIMM straight down into the DIMM slot until both ejector levers lift and click, locking the DIMM in the DIMM slot.
| Note - The DIMM is seated when you hear a click and the DIMM ejector levers are in the vertical position. |
7. Repeat Step 3 through Step 6 for each DIMM that you want to replace.
8. To close the system, perform the steps in To Prepare for Service.
The system automatically detects the amount of memory installed. Run the BIOS setup to view the new value for total system memory and make a note of it.
| Note - For information about how to remove and replace PCI cards, see Removing and Installing PCI Cards. |
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1. Perform the steps listed in Powering Off the System and Removing the Left-Side Access Panel.
2. Gently lay the system on its right side on a stable, nonslip surface.
3. Remove any cables connected to the card.
4. Unfasten and open the PCIe card retainer (see FIGURE 5-16).
FIGURE 5-16 Removing a PCIe Graphics Card
Gently rock the card forward and then lift it straight out of the card slot and set it aside on an antistatic surface.
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| Note - See Internal Components and Connectors for PCIe slot locations and to PCIe and PCI Expansion Slots, for slot specifications. |
1. Perform the steps listed in Powering Off the System and Removing the Left-Side Access Panel.
2. Gently lay the system on its right side on a stable, nonslip surface.
3. Refer to the service label on the inside of the access panel to help you choose an empty card slot that is compatible with the card that you are installing.
4. Remove the metal bracket cover for the slot from the back panel.
5. Remove the card from its protective packaging and lay the card on an antistatic surface until you are ready to install it.
6. Position the card in the selected slot. Ensure that the notch on the bottom right corner of the card engages the latch on the motherboard. (The middle PCIe slot does not have a latch.) See FIGURE 5-17.
7. Press down on the card until it is completely seated in the slot.
8. If you are installing a graphics card that requires supplemental power, connect the graphics power cable to the connector on the card.
This might require moving the cable out of its cable tie.
FIGURE 5-17 Installing a PCIe Graphics Card
9. Fasten the retaining screw into place. Torque the screws to 8 to 9 inch-pounds.
10. Close the system by performing the steps in To Prepare for Service.
| Note - For information about how to remove and replace PCIe cards, see Removing and Installing a PCIe Card. |
This procedure describes how to remove a typical PCI card (including a host bus adapter). PCI cards might vary in the way in they are installed in the system.
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1. Perform the steps listed in Powering Off the System and Removing the Left-Side Access Panel.
2. Gently lay the system on its right side on a stable, nonslip surface.
3. Remove any cables connected to the card.
4. Unscrew the PCI card retainer screw (see FIGURE 5-18).
Gently rock the PCI card forward and then lift it straight out of the PCI card slot and set it aside on an antistatic surface.
FIGURE 5-18 Removing a PCI Card
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| Note - Any 64-bit PCI cards that you install will run in 32-bit mode. |
| Note - See Internal Components and Connectors for PCI slot locations and to PCIe and PCI Expansion Slots, for slot specifications. |
1. Perform the steps listed in Powering Off the System and Removing the Left-Side Access Panel.
2. Gently lay the system on its right side on a stable, nonslip surface.
3. See the service label on the access panel to determine a slot that is compatible with the card you are installing.
4. Remove the metal bracket cover for the slot from the back panel.
5. Remove the PCI card from its protective packaging and lay the card on an antistatic surface until you are ready to install it.
6. Position the card over the selected slot (see FIGURE 5-19).
FIGURE 5-19 Installing a PCI card
7. Press down on the card until it is completely seated in the slot.
8. Fasten the retaining screw into place. Torque the screws to 8 to 9 inch-pounds.
9. Close the system by performing the steps in To Prepare for Service.
The battery specifications for the Sun Ultra 24 workstation are shown in TABLE 5-1.
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Caution - If you remove the system battery, you could erase all system-specific information saved in the CMOS. |
1. Perform the steps listed in Powering Off the System and Removing the Left-Side Access Panel.
2. Use a flat-blade screwdriver to lift and abruptly release the battery latch.
This action releases and removes the battery (see FIGURE 5-20).
FIGURE 5-20 Removing the System Battery
4. With the positive sign (+) facing up, push the battery into the battery connector until it clicks into place (see FIGURE 5-21).
FIGURE 5-21 Installing a System Battery
5. Close the system by performing the steps in To Prepare for Service.
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1. Follow the steps in Powering Off the System and Removing the Left-Side Access Panel.
2. Locate the system fan on the back inside panel of the workstation.
3. Disconnect the system fan’s power connector from the SYS_FAN connector on the motherboard.
To locate the SYS_FAN connector, refer to the service label on the left side access panel or to Internal Components and Connectors.
4. Release the fan’s power cord from the cable management strap.
5. Gently lift the two latches on the bottom of the fan bracket until the latches clear the chassis.
6. Slide the fan assembly down to release the four hooks on the back of the bracket from the holes in the chassis (see FIGURE 5-22).
FIGURE 5-22 Removing the System Fan
7. Pull the fan away from the chassis.
8. Remove the new fan from its package.
9. Locate the four corner holes in the chassis grill where the fan tabs are installed.
10. Gently press the fan against the chassis, with the four hooks on the back of the fan bracket in the corner holes on the chassis grill.
11. Slide the fan up until the latches click into their locked position (see FIGURE 5-23).
FIGURE 5-23 Installing the System Fan
12. Route the fan’s power cord through the cable management strap near the top right corner of the motherboard.
13. Connect the fan cable to the SYS_FAN connector on the motherboard.
14. Close the system by performing the steps in To Prepare for Service.
This section describes removing and installing the power supply.
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1. Follow the steps in Powering Off the System and Removing the Left-Side Access Panel.
2. Unplug the AC power cord from the system.
3. Gently lay the system on its right side on a stable, nonslip surface.
4. Locate the power supply (see FIGURE 5-24).
FIGURE 5-24 Location of the Power Supply
5. Unfasten the connectors from the motherboard and release the cable management straps.
6. Unfasten the power connectors attached to the motherboard, DVD drive and storage backplane (see power connector locations, see FIGURE 1-4).
7. While supporting the power supply, unfasten the four mounting screws (see FIGURE 5-25).
8. Remove the power supply from the interior of the system chassis.
FIGURE 5-25 Removing the Power Supply From the Chassis
9. Install the new power supply as shown as To Install the Power Supply.
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1. Remove the new power supply from its package.
2. Locate where the power supply is to be installed, then place the power supply inside the chassis (see FIGURE 5-26).
a. Align the power supply IEC-320 connector (power cord socket) and fan with the chassis back panel opening.
b. Position the power supply with the chassis power supply brackets.
c. Rotate the power supply down and into the chassis.
FIGURE 5-26 Installing the Power Supply in the Chassis
3. Fasten the four mounting screws on the back of the chassis to secure the power supply to the chassis.
4. Reconnect the power supply cables and then secure them with the cable management straps.
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Caution - When you connect the power supply cables, make sure that the cables do not interfere with the DIMMs. If the cables push against the DIMMs, the DIMMs might loosen from their connectors. |
5. Verify that the four mounting screws are secure, that all cables are reconnected and that the cables are secured by the cable management straps.
6. Close the system by performing the steps in To Prepare for Service.
The I/O board assembly sits beneath the DVD drive and contains the power switch, Power LED, and external connectors for the front panel.
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1. Follow the steps in Powering Off the System and Removing the Left-Side Access Panel.
2. Disconnect any audio, USB, and IEEE 1394 cables connected to the front of the workstation.
3. Remove the front bezel (see Removing the Front Bezel).
4. Locate the back of the I/O board assembly within the workstation.
5. Disconnect all cables on the back of the I/O board.
6. Loosen the captive screw securing the I/O board to the metal frame (see FIGURE 5-27).
FIGURE 5-27 Removing the I/O Board Assembly
7. Push the I/O board out the front of the chassis.
8. Install the new I/O board assembly as shown in To Install the I/O Board Assembly.
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1. If necessary perform the steps in Powering Off the System and Removing the Left-Side Access Panel.
2. Place the system unit on a flat, stable surface.
3. Push the I/O board through the back of the metal I/O board frame until the front panel is flush with the bezel opening (see FIGURE 5-28). Wiggle it side to side if the board binds as you install it.
FIGURE 5-28 Installing the I/O Board Assembly
4. Tighten the captive screw on the metal I/O board frame to secure the I/O board.
5. Connect the internal USB, Power LED, IEEE 1394, and audio cables to the back of the I/O board.
The cables are color coded and keyed to ensure correct installation. See FIGURE 1-5 and the service label on the chassis cover for the locations of the I/O board connections.
7. Close the system by performing the steps in To Prepare for Service.
The following system cables have a connector at each end and can be removed or installed by the customer. All other cables are permanently attached to a system component at one end and must be removed or replaced along with the component. See Internal Components and Connectors or the service label (located on the left side access panel) for connector locations.
| Note - All cables are designed for easy connectivity. Cables cannot be inserted incorrectly unless forced. |
Each cable connector on the motherboard is labeled to help you identify the cable to which it should be connected.
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1. Perform the steps listed in Powering Off the System and Removing the Left-Side Access Panel.
2. Gently lay the system on its right side on a stable, nonslip surface.
3. Remove and replace any cables that need to be replaced.
As you install each cable, connect one end to the appropriate connector, then route the cable through the cable management straps before connecting the second connector.
4. Ensure that all cable routing is correct and that all of the cable connectors are properly seated.
5. Close the system by performing the steps in To Prepare for Service.
This section describes how to remove and install the heatsink and CPU.
| Note - The CPU is not a customer replaceable unit (CRU) and should be replaced only by trained field service technicians. |
| Note - Before removing the CPU from the motherboard, create a backup file to preserve all important data. |
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1. Follow the steps in Powering Off the System and Removing the Left-Side Access Panel.
2. Gently lay the system on its right side on a stable, nonslip surface.
3. Disconnect the heatsink’s CPU fan cable from its connector on the motherboard.
The CPU fan connector is labeled CPU_FAN.
4. Remove the heatsink assembly by alternately loosening (2-3 turns) the four screws that secure the assembly to the motherboard (see FIGURE 5-29).
Continue to alternately loosen each screw until the heatsink assembly is no longer secured to the motherboard.
The heatsink assembly is also mounted to the top surface of the CPU by a layer of thermal grease, which acts as an adhesive.
FIGURE 5-29 Unlatching the Heatsink-Fan Assembly
5. Grasp the heatsink by its plastic mounting bracket and, while gently pulling upward, slowly wiggle the assembly back and forth to break the adhesive seal of the thermal grease.
6. Remove the heatsink-fan assembly from the chassis (see).
7. Place the heatsink on its side and on a flat surface to prevent the thermal grease from contaminating other components.
8. Depress the CPU socket retainer lever and slightly pull the lever outward (away from the CPU) to free the lever from its retaining clip (see FIGURE 5-30).
9. When you have released the lever from the retaining clip, lift the lever to its fully open (upright) position.
This action releases the pressure on the hinged CPU socket retainer.
10. Lift the unhinged side of the CPU socket retainer to its fully open (upright) position.
This action exposes the CPU. The CPU is mounted to a PCB that is keyed (notched) on two opposite sides.
FIGURE 5-30 Removing the CPU From the Workstation
11. Grasp the notched edges of the CPU PCB and lift it out of the socket.
Set the CPU on an antistatic mat or surface.
12. To install the heatsink and CPU, use the procedure shown in To Install a Heatsink and CPU.
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| Note - Observe the ESD precautions and preinstallation procedures described in Electrostatic Discharge (ESD) Precautions. |
1. Ensure that the CPU socket retainer lever and hinged socket retainer are in the fully open (upright) position (see FIGURE 5-31).
2. Remove the new CPU from its antistatic packaging.
The CPU is mounted on a PCB that is notched on two opposite sides.
3. Hold the CPU by its notched sides.
4. Position the CPU over the CPU socket so that the notches on the PCB align with the keys on the socket.
5. Carefully set the CPU onto the socket.
When correctly positioned the CPU lies flat in the socket, and the notches on the CPU are aligned with the keys on the socket, restricting movement of the CPU within the socket.
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Caution - Irreparable damage to the motherboard can occur if downward force is applied to the socket. Do not attempt to force the CPU into the socket to seat it. |
FIGURE 5-31 Installing the CPU
6. When the CPU is positioned in the socket, lower the hinged socket retainer to cover the CPU.
7. Lower the socket retainer lever, pressing it downward securing it under the lever retaining clip.
8. Do this step only if you are installing a new CPU. Otherwise, go to Step 9.
a. Clean any contamination from the top of surface of the CPU, using the supplied alcohol wipe.
The heatsink assembly already has thermal grease applied. You do not need to apply additional thermal grease.
b. Remove the plastic cover from the heatsink-fan assembly.
9. Do this step if you are installing an already-used CPU onto a new motherboard. Otherwise, go to Step 10.
a. Remove the grease from the CPU and the heatsink using the supplied alcohol wipe.
b. Use the supplied syringe to apply approximately 0.5 ml of thermal grease to the center of the top of the CPU.
Empty the entire syringe onto the chip.
c. Using the wrapper of the alcohol wipe or the clean edge of a plastic bag, spread the thermal grease until it covers the top of the CPU in a thin, uniform layer.
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Caution - Do not use an unprotected finger to spread the thermal grease. The oil on your finger will degrade the performance of the thermal grease. |
10. Inspect the heatsink-fan assembly for dust and lint. Clean if necessary.
11. Carefully position the heatsink-fan assembly over the CPU, aligning the screws with the holes in the motherboard.
12. Lower the heatsink-fan assembly onto the top of the CPU, avoiding any side-to-side movement. See FIGURE 5-32.
FIGURE 5-32 Installing the Heatsink-Fan Assembly
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Caution - If you move the heatsink assembly too much during installation, the layer of thermal grease might not be distributed evenly, leading to component damage. |
13. Press down slightly on the top of the heatsink-fan assembly while alternately tightening (3-5 turns) each of the four screws.
Continue doing this until the heatsink-fan assembly is secured to the motherboard and you can no longer tighten the screws (see FIGURE 5-33).
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Caution - Irreparable damage can occur to the motherboard if you attempt to overtighten the heatsink-fan assembly screws. |
FIGURE 5-33 Securing the Heatsink/Fan Assembly Latches
14. Connect the CPU fan cable to the connector on the motherboard.
15. Return the system to the upright position.
16. Close the system by performing the steps in To Prepare for Service.
The following sections describe how to remove and install the Sun Ultra 24 workstation system motherboard.
| Note - The motherboard is not a CRU and should be replaced only by trained field service technicians. |
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1. Follow the steps in Powering Off the System and Removing the Left-Side Access Panel.
2. Gently lay the system on its right side on a stable, nonslip surface.
3. Remove any PCI or PCIe cards installed on the motherboard (see To Remove a PCI Card).
4. Remove the DIMMs and the CPU from the motherboard.
5. Disconnect all cables attached to the motherboard.
6. Remove the nine Phillips screws that fasten the motherboard to the chassis (see FIGURE 5-34).
FIGURE 5-34 Removing the Nine Motherboard Screws
7. Pull the motherboard away from the chassis.
See the following sections for information about how to remove and replace the CPU and memory:
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A motherboard FRU contains two components, the motherboard and the heatsink mounting bracket. To complete this procedure you must mount the bracket onto the backside of the motherboard before you install the motherboard into the workstation chassis.
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Caution - Observe proper ESD precautions when handling a new motherboard. |
1. Remove the motherboard from the anti-static packaging.
You need to use the internal ESD EPE (pink) foam packaging material as part of this procedure.
2. Place the motherboard face down onto the ESD EPE foam packaging material.
The foam protects the components on the top side of the motherboard and offers additional ESD protection.
3. Locate the four bracket mounting holes on the backside of the motherboard (see FIGURE 5-35).
FIGURE 5-35 The Four Bracket Mounting Holes on the Backside of the Motherboard
4. Remove the mounting bracket from the package.
One side of the mounting bracket has four threaded standoffs and a protective paper-backing.
5. Peel the protective paper-backing from the bracket (see FIGURE 5-36, panel 1).
This exposes an adhesive surface on the bracket.
FIGURE 5-36 Installing the Mounting Bracket on to the Backside of the Motherboard
6. Align the four threaded standoffs on the bracket with the four holes on the back side of the motherboard.
7. Place the bracket on to the backside of the motherboard, taking care to seat the threaded standoffs inside the bracket mounting holes (see FIGURE 5-36, panel 2).
8. Gently apply enough pressure to the mounting bracket so that the adhesive on the bracket contacts and adheres to the backside of the motherboard.
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Caution - Excessive force can cause irreparable damage to the motherboard and components on the top side of the motherboard. |
9. Turn the motherboard over and place it in the chassis so that the nine screw holes in the motherboard align with the nine threaded standoffs inside the chassis.
10. Fasten the motherboard to the chassis using the nine Phillips screws and a #2 Phillips screwdriver (see FIGURE 5-37).
Use a torque tool to torque the screws to 8 to 9 inch-pounds.
11. Install the CPU and heatsink.
Refer to the following sections for information about removing and replacing the CPU and heatsink:
Replacing the Heatsink and CPU
12. Install the DIMMs as necessary.
Refer to the following sections for information about removing and replacing the memory:
13. Install any PCI cards or a PCIe graphics card. See the following sections:
14. Reconnect all internal system cables.
15. Verify that all system components are securely installed or connected.
16. Close the system by performing the steps in To Prepare for Service.
FIGURE 5-37 Installing the Motherboard
This section contains procedures for accessing, updating, and recovering the system BIOS. It also contains procedures for accessing and configuring the Intel® Management Engine BIOS extension (MEBx).
This procedure describes how to access the system’s BIOS Setup utility. The BIOS Setup utility allows you to customize your workstation to your environment and configuration.
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1. Power on or reboot the system and watch the screen for the prompt to press F2 to enter the BIOS Setup utility.
The BIOS Setup utility screen appears.
3. Use the arrow keys to navigate the utility and make configuration changes.
4. Press the F10 key to save changes and exit or press Esc to exit without saving.
Use this procedures to update the system BIOS. BIOS updates contain fixes, patches, security updates, new drivers, and enhancements. For optimum workstation performance, Sun recommends that you update your system to the latest BIOS version. See the Sun Ultra 24 Workstation Product Notes for BIOS update availability, BIOS version information, and up-to-date information about BIOS, hardware, and software issues.
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1. Access the BIOS Setup utility (see Accessing the System BIOS Setup Utility).
1. Make note of any customized BIOS settings.
The BIOS contains default values which you can change to customize the workstation for your environment or hardware configuration. Updating the BIOS will reset these settings to version’s default values.
2. Exit the BIOS Setup utility.
3. Download the latest Sun Ultra 24 workstation Tools and Drivers DVD ISO image from the Sun web site:
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Caution - Ensure that you download the ISO image for the Sun Ultra 24 workstation. |
5. Enable ME FW Local Update. See Enabling ME FW Local Update.
6. Insert the DVD into the system and then reboot the system.
7. When prompted, choose option 2 to flash the BIOS.
8. Respond to the prompts and then wait until the BIOS update is complete.
9. Set the ME Power policies to a minimum of desktop: On in S0,S3. See Setting ME Power Policies.
10. Remove the Tools and Drivers DVD from the DVD drive.
If your BIOS becomes corrupted, you will not be able to use the workstation until you recover the BIOS. Use this procedure to recover from a corrupted system BIOS.
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1. Copy the file /BIOS/BIOSxxx.ROM from the Tools and Drivers DVD to the root directory of a USB flash drive.
2. On the flash drive, rename the file BIOSxxx.ROM to AMIBOOT.ROM.
3. Insert USB flash drive into an available USB port on the workstation.
4. Power on the workstation, press and hold the Ctrl + Home keys and watch the USB flash drive’s access light.
5. When the flash drive’s access light starts to blink, release the keys.
6. Follow the onscreen instructions to recover system BIOS.
Use this procedure to access the MEBx and configure the Management Engine (ME).
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1. Power on or reboot the workstation.
Watch the output for the prompt to press Ctrl-P to enter the MEBx (Management Engine BIOS Extension).
2. When the prompt appears, press Ctrl-P.
3. Enter the default ME password:
The Intel MEBx main menu appears.
| Tip - To change the default password move the cursor to Change Intel ME Password and press Enter. |
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1. Access the Intel MEBx (see To Access Intel MEBx).
2. Move the cursor to Intel ME Configuration and press Enter.
The following message appears:
System resets after configuration changes. Continue?: (Y/N) |
4. Move the cursor to Intel ME Firmware Local Update and press Enter.
5. Move the cursor to Enabled and press Enter.
The workstation saves the change and reboots.
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1. Access the Intel MEBx (see To Access Intel MEBx).
2. Move the cursor to Intel ME Configuration and press Enter.
The following message appears:
System resets after configuration changes. Continue?: (Y/N) |
4. Move the cursor to Intel ME Configuration and press Enter.
5. Move the cursor to Intel ME ON in Host Sleep States and press Enter.
6. Move the cursor to Desktop: ON in S0, S3 and press Enter.
The workstation saves the change and reboots.
If your Intel Management Engine (ME) firmware becomes corrupted, you might see the false error messages related to system components. Use the procedures in this section to recover from a corrupted ME firmware.
To resolve this issue, you need to recover the ME firmware using the procedure, To Recover the ME Firmware, Option 1. If this procedure doesn’t work, use To Recover the ME Firmware, Option 2.
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1. Download the latest Sun Ultra 24 Workstation Tools and Drivers DVD ISO image (v1.2 or later) from:
http://www.sun.com/desktop/workstation/ultra24/downloads.jsp
2. Burn a DVD from the ISO image.
3. Boot the workstation using the Tools and Drivers DVD.
The Tools and Drivers DVD main menu appears.
4. Select option 3, Firmware Update.
This step recovers the firmware and reboots the workstation.
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If option 1 recovery procedure doesn’t work, use this procedure to recover the ME firmware.
1. Set up the workstation for operation.
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Caution - Possibility of electric shock. Do not operate the workstation without the covers installed. |
2. Boot from the Tools and Drivers DVD.
The Tools and Drivers DVD main menu appears.
3. Select option number 4 to go to DOS.
A window opens and a DOS prompt appears.
4. Depending on your version of Tools and Drivers CD, flash the firmware using one of the following batch files:
The ME firmware flash update process begins.
5. When the update is finished, power off the workstation using the front power button.
6. Remove the side cover and locate jumper J25 on the workstation motherboard.
J25 is a three position jumper located near the inside end of slot PCI 0. Jumper J25 is located next to jumper J26. FIGURE 5-38 shows a photograph and a graphic representation of the location of J25 and J26, the pin numbering, and the jumper cap residing at the factory setting.
a. Turn off the AC power to the workstation using the power switch on the rear panel.
c. Turn on the AC power to the workstation using the power switch on the rear panel.
FIGURE 5-38 The Location of J25
7. Pull the jumper cap on J25 from pin position 1-2 (factory setting) and move the cap to pin position 2-3. FIGURE 5-39 shows the jumper cap on J25 set to pin position 2-3.
FIGURE 5-39 Jumper J25 with Cap on pins 2 and 3
8. Wait 60 seconds and then move the jumper cap back to pin position 1-2 (see FIGURE 5-40).
FIGURE 5-40 Jumper 25 with Cap Moved Back to Pins 1 and 2
9. Power off the workstation and restore the video card to the original configuration.
10. Install the covers, attach all cables and prepare the workstation for operation.
11. Power on the workstation and watch the output for the prompt to press Ctrl-P to enter the Intel ME Setup.
12. When the prompt appears, press Ctrl-P.
13. Enter the following ME password:
The Intel ME BIOS Setup main menu appears.
14. Move the cursor to Intel ME Configuration and press Enter.
The following message appears:
System resets after configuration changes. Continue?: (Y/N) |
16. Move the cursor to Intel ME Firmware Power Control and press Enter.
17. Move the cursor to Intel ME ON in Host Sleep States and press Enter.
18. Move the cursor to Desktop: ON in S0, S3 and press Enter.
19. Press the Esc key to exit the Intel ME BIOS Setup utility.
The utility saves your changes and the workstation reboots.
| Sun Ultra 24 Workstation Service Manual | 820-2480-12 |
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Copyright © 2009 Sun Microsystems, Inc. All rights reserved.
To Power Off the System and Remove the Left-Side Access Panel
