Sun Microsystems Netra CT 410, Service Manual

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iv Netra CT Server Service Manual • February 2007
3. Handling Boards and Assemblies 3–1
3.1 Handling Boards 3–2
3.2 Handling Assemblies 3–3
Part 2 Troubleshooting the System
4. Troubleshooting the System 4–1
4.1 Troubleshooting the System Using the System Status Panel 4–2
4.1.1 Locating and Understanding the System Status Panel 4–2
4.1.2 Using the System Status Panel LEDs to Troubleshoot the System
4–3
4.2 Troubleshooting the System Using
prtdiag
4–9
4.3 Troubleshooting the System Using Diagnostic Software 4–14
4.4 Troubleshooting the System Using the Power-On Self Test (POST) 4–16
4.5 Troubleshooting the System Using the Alarm Card Software 4–18
4.6 Troubleshooting a Power Supply Using the Power Supply Unit LEDs 4–18
4.6.1 Troubleshooting the Power Supply Unit in the Netra CT 410
Server
4–18
4.6.2 Troubleshooting the Power Supply Units in the Netra CT 810
Server
4–19
4.7 Troubleshooting a Host CPU Board 4–20
4.7.1 General Troubleshooting Tips 4–20
4.7.2 Warning, Critical, and Shutdown Temperatures 4–22
4.7.3 General Troubleshooting Requirements 4–23
4.7.4 Mechanical Failures 4–23
4.7.5 Power-On Failures 4–23
4.7.6 Failures Subsequent to Power-On 4–24
4.7.7 Troubleshooting During POST/OpenBoot PROM and During Boot
Process
4–24