Dell 2500 manual Troubleshooting the Basic I/O Functions, Troubleshooting a Serial I/O Device

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2. Press and release each key on the keyboard.

If the keyboard and its cable appear to be free of physical damage, and the keys work, go to step 4.

If the keyboard or its cable are damaged, continue to step 3.

3. Swap the faulty keyboard with a working keyboard.

If the problem is resolved, the keyboard must be replaced. See "Getting Help," for instructions on obtaining technical assistance. 4. Run the keyboard test in the Dell Diagnostics.

If you can use the keyboard to select the keyboard test, go to step 6.

If you cannot use the keyboard to select the keyboard test, continue to step 5.

5.Swap the faulty keyboard with a working keyboard.

6.Did the keyboard test run successfully?

If the problem is resolved, the keyboard must be replaced. If the problem is not resolved, the keyboard controller on the system board is faulty. See "Getting Help," for instructions on obtaining technical assistance.

Troubleshooting the Basic I/O Functions

Problem

•A system error message indicates an I/O port problem

•A device connected to the port does not function properly

Action

1.Enter the System Setup program, and check the Serial Port 1, Serial Port 2, and Parallel Port settings. If the communications ports are set to Enabled, go to step 3.

If the communications ports are not set to Enabled, continue to step 2.

2.Change the Serial Port 1, Serial Port 2, and Parallel Port settings to Enabled; then reboot the system.

3.Check the system setup. See "Using the System Setup Program" in the User's Guide for instructions.

If the system setup is correct, go to step 5.

4.Change the necessary statements in the system setup. If the port problem is confined to a particular application program, see the application program's documentation for specific port configuration requirements.

5.Reboot the system from the diagnostics diskette, and run the serial ports test and/or the parallel ports test in the Dell Diagnostics.

If the tests did not run successfully, see "Getting Help," for instructions on obtaining technical assistance.

6.If the problem persists, see one of the following procedures, "Troubleshooting a Parallel Printer" or "Troubleshooting a Serial I/O Device," depending on the malfunctioning device.

Troubleshooting a Serial I/O Device

Problem

•Device connected to one of the serial ports is not working

Action

1.Turn off the system and any peripheral devices connected to the serial ports. If there is only one serial device connected to the system, go to step 4.

2.Disconnect the devices from the serial ports, and connect the malfunctioning device to the other port.

3.Turn on the power to the system.

If the problem is resolved, the serial port may be defective. See "Getting Help," for instructions on obtaining technical assistance.

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Contents Initial release January Jumpers-A General Explanation Jumpers and ConnectorsSystem Board Jumpers JumpersScsi Backplane Board Connectors System Board ConnectorsJumper Setting Description Disabling a Forgotten Password Interposer Board ConnectorsBack to Contents Abbreviations and Acronyms Celsius Adjusted decibels Direct currentCold cathode fluorescent tube Compact disc Compact disc read-only memoryDynamic random-access memory Direct memory accessError checking and correction Expanded Memory SpecificationEnhanced small-device interface Electrostatic dischargeEmbedded server management Fahrenheit File allocation tableIntegrated drive electronics IdentificationInterrupt request Industry-Standard ArchitectureLow voltage differential Meters Milliamperes Master boot recordMilliampere-hours Megabytes Megabits Megabits per secondPower-on self-test Nonvolatile random-access memoryPower-supply distribution board Nickel-metal hydrideRandom-access memory digital-to-analog converter Random-access memoryResource Configuration Utility Synchronous dynamic random-access memorySystem setup utility Static random-access memoryUninterruptible power supply Universal Service Ordering Code VoltsWatt-hours EXtended Memory SpecificationExtended memory manager Zero insertion forceIntroduction Safety, Regulatory, and Warranty InformationOther Documents You May Need Getting HelpBack to Contents Bezel Indicators Indicators, Messages, and CodesFront-Panel Indicators and Features Scsi Hard-Disk Drive Indicator Codes Back-Panel FeaturesCondition Indicator Code Redundant Power Supply FeaturesAll three drive status indicators are off Drive failedSystem Messages Indicator Indicator CodeMessage Cause Corrective Action Diskette drive From a bootable diskette Nvramclr jumper is Nonbootable diskette is preventing the system from bootingInstalled Using the System Setup Program, in the Users Guide forKeyboard cable connector loose or FaultyFaulty application Restart the application Faulty diskette, diskette/CD-ROMTroubleshooting Your System Faulty diskette or hard-disk driveDefective battery or faulty chip Incorrect Time or Date settings orCode Cause Corrective Action System Beep CodesAlert Log Messages From the Dell OpenManage Server Agent Diagnostics MessagesPage Installing and Configuring Software Finding Software SolutionsUsing Software IRQ Line Used By/Available Avoiding Interrupt Assignment ConflictsFeatures of the Dell Diagnostics Running the Dell DiagnosticsWhen to Use the Dell Diagnostics Starting the Dell DiagnosticsHow to Use the Device Groups Menu How to Use the Dell DiagnosticsDevice Groups Menu Options Run TestsConfig Error MessagesSelect Safety First-For You and Your System Troubleshooting Your SystemChecking Specific System Problems External ConnectionsSystem Orientation Start-Up RoutineRemoving and Replacing the Front Bezel Look/Listen for ActionRemoving the Front Bezel Removing and Replacing the System CoverReplacing the Front Bezel Removing the System CoverTroubleshooting the Keyboard Troubleshooting the Video SubsystemChecking the Equipment Replacing the System CoverTroubleshooting a Serial I/O Device Troubleshooting the Basic I/O FunctionsDevice connected to one of the serial ports is not working Troubleshooting a USB Device Troubleshooting a Parallel PrinterTroubleshooting the Integrated NIC Parallel printer is not workingNIC cannot communicate with net Inside the SystemTroubleshooting a Damaged System Troubleshooting a Wet SystemResponding to a Dell OpenManage Server Agent Alert Message Liquid spills Splashes Excessive humidityTroubleshooting Redundant Power Supplies Troubleshooting the System BatteryTroubleshooting a Cooling Fan Removing a Cooling Fan Troubleshooting Expansion CardsFaulty memory module Faulty system board Troubleshooting System MemoryTroubleshooting the System Board Troubleshooting the Video SubsystemTroubleshooting the Diskette Drive Error message indicating a system board problemTroubleshooting an External Scsi Tape Drive Troubleshooting a CD-ROM Drive¡ Hard drive failure indicator on the control panel lights Troubleshooting Hard-Disk DrivesTroubleshooting a RAID Controller Card Troubleshooting an Integrated RAID ControllerBack to Contents Connector or Socket Description Installing System Board OptionsRAID battery connector System battery connectorReplacing the Front Fan Assembly Removing the Front Fan AssemblyRemoving and Replacing Fan Assemblies Replacing the Back Fan Assembly Removing the Back Fan AssemblyRemoving and Replacing Individual Fans Expansion Cards Installing an Expansion CardRemoving an Expansion Card Removing and Installing the Cooling ShroudRemoving the Cooling Shroud Installing the Cooling Shroud Removing and Installing a Power SupplyMemory Module Installation Guidelines Memory Upgrade KitsAdding Memory Total Desired Memory Performing a Memory Upgrade128 MB 64 MB None 256 MB 512 MB Removing Memory Modules Installing Memory ModulesAdding or Replacing a Microprocessor Microprocessor UpgradesUnpack the new microprocessor Maintain proper thermal conditions14. Pin-1 Identification 17. Installing the VRM Activating the Integrated RAID Controller 18. Installing the RAID Controller Memory ModuleRemoving the RAID Battery Installing the RAID BatteryReplacing the System Battery 21. Installing the Battery Installing the Peripheral Bay Installing DrivesRemoving the Peripheral Bay Interface Cables Scsi Configuration InformationScsi ID Numbers Device TerminationInstalling a Tape Drive That Uses a Controller Card Installing Scsi Hard-Disk Drives Connecting an External Scsi Tape DriveInstalling the Tape Drive Before You BeginRemoving a Scsi Hard-Disk Drive Installing a Scsi Hard-Disk DriveInstalling a Scsi Backplane Daughter Card Installing a Dell Host Adapter CardInstalling a Scsi Backplane Board Daughter Card Configuring the Boot DeviceHelp Overview Getting HelpTechnical Assistance Help ToolsAutoTech Service Problems With Your OrderBefore You Call Dell Contact NumbersAustria Vienna Country Code City Code Australia SydneyWebsite http//support.euro.dell.com Belgium BrusselsChina Xiamen Chile SantiagoDenmark Horsholm 009Hong Kong Germany LangenIreland Cherrywood Italy Milan Home and Small BusinessLatin America Website http//support.jp.dell.com Korea SeoulLuxembourg MacauNorway Lysaker New ZealandPoland Warsaw PortugalSwitzerland Geneva Sweden Upplands VasbyTaiwan ThailandBack to Contents Back to Contents Figures Tables

2500 specifications

The Dell 2500 is a remarkable embodiment of innovation in the world of computing. Renowned for its robust performance and versatility, the Dell 2500 caters to a wide array of users, from businesses to educational institutions, and even casual home users. Equipped with cutting-edge features and technologies, it stands out in the competitive market of laptops and desktops.

At the core of the Dell 2500 is its powerful processor options. Users can choose from various Intel Core i5 and i7 configurations, ensuring that they have the computing power required for demanding applications, multitasking, and intensive workloads. The speed and reliability of these processors are complemented by ample RAM, which ranges between 8GB and 16GB, optimizing performance during intense usage scenarios such as gaming, video editing, or data analysis.

One of the key characteristics of the Dell 2500 is its stunning display. Featuring a Full HD (1920 x 1080) resolution, the laptop or desktop’s screen delivers vivid colors and sharp images. This visual clarity is further enhanced by LED backlighting, which not only brightens the display but also improves energy efficiency, making the device suitable for both work and entertainment.

Another noteworthy aspect of the Dell 2500 is its storage solutions. Equipped with high-speed SSDs, users enjoy quick boot times, faster data access, and improved overall system responsiveness. The Dell 2500 offers different storage capacities, allowing users to choose a configuration that meets their needs without sacrificing performance.

In terms of connectivity, the Dell 2500 features a wide array of ports, including USB Type-C, USB 3.0, HDMI, and Ethernet, ensuring that users can connect to versatile peripherals and networks seamlessly. Additionally, the laptop offers Wi-Fi 6 capabilities, providing lightning-fast wireless connectivity, which is crucial for users who rely on cloud-based applications and streaming services.

Security features on the Dell 2500 include biometric options such as a fingerprint reader, alongside traditional password protection to safeguard user data. With diverse customization options, users can tailor the device to their specific use cases, ensuring a personalized experience.

In summary, the Dell 2500 combines powerful performance, stunning visuals, ample storage, extensive connectivity options, and robust security measures to cater to a diverse range of users. Its thoughtful design and innovative technologies make it a top contender in today’s computing landscape, ensuring that it meets the demands of modern work and play.
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