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Sun Microsystems X4440, X4240, X4140 manual Isolating and Correcting DIMM ECC Errors

Models: X4140 X4440 X4240

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Isolating and Correcting DIMM ECC Errors

FIGURE 3-2DIMMs and LEDs on Mezzanine Board

Isolating and Correcting DIMM ECC Errors

If your log files report an ECC error or a problem with a DIMM, complete the steps below until you can isolate the fault.

In this example, the log file reports an error with the DIMM in CPU0, slot 7. The fault LEDs on CPU0, slots 6 and 7 are on.

To isolate and correct DIMM ECC errors:

1.If you have not already done so, shut down your server to standby power mode and remove the cover.

2.Inspect the installed DIMMs to ensure that they comply with the “DIMM Population Rules” on page 11.

18 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide • August 2008

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Sun Microsystems X4440, X4240, X4140 manual Isolating and Correcting DIMM ECC Errors

Contents

Sun Microsystems, Inc Sun Fire X4140, X4240, and Servers Diagnostics GuideAugust 2008, Revision A Please Recycle Contents 2. Using SunVTS Diagnostic Software3. Troubleshooting DIMM Problems PrefaceStatus Indicator LEDs Using the ILOM Service Processor GUI to View System InformationError Handling A. Event Logs and POST CodesHandling of Uncorrectable Errors Handling of Correctable ErrorsHandling of Parity Errors PERR Handling of System Errors SERRvi Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide August Preface Before You Read This DocumentRelated Documentation http//docs.sun.comTypographic ConventionsThird-Party Web SitesSun Welcomes Your Comments x Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide AugustService Troubleshooting Flowchart “Service Troubleshooting Flowchart” on page“Gathering Service Information” on page “System Inspection” on page Initial Inspection of the ServerGathering Service Information 2. Document the server settings before you make any changes1. Collect information about the following items 4. Check for potential device conflicts before you add a new deviceSystem Inspection Troubleshooting Power ProblemsExternally Inspecting the Server Internally Inspecting the Server 2. Remove the server cover 6 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide August Using SunVTS Diagnostic Software Running SunVTS Diagnostic TestsSunVTS Documentation Diagnosing Server Problems With the Bootable Diagnostics CDRequirements Using the Bootable Diagnostics CD c. With the three lower buttons you can perform the following actions a. Click the Log buttonClose the Log file window - The window is closed Troubleshooting DIMM Problems “DIMM Population Rules” on page “DIMM Replacement Policy” on page“How DIMM Errors Are Handled by the System” on page “Isolating and Correcting DIMM ECC Errors” on pageHow DIMM Errors Are Handled by the System DIMM Replacement PolicyUncorrectable DIMM Errors # ipmitool -H 10.6.77.249 -U root -P changeme -I lanplus sel list Correctable DIMM Errors BIOS DIMM Error Messages DIMM Fault LEDsDIMM fault LED is off - The DIMM is operating properly Chapter 3 Troubleshooting DIMM Problems FIGURE 3-1 DIMMs and LEDs on MotherboardIsolating and Correcting DIMM ECC Errors 4. Disconnect the AC power cords from the server 8. Dust off the DIMMs, clean the contacts, and reseat them10. Reconnect AC power cords to the server 9. If there is no obvious damage, replace any failed DIMMs20 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide August 11. Power on the server and run the diagnostics test again12. Review the log file Event Logs and POST Codes “Viewing Event Logs” on page “Power-On Self-Test POST” on pageViewing Event Logs Main Advanced PCIPnP Boot Security Chipset Exit The Advanced Menu Event Logging Details screen is displayed Appendix A Event Logs and POST Codes24 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide August Power-On Self-Test POST How BIOS POST Memory Testing WorksRedirecting Console Output 11. Click the Start Redirection button Changing POST Options 28 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide August3. Select Boot Settings Configuration 30 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide August POST Codes 32 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide August POST Codes ContinuedPOST Code Checkpoints 34 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide August POST Code Checkpoints ContinuedInitializes NUM-LOCK status and programs the KBD typematic rate 36 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide August POST Code Checkpoints ContinuedStatus Indicator LEDs External Status Indicator LEDsFront Panel LEDs Back Panel LEDs38 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide August Rear PS LED Amber Power supply faultInternal Status Indicator LEDs Hard Drive LEDs40 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide August FIGURE B-4 DIMMs and LEDs on MotherboardAppendix B Status Indicator LEDs FIGURE B-5 DIMMs and LEDs on Mezzanine Board42 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide August Using the ILOM Service Processor GUI to View System Information “Making a Serial Connection to the SP” on page“Viewing ILOM SP Event Logs” on page “Viewing Replaceable Component Information” on pageMaking a Serial Connection to the SP cd /SP/console start“Viewing ILOM SP Event Logs” on page “Viewing Replaceable Component Information” on pageViewing ILOM SP Event Logs You can select from the following types of events Interpreting Event Log Time Stamps Viewing Replaceable Component Information 48 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide August2. From the System Information tab, select Components Viewing Sensors 50 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide August4. Click a sensor to display its thresholds FIGURE C-3 Sensor Readings Page52 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide August FIGURE C-4 Sensor Details PageError Handling Handling of Uncorrectable Errors“Handling of Uncorrectable Errors” on page “Handling of Correctable Errors” on pageNote the following considerations for this revision FIGURE D-1 DMI Log Screen, Uncorrectable Error Appendix D Error HandlingHandling of Correctable Errors The BIOS logs an SEL record The BIOS logs an event in DMI FIGURE D-2 DMI Log Screen, Correctable ErrorAppendix D Error Handling EXAMPLE D-1 DMI Log Screen, Correctable Error, Memory Decreased 58 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide AugustHandling of Parity Errors PERR FIGURE D-3 DMI Log Screen, PCI Parity Error Handling of System Errors SERR DMI Log Screen with Error 62 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide AugustHandling Mismatching Processors The BIOS performs a complete POSTNo SEL or DMI event is recorded The system enters Halt mode and the following message is displayedHardware Error Handling Summary Hardware Error Handling SummaryHardware Error Handling Summary sync flood error occurred on lastboot, press F1 to continue Continued66 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide August Hardware Error Handling SummaryContinued Hardware Error Handling Summary Continued The Front Fan Fault, Service Action Requiredtach signals Multiple fan68 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide August Index