HP 2502AT, 2500, 2186AF, 2183AF, 2182US, 2182AT, 2182AF, 2181AF, 2509 Hard drive problems, Heat problems

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Troubleshooting and Maintenance

Troubleshooting Your Notebook

Hard drive problems

If the notebook hard drive doesn’t spin

•Make sure the notebook has power. If necessary, connect the AC adapter, and make sure it is fully plugged into a power source and into the back of the notebook.

•Remove and reinsert the hard drive.

If the hard disk makes a buzzing or whining noise

•Back up the drive immediately.

•See whether the noise is coming from elsewhere, such as from the fan or a PC Card drive.

If files are corrupted

•Open My Computer, and the disk you want to scan. Select File > Properties. Select the Check Now box under the Error-checking section of the Tools tab.

•Run the virus-scanning program.

•If necessary, you can format the hard disk and reinstall the original factory software using the QuickRestore System Recovery CD.

Heat problems

Your notebook normally gets warm during routine operation.

If the notebook gets abnormally hot

•Always set the notebook on a flat surface, so that air can flow freely around and underneath it.

•Make sure the air vents on the bottom and sides of the notebook are clear.

•Keep in mind that games and other programs that drive CPU usage toward 100 percent can increase the notebook temperature.

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Contents Compaq Notebook Series Reference Guide Reference Guide Second Edition March Part Number Important Safety Information Software Product License Agreement Iv Reference GuideReference Guide Vi Reference Guide Contents Batteries and Power Management Troubleshooting and Maintenance Index Getting Started with Your Notebook Identifying Parts of the Notebook Front panel and right panel componentsCD-ROM, DVD, or other drive Universal serial bus port USB Left panel and back panel components PC Card and CardBus slot and buttons Bottom panel components Identifying Parts of the Notebook Power mode Battery statusStatus lights Hard drive activityIdentifying Parts of the Notebook Setting Up Your Notebook Insert the batteryConnect AC power Connect a phone line Turn on the notebook Set up WindowsHint Basic Operation Default power settings Power mode To enter this mode FunctionStandby -Power Operating Your NotebookTo reset the notebook To change the boot deviceTouchPad on-off button and indicator light To use the TouchPadTo use the function hot keys This hot key Does thisTo use the One-Touch buttons To program a One-Touch buttonTo use the ALT GR key To use the Windows and Applications keysThis key combination Does this Using CDs or DVDs To insert or remove a CD or DVDCould stop responding and you could lose data Onto the spindleTo play DVD movies To create or copy CDsTo set up password protection Securing Your NotebookTo lock your notebook WindowsTo attach a security cable To protect against virusesTo lock the hard drive Hard driveTo protect your hard drive Taking Care of Your NotebookTo maintain your notebook To clean your notebook To safeguard your dataTo extend the life of the display Batteries and Power Management How the notebook manages power automatically Managing Power ConsumptionInformation that was not saved will be lost Changing timeout settings and creating power schemes Unsaved data if the notebook battery runs down completelyUsing Battery Power To check battery statusTo recharge the battery To respond to a low-battery warningTo get the most from your batteries Using Battery Power Modem and Network Connections Using the Modem Your telephone line type prior to connecting your phone lineTo change your modem settings Special restrictions in certain countriesConnecting to a Local Area Network LAN Connecting to an existing wireless network Making Wireless Network Connections select models onlyTo prepare for connections Creating a New Notebook-to-Notebook Network Ad Hoc Individual wireless functions Purchase a license before using the wireless functionTurning on communication and making a connection Turning off communication and ending a connection Making Wireless Bluetooth Connections select models only To turn Bluetooth communication on and offTurning on Bluetooth communication FunctionTo prepare for Bluetooth connections Turning off Bluetooth communicationSharing files with another Bluetooth device FTP To send or receive files using BluetoothSending Outlook data to another Bluetooth device OPP Add-On Devices Connecting PC Cards Connecting External DevicesInserting a PC Card Connecting External Devices These jacks may damage the notebook Audio recorderAudio ports on your notebook Adjusting monitor resolution and other settings Connecting an external monitorTo use an external monitor Using dual display mode To connect an Ieee 1394 device select models onlyUsing the infrared port To connect an infrared device select models onlyPrinting to an infrared printer Transferring files through an infrared connectionTo use a port replicator select models only To dock to the port replicator Corresponding port on the port replicator is ignoredTo undock from the port replicator To install a RAM expansion module Installing Additional RAM MemoryBack of the notebook Installing Additional RAM Memory To remove a RAM expansion module Installing Additional RAM Memory Replacing the Hard Drive To replace the hard driveTo replace the hard drive holder To prepare a new hard drive Troubleshooting and Maintenance Troubleshooting Your Notebook Audio problemsIf no sound is audible If sound does not recordCD-ROM and DVD problems If you can’t boot from a CD or DVDIf you get a Region Code error when playing a DVD movie If a DVD plays erraticallyDisplay problems Hard drive problems Heat problemsInfrared problems Keyboard and pointing device problemsLocal area network LAN problems If a PS/2 scroll mouse doesn’t workIf the built-in network adapter doesn’t connect to the LAN If you can’t log in to Netware serversMemory problems Modem problemsIf the modem doesn’t dial or no dial tone is detected If the modem dials incorrectlyIf the modem dials but doesn’t connect If the modem isn’t detectedIf the modem causes an Error message If the modem dials but you can’t hear itIf the modem connects, but transferred data is bad If the modem doesn’t faxPC Card Pcmcia problems Performance problemsPower and battery problems If the notebook stops respondingIf the notebook turns off immediately after it turns on If the notebook keeps beepingIf the Time Remaining for the battery is not correct If the battery does not chargeIf the notebook has a short operating time Printing problems Serial, parallel, and USB problems If a serial mouse doesn’t workIf a serial modem does not work properly If the serial or parallel port is not workingStartup problems Wireless problems If you have problems with wireless 802.11 communicationIf your notebook cannot detect a certain Bluetooth device If your notebook cannot detect any Bluetooth devicesIf you can connect, but the network is slow Configuring the Notebook To run the Bios Setup utilitySetting Description Default Main MenuSecurity Menu To change video memory settings using Bios Setup utility Reinstalling and Updating Software To replace a damaged QuickRestore System Recovery CDReference Information Modem Reference Information Command ConexantModem Reference Conexant G,h,i G,h +MCR ECC Commands AT* Commands +FMRRegister Function Conexant Range/units Default Code MeaningPower cords Safety InformationCountry or Region Rated Voltage and Current Battery safety Laser safetyLED safety Mercury safetyExposure to radio frequency radiation Regulatory Information Connections to Peripheral DevicesRegulatory Information Canada Declaration of Conformity U.S.AResponsible Party Trade nameEuropean Union Regulatory Information Japan Japan Telecommunications ApprovalNew Zealand Conexant AMC20493-KT5 Data Fax Modem PTC 211/02/071Russia International EMC Index QuickRestore System Recovery USB
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2547EA, 2552AI, 2541AH, 2543AH, 2542EA specifications

The HP 2135US is a versatile all-in-one desktop computer designed to meet the needs of home and small office users. This robust machine is particularly attractive for individuals who seek a blend of performance, aesthetics, and user-friendly features.

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To sum up, the HP 2135US represents a blend of performance, connectivity, and design sophistication. Its comprehensive set of features makes it an excellent choice for users seeking an all-in-one solution for both work and play, proving itself to be a worthy addition to any modern workspace or home office setup.
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