HP Security Camera ML100 manual Memory problems, Server response time is slower than usual

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4.When migrating encrypted data to a new server, be sure to follow the recovery procedures in the operating system documentation.

Server response time is slower than usual

Action: Be sure the hard drive is not full, and increase the amount of free space on the hard drive, if needed. It is recommended that hard drives should have a minimum of 15 percent free space.

Memory problems

General memory problems are occurring

Action:

Isolate and minimize the memory configuration. Use care when handling DIMMs ("DIMM handling guidelines" on page 59).

o Be sure the memory meets the server requirements and is installed as required by the server. Some servers may require that memory banks be populated fully or that all memory within a memory bank must be the same size, type, and speed. To determine if the memory is installed properly, see the server documentation.

o Check any server LEDs that correspond to memory slots.

o If you are unsure which DIMM has failed, test each bank of DIMMs by removing all other DIMMs. Then, isolate the failed DIMM by switching each DIMM in a bank with a known working DIMM.

o Remove any third-party memory.

To test the memory, run HP Insight Diagnostics (on page 48).

Server is out of memory

Action:

1.Be sure the memory is configured properly. Refer to the application documentation to determine the memory configuration requirements.

2.Be sure no operating system errors are indicated.

3.Be sure a memory count error ("Memory count error exists" on page 81) did not occur. Refer to the message displaying memory count during POST.

Memory count error exists

Possible Cause: The memory modules are not installed correctly.

Action:

1.Be sure the memory modules are supported by the server. See the server documentation.

2.Be sure the memory modules have been installed correctly in a supported configuration. See the server documentation.

3.Be sure the memory modules are seated properly ("DIMM handling guidelines" on page 59).

4.Be sure no operating system errors are indicated.

5.Restart the server and check to see if the error message is still displayed.

6.Run HP Insight Diagnostics (on page 48). Then, replace failed components as indicated.

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Contents HP ProLiant ML100 Series Server User Guide Page Contents Troubleshooting Support and other resources 103 Power up the server Power down the serverServer operations Optional installation services Server setupRack planning resources Optimum environmentTemperature requirements Power requirements Rack warningsElectrical grounding requirements Powering up and configuring the server Installing hardware optionsInstalling the operating system Registering the serverAccess panel Hardware options installationIntroduction Processor optionHardware options installation Hardware options installation Hardware options installation Hardware options installation Hardware options installation Hardware options installation Hardware options installation Hardware options installation SAS or Sata hard drive options Remove the hard drive blank Prepare the hard drive Hard drive LED cable option Installing the LED cable ML110 G4 Hardware options installation Hardware options installation Installing the LED cable ML150 G3 Hardware options installation Connector locations ML110 G5, ML115 G5, and ML150 G5 Installing the LED cable ML110 G5, ML115 G5, and ML150 G5Hardware options installation Hardware options installation HP Smart Array E200 controller card Hardware options installation Removable media device options Installing media devices with railsInstalling media devices with screws Hardware options installation Installing media devices with a media latch Installing a half-height media device Installing media devices with wire retainersInstalling a full-height media device Hardware options installation Interleaving and non-interleaving memory configuration Installing DIMMsMemory options Expansion board options Installing an expansion board with a single retainerHardware options installation Installing an expansion board with individual retainers Installing an expansion board with an external retainer Hardware options installation Hardware options installation HP Insight Diagnostics Server software and configuration utilitiesROMPaq utility Keeping the system currentRequired hardware Embedded Sata RAID featureDiskette and CD-ROM drive options HP Integrated Lights-Out Virtual Floppy and CD-ROM drivesConfiguring the Sata RAID feature Enabling Sata RAID functionality in the Bios Setup UtilityProLiant ML110 Generation 3 Server ProLiant ML150 Generation 5 Servers ProLiant ML115 and ML115 G5 Servers Creating a RAID volumeDOS USB diskette and CD-ROM drivesInstalling an operating system Installing a supported Microsoft Windows OSInstalling a supported Linux or NetWare OS Pre-diagnostic steps TroubleshootingImportant safety information Important safety informationTroubleshooting Preparing the server for diagnosis Symptom informationCommon problem resolution Service notifications Firmware updatesLoose connections Hard drive guidelines Dimm handling guidelinesSAS and Sata hard drive guidelines Scsi hard drive guidelinesSAS and Sata hard drive LED combinations Hot-plug Scsi hard drive LED combinationsStart diagnosis flowchart Troubleshooting flowchartsSee General diagnosis flowchartGeneral memory problems are occurring on Power-on problems flowchart Support CD, or the HP website Post problems flowchart Symptom information on OS boot problems flowchart Server fault indications flowchart Support CD, or the HP website Hardware problems Power source problems Power problemsPower supply problems UPS problemsProblems with new hardware General hardware problemsLow battery warning is displayed One or more LEDs on the UPS is redUnknown problem Third-party device problems Internal system problemsCD-ROM and DVD drive problems Testing the deviceDAT drive problems Drive is not detectedDAT drive is providing poor performance Diskette drive problems Server cannot write to tape DLT drive problemsDLT drive failure occurs DLT drive does not read tapeHard drive problems Fan problemsAn error occurs during backup, but the backup is completed General fan problems are occurringNo hard drives are recognized Data is inaccessibleHard drive is not recognized by the server New hard drive is not recognizedGeneral memory problems are occurring Memory problemsMemory count error exists Server response time is slower than usualProcessor problems PPM problemsServer fails to recognize existing memory Server fails to recognize new memoryExternal device problems Video problemsSystem open circuits and short circuits Audio problems Video colors are wrongSlow-moving horizontal lines are displayed Printer problems Mouse and keyboard problemsModem problems AT commands are not visible No response occurs when you type AT commandsModem does not answer an incoming call Modem does not connect to another modemNetwork controller problems Network controller has stopped working Operating system problems Software problemsOperating system updates When to reconfigure or reload softwareRestoring to a backed-up version Linux operating systems Application software problems Firmware maintenanceTypes of ROM Automatic backupROMPaq utility diskette or USB drive key System ROMCurrent firmware versions ROMPaq Disaster RecoveryUpdating firmware Battery replacement Regulatory compliance notices Regulatory compliance identification numbersFederal Communications Commission notice Modifications CablesCanadian notice Avis Canadien European Union regulatory notice Japanese notice Bsmi notice Korean notice Battery replacement notice Taiwan battery recycling noticeLaser compliance Regulatory compliance notices Electrostatic discharge Preventing electrostatic dischargeGrounding methods to prevent electrostatic discharge Before you contact HP Support and other resourcesHP contact information Customer Self RepairRéparation par le client CSR Riparazione da parte del cliente Reparaciones del propio cliente Reparo feito pelo cliente Support and other resources Support and other resources Support and other resources Acronyms and abbreviations LO100PCI Express PDU Documentation feedback Index Installing operating system Temperature requirements