HP LH 6000 manual Memory Problems

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Chapter 5

Troubleshooting

b.If the POST finds a problem, check the error against the Error Messages and correct the problem.

3.Check that all DIMMs are installed correctly:

a.Check that the DIMMs comply with the Memory Guidelines.

b.Reseat the DIMMs on the system board.

4.To check that the system board is installed and configured correctly:

5.If the HP NetServer indicates there is not enough memory, and if the customer does not want to add memory, try these steps:

a.Disable any drivers that are not necessary for the application being run, and/or the network.

b.Delete memory resident or TSRs (terminate and stay resident) programs.

To solve the problem with steps 5a-5b, the customer must be willing to give up functionality in exchange for more memory.

6.For memory conflicts (two boards or drivers are trying to use the same memory addresses), change the addresses used by the memory

For information about the board addresses, see the Setup Utility.

7.Once a suspect part has been found, verify that it is the problem by reinstalling the part and duplicating the error.

Memory Problems

The memory modules are DIMMs. Note that some HP NetServers require that memory must be installed only in certain sockets or banks, sometimes in multiples (for example, 2 or 4 at a time).

NOTE

If the POSTs (displayed at power-on time) indicate a defective memory module.

 

Replace the defective module.

1.Review the Troubleshooting Checklist before you continue.

2.If memory problems are being experienced, power the system off and on. This performs a "cold" restart, rather than a "warm" restart (as it does when you press Ctrl+Alt+Del).

3.Check the System Event Log for messages indicating memory errors.

4.Run the DiagTools memory test.

5.Reseat the DIMMs.

6.To check that the modules are installed and configured correctly:

a.Run the Setup Utility and check the configuration.

b.Install one known good DIMM. If you still receive an error, replace the system board.

If the error goes away, add another DIMM and reboot again. Continue this process until you have installed all DIMMs or you experience a failure.

Replace the defective DIMM.

7.Once a suspect part has been found, verify that it is the cause of the problem by reinstalling the part and attempting to duplicate the error. Also install it in another memory socket to confirm whether or not the socket is defective.

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Contents Online Version Last Updated May HP NetServer LH 6000/LH 6000rAudience Assumptions Contents To configure the drives in the hot-swap cage as a RAID array Replacing Parts 105 General Information Removing Covers Pedestal LH6000Unlock the bezel Pull bezel toward you, then Removing Covers Rack Mount LH6000r ThumbscrewLeveler Feet Anti-Tip Foot Top Cover Bottom Cover Top Cover Removing the System Board Assembly Page Front of LH6000r Chassis Front ViewFront of LH6000 Chassis Lights and Indicators Rear ViewFront Panel Console Switch and Indicator Descriptions Indicators and Controls behind the LH 6000r Front Bezel Hard Disk Drive LED IndicatorsStatus LED Condition PCI Power LEDs InternalLEDs at the Rear of the Chassis PCI Attention LEDsGreen LED Indicates this HP NetServer Status Power Supply LEDsMain Menu LAN LEDsViewing System Information Event Log MenuFront Panel Console Buttons Button Name Description Chapter General Information Connector Pinouts Boot PriorityIRQ Settings Video Connector PinoutsVideo Connector Pinouts Pin Number Function Serial Port ConnectorSerial Port Connector Pinouts Pin Number Signal Description Parallel Port Connector Pin Narrow Scsi Port ConnectorMini-DIN Connectors Pin Number Signal DescriptionSlots LAN Connector Pin Number Signal DescriptionMemory Guidelines 1B 2B 3B 4BMass Storage Guidelines Hot Addition and Replacement of Hot Plug PCI Boards Accessory Board GuidelinesLocation Drive Type To disable Scsi a channel Remote Control Top Tools BoardOnline Replacement, Hot Swapping, of a PCI Adapter HP NetRAID GuidelinesConfiguration Switches S1-S4 CPU Speed Processors GuidelinesVideo Technical SpecificationResolution Color Depths 3D Video ModesEnvironment Specifications DimensionsSwitch Settings Power RequirementsConfiguration Switches S5-S8 Function To Enable System Board Assembly Illustration System Board IllustrationRemote Memory SE Scsi Management Slots 1 Non-hot-plug +5V Power LEDs Attention LEDsBoard Illustration Slots 5 Hot-plug Slots 7 +3.3V or +5VPower Management/Interconnect Board Illustration Parts Information Exploded View Covers, Bezel, Front PanelExploded View Power Supply, I/O Board, Fans Exploded View Mass Storage Exploded View System Board Assembly Exploded View Exhaust Fans Replaceable Parts List Description Replacement ExchangeDescription Replacement Exchange Dimm 128MB Sdram Cabling Diagram Power CordsKeyboards Cabling Power HP NetServer LH6000/LH6000r Cabling DataDiagnostic Tests Diagnostics DescriptionHP NetServer DiagTools DiagTools CapabilitiesAbout Error Messages Advantages and Limitations of Hardware DiagnosticsPost Routines Beep Codes Beep Code Test Failure Port 80H Repair Error MessagesIf you still dont see anything An ISA accessory board reports an initialization problem HP NetServer Management Controller failed its self-testDimm Management Controller has failed to respond Keyboard has reported an error during its self-testMouse has reported an error during its self-test Keyboard is not connectedCD-ROM drive has reported an error during its self-test Chapter Diagnostics Integrated LAN interface is not responding Chapter Diagnostics Troubleshooting Tips Preventive Maintenance ProceduresComponent Time Frame Maintenance Procedure General Troubleshooting Sequence System Will Not Boot Clearing the System ConfigurationSystem Will Not Power Up Intermittent FailuresSystem Board Assembly and Configuration Switch Password Problems Incorrect System ConfigurationBios Recovery Troubleshooting Checklist Check for any general problemsNo lights are on and no error message appears General System ProblemsPower goes off on the server and doesnt come back on System does not start boot Server powers-off then powers on again by itselfServer stops working hangs Memory Problems Symptoms CD-ROM drawer will not open CD-ROM ProblemsCD-ROM drive is not working properly Flexible Disk Drive Problems NetServer wont boot from the CD-ROMSymptoms Adapter cant connect to the network Keyboard and Mouse ProblemsNetwork Interface Card Problems Mouse does not work or is intermittentPower Problems Symptoms Fan is not working Power LED does not lightScsi Subsystem Problems Scsi Bios has trouble loading Scsi subsystem does not work at installationChapter Troubleshooting Channel x, Scsi ID #n id info Drive C 80h Video/Monitor Problems Scsi subsystem stops workingChapter Troubleshooting Symptoms An installed driver cannot find a PCI board Configuration ProblemsConfiguration cannot be saved and the battery loses power Status LED Indicator Activity LED Verifying Hard Disk Drive OperationProcessor Problems Light PipesPrinter/DataComm Problems Service Tools Required Safety InformationReplacing Power Supply Modules Rack version similar Power Supply Modules Thumbscrews Replacing the Control PanelReplacing the HP NetRAID Dimm Replacing the System Battery DimmChapter Replacing Parts Replacing the NetRAID Battery Backup Module Optional System Backplane Unplug cable Battery Backup Module BBMReplacing System Memory System Board Assembly on Grounded Anti-static pad Paired Memory Slots If the latches do not close, repeat until they doReplacing a Processor Processor 5 6 2 VRM12 LocationsReplacing a VRM VRMReplacing the Power Supply Fans Replacing the Rear Chassis Fans Replacing the I/O Fans Replacing the Processor FansRemoving a Processor Fan Replacing the Hot Swap Mass Storage Cage Replacing the I/O Board Raise retainer latches Disconnecting the I/O Board Replacing the Processor Board Processor board Captive fastener Cover System board Replacing the System Board 100 Replacing the Power Management/Interconnect Board 102 Replacing the PCI Hot-Swap Assembly Chapter Replacing Parts 104 DC Power Switch, 11 depth IndexFans HP NetServer AssistantSecure Mode Indicator, 11 serial port TopToolsTroubleshooting