C H A P T E R 5 |
Replacing Chassis Components |
This chapter describes the removal and installation procedures for the Sun Ultra 45 or Ultra 25 workstation chassis components.
This chapter contains the following topics:
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Caution - To prevent equipment damage, review the safety requirements, safety symbols, and safety precautions in Preparing to Replace Componentsbefore you perform any replacement procedure. Additional cautions, warnings, and instructions are provided in the Sun Ultra 45 and Ultra 25 Workstations Safety and Compliance Guide, 819-2785. The document is available from:
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This section describes removal and installation of the fan tray and fan tray backplane.
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Caution - Do not operate the workstation without the fan tray. |
1. Power off the system and attach an antistatic wrist strap. Open and position the chassis, and remove the access panel.
Refer to Powering Off the Workstation.
2. Using the handle, pull the fan tray from the chassis and set it aside.
1. Disconnect the fan tray backplane from the motherboard at connector J20 (FIGURE 5-1).
2. Using a No. 2 Phillips screwdriver, remove the screws for the fan tray backplane.
1. Using a No. 2 Phillips screwdriver, mount the backplane to the chassis.
Do not overtighten the screws.
2. Connect the fan tray cable to the backplane and to the motherboard at connector J20.
3. Align the fan tray in the chassis slot so that the connector is closest to the top of the chassis (FIGURE 5-2).
4. If you are finished working, reassemble the workstation and power on the workstation.
Refer to Reassembling the Workstation.
This section describes removal and installation of the power supply.
1. Power off the system and attach an antistatic wrist strap. Open and position the chassis, and remove the access panel.
Refer to Powering Off the Workstation.
1. If necessary, remove any long PCI cards that are blocking the cables.
Place the PCI card on an antistatic mat.
3. Squeeze the power supply connector clip to disconnect the following cables from the motherboard (FIGURE 5-3).
4. Disconnect the following cables from the hard drive backplane
5. Turn the captive screw that secures the power supply to the chassis (FIGURE 5-3).
6. Using the 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.
Set the power supply aside on an antistatic mat.
Proceed to Installing the Power Supply.
1. Remove the new power supply from its package.
2. Align the power supply IEC-320 connector so that the power cord socket is nearest the left rear of the chassis, when viewed from the back (FIGURE 5-4).
3. 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.
4. Tighten the captive screw that secures the power supply to the chassis (FIGURE 5-4).
5. Connect the following cables (FIGURE 5-5):
6. Inspect the power supply fasteners to verify that:
7. Inspect the power supply cabling to verify that:
9. If you removed any PCI cards, re-install them.
See Section 3.5.5, Installing a PCI Card.
10. Reasemble the workstation. Power on the system, and verify the power supply installation.
Refer to Reassembling the Workstation.
Note - Boot the system with the -r option, so that the Solaris Operating System can reconfigure itself for the new component. See Finishing Component Replacement. |
Copyright © 2006, Sun Microsystems, Inc. All Rights Reserved.