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Sun Server X2-8 (formerly Sun Fire X4800 M2) Diagnostics Guide     Sun Server X2-8 (formerly Sun Fire X4800 M2) Documentation Library
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Document Information

Using This Documentation

Sun Server X2-8 Name Change

Product Downloads

Documentation and Feedback

About This Documentation

Change History

Overview of the Diagnostics Guide

Introduction to System Diagnostics

Troubleshooting Options

Diagnostic Tools

Troubleshooting the Server

How to Gather Service Visit Information

How to Troubleshoot Power Problems

How to Externally Inspect the Server

How to Internally Inspect the Server

Troubleshooting DIMM Problems

How to Isolate and Replace Faulty DIMM Pairs

How to Isolate and Correct Persistent DIMM Errors

Additional Tests

DIMM Hardware


Default BIOS Power-On Self-Test (POST) Events


Using Oracle ILOM to Monitor the Host

Viewing the Oracle ILOM Sensor Readings

Viewing Fault Status

Clearing Faults

Viewing the Oracle ILOM System Event Log

Clearing the System Event Log

Interpreting Event Log Time Stamps

Resetting the SP

Creating a Data Collector Snapshot

How to Create a Snapshot With the Oracle ILOM Web Interface

How to Create a Snapshot With the Oracle ILOM Command-Line Interface

Using SunVTS Diagnostics Software

Introduction to SunVTS Diagnostic Test Suite

SunVTS Log Files

SunVTS Documentation

How to Diagnose Server Problems With the Bootable Diagnostics CD

Performing Pc-Check Diagnostic Tests

Pc-Check Diagnostics Overview

How to Run Pc-Check Diagnostics

Pc-Check Main Menu

System Information Menu

Advanced Diagnostics

Burn-In Testing

Viewing the Pc-Check Results

U-Boot Diagnostic Start-Up Tests

U-Boot Test Options

Running the U-Boot Diagnostic Tests and Viewing the Results

U-Boot Diagnostic Test Output

Sample SP Environmental Variables Showing U-Boot Test Status


How to Internally Inspect the Server

  1. Choose a method for shutting down the server from main power mode to standby power mode.
    • Graceful shutdown: Press and release the recessed Power button on the upper left-hand side of the front panel. This causes Advanced Configuration and Power Interface (ACPI)–enabled operating systems to perform an orderly shutdown of the operating system. Servers not running ACPI–enabled operating systems will shut down to standby power mode immediately.

    • Emergency shutdown: Press and hold the Power button for four seconds to force main power off and enter standby power mode.

      When main power is off, the LED is not lit.


      Caution - When you use the Power button to enter standby power mode, power is still directed to the service processor board and power supply fans, indicated when the Power/OK LED is flashing. To completely power off the server, you must disconnect the AC power cords from the back panel of the server.

    The following illustration shows the recessed Power button on the upper left-hand side of the system front panel.

    image:Power button location
    Power/OK LED
    Power button
  2. Remove one of the CPU modules from the chassis.

    For instructions on removing the CPU module, refer to the Sun Server X2-8 (formerly Sun Fire X4800 M2) Service Manual.

  3. Inspect the internal status indicator LEDs, which can indicate component malfunction.

    For the LED locations and descriptions of their behavior, see Troubleshooting DIMM Problems.

  4. Verify that there are no loose or improperly seated components.
  5. Verify that all cable connectors inside the system are firmly and correctly attached to their appropriate connectors.
  6. Verify that any after-factory components are qualified and supported.

    For a list of supported PCI cards and DIMMs, refer to the Sun Server X2-8 (formerly Sun Fire X4800 M2) Service Manual.

  7. Check that the installed DIMMs comply with the supported DIMM population rules and configurations, as described in Troubleshooting DIMM Problems.
  8. Reinstall the CPU module into the server chassis.
  9. Repeat Step 2 through Step 8 for each CPU module that needs to be inspected.
  10. To restore full power mode to the chassis, (all components powered on), press and release the Power button on the server front panel.

    When main power is applied to the full server, the Power/OK LED next to the Power button blinks intermittently untill BIOS POST finishes.

  11. If the problem with the server is not evident, you can try viewing the power-on self-test (POST) messages and BIOS event logs during system startup.

    Refer to the Sun Server X2-8 (formerly Sun Fire X4800 M2) Service Manual for more information about POST and BIOS event logs.