HP 200 G1 manual Removing memory modules

Page 39

and the remainder is assigned to single channel. If one channel will have more memory than the other, the larger amount should be assigned to channel A.

In any mode, the maximum operational speed is determined by the slowest SODIMM in the system.

Removing memory modules

CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules. Regardless of the power-on state, voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet. Adding or removing memory modules while voltage is present may cause irreparable damage to the memory modules or system board.

The memory module sockets have gold-plated metal contacts. When upgrading the memory, it is important to use memory modules with gold-plated metal contacts to prevent corrosion and/or oxidation resulting from having incompatible metals in contact with each other.

Static electricity can damage the electronic components of the computer or optional cards. Before beginning these procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object.

When handling a memory module, be careful not to touch any of the contacts. Doing so may damage the module.

1.Prepare the computer for disassembly (Preparation for disassembly on page 26).

2.Remove the access panel (Access panel on page 27).

3.Locate the memory module sockets on the system board.

WARNING! To reduce risk of personal injury from hot surfaces, allow the internal system components to cool before touching.

4.Open both latches (1) of the memory module socket , and remove the memory module from the socket (2).

To install a memory module, reverse the removal procedures.

Memory 31

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Contents Maintenance & Service Guide Maintenance & Service Guide About This Book Iv About This Book Table of contents Removal and replacement procedures Appendix B Power cord set requirements Appendix H Statement of Volatility 129 Specifications 130 Product description Front IO Power requirementsCategory Description Internal expansion Ports Rear IOCategory Description Operating system Preinstalled Serviceability End user replaceable partSoftPaq Front components Product featuresRear components Activating and Customizing the Software Activating and customizing the software in WindowsActivating the Windows operating system Downloading Windows 7 updates Installing or upgrading device driversCustomizing the monitor display Click Settings Change PC Settings Downloading Windows 8 updatesIllustrated parts catalog Front bezel Description Spare part number Access panelPower supply , 180W Computer Major ComponentsItem Description Spare part number Cables Description Spare part number Front I/O and USB assembly Misc PartsSpeaker Spare part Description Number DrivesSequential Part Number Listing Description Spare part numberThermal material Illustrated parts catalog Electrostatic discharge information Generating static Preventing electrostatic damage to equipmentRelative Humidity Event 55% 40% 10% Static Shielding Protection Levels Personal grounding methods and equipmentGrounding the work area Recommended materials and equipmentOperating guidelines Routine care General cleaning safety precautionsCleaning the Computer Case Cleaning the keyboardPower supply fan Service considerationsCleaning the monitor Cleaning the mouseHard Drives Cables and connectorsTools and software Requirements ScrewsLithium coin cell battery Serial ATA Hard Drive CharacteristicsSata hard drives Sata data cable Sata hard drive cablesSmart ATA drives Cable managementRemoval and replacement procedures Serviceability featuresPreparation for disassembly Description Spare part number Access panel 674373-001 Access panelDescription Spare part number Front bezel 751588-001 Front bezelDDR3L-SDRAM SODIMMs MemoryDescription Socket Color Insertion Order Populating Dimm socketsRemoving memory modules Expansion cards Page Cable management Cable connections Connector Name Connector Color DescriptionDrives Installing additional drives Drive System Board Label Color System board drive connectionsRemoving an optical drive Removing a hard drive Front I/O and USB panel housing assembly Page Remove the optical drive Removing an optical drive on Power switch/LED assemblyPage Description Spare part number Speaker 751593-001 SpeakerPage Page Power supply Page System board Page Battery Page Computer Setup F10 Utilities Computer Setup F10 UtilityUsing Computer Setup F10 Utilities Computer Setup-File Storage Options Sata Emulation Computer Setup-StorageConfiguration Option Description DeviceBoot Order Shortcut to Temporarily Override Boot OrderDPS Self-test Computer Setup-Security Computer Setup-Power Device Options Computer Setup-AdvancedOption Power-On Options Bios Power-On Onboard Devices Bus OptionsPower cord set requirements Japanese power cord requirementsGeneral requirements Country Accrediting Agency Country-specific requirementsPost Error Messages Control panel message Description Recommended action Post Numeric Codes and Text MessagesControl panel message Description Verify monitor is attached and turned Reseat CPU or chassis fan Drivelock Security. For each listed Change Storage Storage OptionsSata Emulation to IDE, and select File Save Changes and Exit. ReenterAppendix C Post Error Messages If the error persists, update to the latest Bios version and ME firmware version Bios Test Failure Power Speaker Button LEDCmos Password Security and ResettingClearing and Resetting the Cmos Resetting the Password JumperPage Safety and comfort Before you call for technical support Troubleshooting without diagnosticsHelpful hints Page Solving general problems Computer date and time display is incorrect Cause SolutionSelect Control Panel Advanced Device Options There is no sound or sound volume is too low Cause SolutionCannot remove computer cover or access panel Cause Solution Poor performance Cause SolutionUnder Windows System, click Run Go to Start All Programs AccessoriesRun All apps iconOpen the access panel, press the power button, and see Power supply shuts down intermittently Cause Solution Solving power problemsError checking click Check Solving hard drive problemsHard drive error occurs Cause Solution Tools tab. Under Error-checking click Check NowNonsystem disk/NTLDR missing message Cause Solution Disk transaction problem Cause SolutionDrive not found identified Cause Solution Advanced Power-On OptionsComputer seems to be locked up Cause Solution Computer will not boot from hard drive Cause SolutionStorage Boot Order Device ConfigurationCan not write to the media card Cause Solution Solving media card reader problemsBlank screen no video Cause Solution Solving display problemsList, then under Appearance and Personalization Select Adjust screen resolutionDim characters Cause Solution Select ImageControl/ Horizontal Position or Vertical Image is not centered Cause SolutionOut of Range displays on screen Cause Solution Support Certain typed symbols do not appear correct Cause SolutionSolving audio problems Sound cuts in and out Cause SolutionDevice Security System Audio Control Panel, and then select Device Manager Line-in jack is not functioning properly Cause SolutionControl Panel , and then select Device Manager Solving printer problemsPrinter will not print Cause Solution Solving keyboard and mouse problemsPrinter will not turn on Cause Solution Printer prints garbled information Cause SolutionEnter Table E-1Solving Hardware Installation Problems Solving Hardware Installation ProblemsSecurity USB Security Computer will not start Cause Solution102 Appendix E Troubleshooting without diagnostics Solving Network Problems Manager Network status link light never flashes Cause SolutionDiagnostics reports a failure Cause Solution New network card will not boot Cause Solution Solving memory problemsOut of memory error Cause Solution Memory count during Post is wrong Cause SolutionInsufficient memory error during operation Cause Solution Solving processor problems Poor performance is experienced Cause SolutionCause Solution Security Network Boot Solving CD-ROM and DVD problemsCannot eject compact disc tray-load unit Cause Solution Movie will not play in the DVD drive Cause SolutionSolving USB flash drive problems USB flash drive not found identified Cause SolutionSystem will not boot from USB flash drive Cause Solution Solving front panel component problems Solving Internet access problemsUnable to connect to the Internet Cause Solution Click Internet Options Select Start Control PanelROM issue Post error has occurred Solving software problemsVerify that the software is certified by Microsoft for your HP PC Hardware Diagnostics Why run HP PC Hardware DiagnosticsHow to access and run HP PC Hardware Diagnostics Downloading HP PC Hardware Diagnostics to a USB device Creating recovery media and backups System backup and recoveryUsing Reset when the system is not responding Restoring and recovering using Windows toolsRecovery using the Windows recovery USB flash drive Creating recovery media Backing up, restoring, and recovering in WindowsClick All Programs Creating recovery discs Backing up your information System RestoreSystem Recovery when Windows is responding System RecoverySystem Recovery when Windows is not responding Page Select Install now Statement of Volatility MT Specifications SpecificationsCmos IndexInstalling Sata
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