Dell A840, A860 manual Memory Problems

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Troubleshooting

Ensure that the processor power cable is securely connected to the system board power connector (see your Service Manual at support.dell.com).

Ensure that the main power cable and the front panel cable are securely connected to the system board connector (see your Service Manual at support.dell.com).

E L I M I N A T E I N T E R F E R E N C E Some possible causes of interference are:

Power, keyboard, and mouse extension cables

Too many devices connected to the same power strip

Multiple power strips connected to the same electrical outlet

Memory Problems

CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.

I F Y O U R E C E I V E A N I N S U F F I C I E N T M E M O R Y M E S S A G E

Save and close any open files and exit any open programs you are not using to see if that resolves the problem.

See the software documentation for minimum memory requirements. If necessary, install additional memory (see your Service Manual at support.dell.com).

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Contents Vostro A840/A860 Setup Quick Reference Guide Macrovision Product Notice Contents Finding Information Dell Support Center Reinstalling SoftwareRestoring Your Operating System Obtaining AssistanceIndex Contents About Your Computer Front ViewAttach headphones to the connector Attach a microphone to Right ViewTurns on when the scroll lock function is enabled D E M C O N N E C T O R RJLeft View USB C O N N E C T O R SConnects video devices, such as a monitor Battery Removal To remove the battery Ensure that the computer is turned off About Your Computer Quick Setup Quick SetupConnect the AC adapter to the AC adapter Connecting to the Internet Setting Up Your Internet ConnectionMicrosoft Windows Vista Operating System Choose Dial-up if you will use a dial-up modem or IsdnTransferring Information to a New Computer Quick Setup Specifications 512 MB, 1 GB, 2 GB GB capable Memory type DDR2 SodimmVideo Hole connector Ieee Pin mini USBWireless In-1 combo card connectorConnector Cards supported Internal Wlan and Bluetooth wirelessVideo Vostro A840 Vostro A860 Video type Microphone-in connector, stereoHeadphones/speakers connector Integrated on system board, hardware206 mm 8.11 inches 209.5 mm 8.24 inches Active area X/Y 303.36 x 344.23 x DimensionsAudio Vostro A840 Vostro A860 Speaker One 4-ohm speaker 320 mm 12.6 inches 359.3 mm 14.14 inches40/40 15/30 Pixel pitch 2373 255 Power ConsumptionDisplay Vostro A840 Vostro A860 Viewing angles Max with no inverter lossesSize Touch Pad Vostro A840 Vostro A860240 cpi 53.4 mm 2.10 inches40 to 65C -40 to 149F Coin-cell battery CR-2032 To 35C 32 to 95FInput frequency 50-60 Hz Output current Continuous Output power 65 W Rated output voltage137.2 mm 5.4 inches Weight with cables Kg 0.9 lb +/-1.0 VDCPhysical Vostro A840 Vostro A860 Height AC Adapter Vostro A84003 kg 4.47 lb 46 kg 5.42 lb 110 G Spectrum that simulates user environmentGrms 163 G Airborne containment level G2 or lower as defined byTroubleshooting Error MessagesDo not use these characters in filenames T E N D E D M E M O R Y S I Z E H a SHARD-DISK Drive Controller Failure Y B O a R D C L O C K L I N E F a I L U R E For Troubleshooting Optional ROM has failed. Contact Dell see Contacting Dell on Try again System Messages Troubleshooting Software and Hardware Problems A.R.T error, possible hard drive failureDell Diagnostics When to Use the Dell Diagnostics Starting the Dell Diagnostics From Your Hard DriveInsert the Drivers and Utilities media Shut down and restart the computerPower Problems Troubleshooting TipsFollow these tips when troubleshooting your computer Ensure that the display is connected and powered on T H E P O W E R L I G H T I S B L I N K I N GMemory Problems Run the Dell Diagnostics see Dell Diagnostics on Lockups and Software Problems Computer does not start upComputer stops responding Program crashes repeatedly Program stops respondingSolid blue screen appears Dell Technical Update Service Other software problemsDell Support Center Alerts technical support alerts relevant to your computer Drivers Reinstalling SoftwareReinstalling Drivers and Utilities Identifying DriversUsing the Drivers and Utilities Media Click the Drivers tab→ Roll Back DriverManually Reinstalling Drivers You can restore your operating system in the following ways Using Microsoft Windows System RestoreRestoring Your Operating System Click Next and follow the remaining prompts on the screen Using the Operating System MediaClick Start Click Undo my last restoration and click NextReinstalling Windows Reinstalling Software Reinstalling Software Finding Information Document/Media/Label ContentsCode Service Tag/Express Computer Drivers and Utilities MediaThis type of information may CD or DVD that may have Shipped with your computerSupport Documentation Have shipped with yourDocument/Media/Label Contents Dell Technology Guide Available at support.dell.comFinding Information Getting Help Fill out the Diagnostics Checklist onObtaining Assistance Technical Support and Customer Service Online ServicesAutoTech Service Automated Order-Status Service Problems With Your OrderReturning Items for Warranty Repair or Credit Product InformationRemember to fill out the Diagnostics Checklist Before You CallGetting Help Contacting Dell Getting Help Index License label Media Drivers and Utilities Service Tag Setup Power light conditions, 44 program crashes Warranty information Windows License label Windows Vista Program Compatibility wizard WizardsIndex