Replacing Chassis Components

C H A P T E R 7

This chapter provides removal and installation procedures for the chassis components.

This chapter contains the following sections:

Section 7.1, Replacing the Fan Tray and Fan Tray Backplane

Section 7.2, Removing and Replacing the Power Supply

Caution - To prevent equipment damage, review the safety requirements, safety symbols, and safety precautions in Chapter 4before you perform any replacement procedure. Additional cautions, warnings, and instructions are provided in the Ultra 40 Workstation Safety and Compliance Guide, part number 820-0122-10. The document is available at:
http://www.sun.com/documentation

Caution - When servicing workstation components, attach an antistatic strap to your wrist and then to a metal area on the chassis. Then disconnect the power cord from the workstation and the wall receptacle. Following this caution equalizes all electrical potentials with the workstation.

7.1 Replacing the Fan Tray and Fan Tray Backplane

This section describes the removal and installation of the fan tray and fan tray backplane.

Caution - Do not operate the workstation without the fan tray.

7.1.1 Removing the Fan Tray

To remove the fan tray:

1. Power off the system and open the chassis.

Refer to Section 4.3, Preparing the Workstation for Servicing.

2. Using the handle, pull the fan tray from the chassis and set it aside.

Removing the fan tray.

FIGURE 7-1 Removing the Fan Tray (Ultra 40 Shown)

7.1.2 Removing and Replacing the Fan Tray Backplane

To remove and replace the fan tray backplane:

1. Remove the fan tray.

Refer to Section 7.1.1, Removing the Fan Tray.

2. Disconnect the fan tray backplane power cable from the fan tray backplane.

See FIGURE 7-1.

3. If you are replacing the fan tray backplane power cable, disconnect the cable from the motherboard FAN connector and set it aside.

4. Using a No. 2 Phillips screwdriver, remove the two screws securing the fan tray backplane.

5. Slide the fan tray backplane toward the front of the system so that the two studs protrude from the wide side of the slots.

6. Remove the fan tray backplane and set it aside.

7. Remove the new fan tray backplane (and cable) from its wrapping.

8. Place the new fan tray backplane so that the studs protrude from the wide side of the slots,

9. Slide the new fan tray backplane toward the back of the system so that the studs hold the backplane in place.

10. Using a No. 2 Phillips screwdriver, replace the two screws that secure the backplane.

11. If you are replacing the fan tray backplane power cable, connect one end of the cable to the motherboard FAN connector,

12. Connect the fan tray backplane cable to the fan tray backplane.

13. Replace the fan tray.

Refer to Section 7.1.3, Installing the Fan Tray

Removing the fan tray backplane.

FIGURE 7-2 Removing the Fan Tray Backplane (Ultra 40 Shown)

7.1.3 Installing the Fan Tray

To install the fan tray:

1. If you have not already done this, power off the system, open and position the chassis, and remove the access panel.

Refer to Section 4.3, Preparing the Workstation for Servicing.

2. Align the fan tray in the chassis slot so that the connector is closest to the top of the chassis and the air ducts point toward the motherboard.

See FIGURE 7-2.

3. Slide the fan tray into place.

Ensure that it does not pinch or tangle any wires or cables.

4. If you are finished working, install the side cover and the access panel, power on the system, and verify the installation.

Refer to Section 8.1, Reassembling the Workstation.

7.2 Removing and Replacing the Power Supply

This section describes the removal and installation of the power supply.

TABLE 7-1 lists the power supply specifications.

TABLE 7-1 Power Supply Specifications
Specification	Value
Input Voltage	100 VAC (Range 1) 110-127 VAC (Range 2) 200-240 VAC (Range 3)
Frequency	50-60 Hz
Current	13 amps (Range 1) 12 amps (Range 2) 7 amps (Range 3)
Wattage	1,000 W maximum

7.2.1 Removing the Power Supply

Caution - If you need to replace the power supply unit or system DC fan unit, contact your local Sun Service personnel. Go to the following URL for contact information: http://www.sun.com/service/contacting/solution.html

Caution - Electrical hazard or personal injury can result from using a fan or power supply unit not recommended by Sun Service personnel.

To remove the power supply:

1. Power off the system, open and position the chassis, and remove the access panel.

Refer to Section 4.3, Preparing the Workstation for Servicing.

Power supply cables.

FIGURE 7-3 Power Supply Cables

2. Squeeze the power supply connector clip to disconnect the following cables from the motherboard.

P1 on the motherboard

P2 on the motherboard

I2C on the motherboard

GFX2_pwr_in

See FIGURE 7-3.

3. Remove the hard drive power cable at connector P3.

4. If P4 is connected to the second hard drive backplane, disconnect it (Ultra 40 M2 only/optional).

If there is no second hard drive backplane, allow P4 to dangle.

Note - If any extended PCI cards interfere with your ability to access the power cords or connectors, remove the cards as described in Section 5.4, Replacing PCI Cards.

Removing the power supply.

FIGURE 7-4 Removing the Power Supply (Ultra 40 Shown)

5. Turn the captive screw that secures the power supply to the chassis.

See FIGURE 7-4.

6. Using the plastic handle, push the power supply out of the back of the chassis.

7. Guide the power cables out of the chassis as you push the power supply out the back of the chassis.

Place the power supply aside on an antistatic mat.

Proceed to Section 7.2.2, Installing the Power Supply.

7.2.2 Installing the Power Supply

To install the power supply:

1. Open and position the chassis.

Refer to Section 4.3, Preparing the Workstation for Servicing.

2. Remove the new power supply from its package.

3. Align the power supply IEC-320 connector (power cord socket) so that the socket is nearest the left rear of the chassis (left rear when viewed from the back).

See FIGURE 7-5.

Replacing the power supply.

FIGURE 7-5 Replacing the Power Supply (Ultra 40 Shown)

4. Guide the cables and push the power supply into the chassis opening until the back of the power supply aligns with the back of the chassis.

5. Tighten the captive screw that secures the power supply to the chassis.

See FIGURE 7-5.

6. Route the cables under the hard drive signal cable, and over the DVD signal cable.

Caution - Take particular care to ensure that cables will not interfere with or get tangled in the fan tray.

7. Connect the following cables to the motherboard.

P1 on the motherboard

P2 on the motherboard

I2C on the motherboard

GFX2_pwr_in (Ultra 40), or GFX2_pwr_out (Ultra 40 M2)

See FIGURE 7-3.

8. Connect the hard drive power cable at P3.

9. Connect the splitter on cable P4 to GFX2_pwr_in (or GFX2_pwr_out) on the motherboard.

10. If a second hard drive backplane is present, connect P4 to it (Ultra 40 M2 only/optional).

See FIGURE 7-3.

11. Inspect the power supply fasteners to verify that they are connected properly.

The power supply push bar is seated.

The power supply captive screw is tight.

12. Inspect the power supply cabling to verify that the cables are routed and connected properly.

P1 on the motherboard

P2 on the motherboard

I2C on the motherboard

GFX2_pwr_in (_out)on the motherboard

P3 to the hard drive backplane

P4 to the second hard drive if one is present (Sun Ultra 40 M2 only/optional). Otherwise, leave it unconnected.

13. If you removed any extended PCI cards to access the cables or connectors, replace them.

Refer to Section 5.4, Replacing PCI Cards.

14. Install the side cover and the access panel, power on the system, and verify the installation.

Refer to Section 8.1, Reassembling the Workstation.

Tip - Boot the system with the -r option, so that the Solaris operating system can reconfigure itself for the new component. See Section 8.1, Reassembling the Workstation.