HP C399XX, C310EA, C307NR, C310EU, C306US, C303NR Removing the Fan/Heat Sink Assembly Screws, Part

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Removal and Replacement Procedures

2.Turn the system board right side up with the USB ports toward you.

3.Remove the Phillips PM2.0×4.0 screw that secures the fan/heat sink assembly to the system board.

Removing the Fan/Heat Sink Assembly Screws, Part 1

5–60

Maintenance and Service Guide

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Contents Maintenance and Service Guide Page Contents Illustrated Parts Catalog Removal and Replacement Procedures Contents Product Description Features Product Description Resetting the Computer Power Management External Components Front Components Component FunctionRight-Side Components Right-Side Components Left-Side Components Rear Panel Components Standard Keyboard Components Standard Keyboard Components Fn keyTop Components Top Components TouchPad Components Bottom Components Bottom Components Bottom Components Design Overview Troubleshooting Setup UtilityUsing the Setup Utility Changing the Language of the Setup UtilityNavigating and Selecting in the Setup Utility Restoring Default Settings Setup Utility Closing the Setup Utility Security Menu Setup Utility MenusMain Menu Select To Do ThisSelecting from the System Configuration Menu System Configuration MenuSelecting from the Diagnostics Menu Troubleshooting Flowcharts Troubleshooting Flowcharts OverviewFlowchart 2.14-No OS Loading, Optical Drive Flowchart 2.1-Initial Troubleshooting Flowchart No Power PartFlowchart 2.2-No Power, Part Flowchart 2.3-No Power, Part Flowchart 2.4-No Power, Part ExternalFlowchart 2.5-No Power, Part Flowchart 2.6-No Video, Part Flowchart 2.7-No Video, Part Flowchart No Video PartFlowchart 2.8-Nonfunctioning Docking Device if applicable Reseat power Cord in docking Device Power outletFlowchart 2.9-No Operating System OS Loading Flowchart 2.10-No OS Loading, Hard Drive, Part LoadingFlowchart 2.11-No OS Loading, Hard Drive, Part Flowchart No OS Loading Hard Drive, PartFlowchart 2.12-No OS Loading, Hard Drive, Part Flowchart 2.13-No OS Loading, Diskette Drive Flowchart 2.14-No OS Loading, Optical Drive Flowchart 2.15-No Audio, Part Flowchart 2.16-No Audio, Part Flowchart 2.17-Nonfunctioning Device CmosFlowchart 2.18-Nonfunctioning Keyboard Flowchart 2.19-Nonfunctioning Pointing Device Pointing device Not operating Properly Connect computerFlowchart 2.20-No Network/Modem Connection Illustrated Parts Catalog Serial Number LocationComputer Major Components Item Description Number Switch coversSpare Parts Computer Major Components KeyboardsComputer Major Components Description Number Display release button assembly not illustratedSpare Part Top coverComputer Major Components Speakers Cell, 4.0-Amp hour batteryDescription Number Plastics Kit Base enclosureComputer Major Components Memory modules, 1-DIMM Item Description Number Optical drivesMini Card modules Computer Major Components Item Description Number Mini Card modules Computer Major Components Spare Parts Computer Major Components Display Assembly Subcomponents Inch, Wxga with BrightView Display Item Description Display Plastics KitDisplay inverter board Display Label Kits not illustratedPlastics Kit Spare Part Number Information Plastics KitItem Description Number Plastics Kit Cable Kit Spare Part Number Information Cable KitDescription Number Cable Kit Mass Storage Devices Mass Storage Devices Spare Part Number Information Miscellaneous Not Illustrated Miscellaneous Not Illustrated Spare Part InformationDescription Number Power cords Appendix A, Screw Listing, for more information onSequential Part Number Listing Sequential Part Number ListingSpare Part Number Description United Arab Sequential Part Number Listing Sequential Part Number Listing Sequential Part Number Listing 430533-001 Display Cable Kit Sequential Part Number Listing 100-GB, 5400-rpm hard drive includes bracket and connector 436188-001 Top cover Removal and Replacement Preliminaries Tools RequiredService Considerations Plastic PartsPreventing Damage to Removable Drives Preventing Electrostatic Damage Packaging and Transporting Precautions Workstation Precautions Use the following grounding precautions at workstationsGrounding Equipment and Methods Relative Humidity Event 10% 40% 55% Typical Electrostatic Voltage LevelsStatic-Shielding Materials Material Use Voltage Protection LevelRemoval and Replacement Procedures Serial Number Disassembly Sequence Chart Disassembly Sequence Chart# of Screws Removed Optical Drive Preparing the Computer for Disassembly Battery Spare Part Number InformationReverse the above procedure to install the battery Hard Drive Hard Drive Spare Part Number InformationRemoving the Hard Drive Removing the Hard Drive Bracket Computer Feet Memory Module Memory Module Spare Part Number InformationRemoving the Memory/Mini Card Module Compartment Cover Reverse the above procedure to install a memory module Mini Card Module Mini Card Module Spare Part Number InformationMini Card Module Spare Part Number Information Reverse the above procedure to install a Mini Card module RTC Battery RTC Battery Spare Part Number InformationOptical Drive Optical Drive Spare Part Number InformationRemoving the Optical Drive Reverse the above procedure to install an optical drive Switch Cover Switch Cover Spare Part Number InformationReverse the above procedure to install the switch cover Keyboard Keyboard Spare Part Number InformationReleasing the Keyboard Removing the Keyboard Display Assembly Display Assembly Spare Part Number InformationRemoval and Replacement Procedures Disconnecting the Display and Wireless Antenna Cables Removing the Display Assembly Display Assembly Subcomponents Spare Part Number Information Removing the Display Bezel Screws Removing the Display Bezel Disconnecting the Display Panel Cables Removing the Display Hinge Base Covers Removing the Display Panel and Inverter Board Removing the Display Hinge Covers Removing the Display Release Hook Removing the Display Hinges Removing the Wireless Antenna Transceivers and Cables Base Enclosure Base Enclosure Spare Part Number InformationRemoval and Replacement Procedures Removing the Base Enclosure Screws, Part Removing the Base Enclosure Screws, Part Reverse the above procedure to install the base enclosure System Board System Board Spare Part Number InformationDisconnecting the LED Board Cable Removing the Power Connector Cable Removing the Modem Connector Cable Removing the USB/Audio Board Removing the System Board Disconnecting the USB/Audio Board, Speaker, Modem Cables Reverse the above procedure to install the system board Display Release Button Assembly Removing the TouchPad Cable Removing the TouchPad Bracket Removing the Display Release Button Assembly LED Board LED Board Spare Part Number InformationReverse the above procedure to install the LED board 17 Fan/Heat Sink Assembly Fan/Heat Sink Assembly Spare Part Number InformationRemoving the Fan/Heat Sink Assembly Screws, Part Removing the Fan/Heat Sink Assembly Screws, Part Removing the Fan/Heat Sink Assembly Screws, Part Removing the Fan/Heat Sink Assembly Replacing the Thermal Paste Processor Processor Spare Part Number InformationReverse the above procedure to install the processor Input Power Dimensions MetricWeight TemperatureShock Relative humidity noncondensingMaximum altitude unpressurized Random VibrationInch, WXGA, Display Hard Drives 80-GB 60-GB 40-GB Dimensions DVD/CD-RW Combo Drive Level Cache buffer Data transfer rate Access timeAudio output Startup timeDVD±RW and CD-RW Double-Layer Combo Drive DVD-RWDVD System Interrupts Hardware IRQ System FunctionIRQ11 System I/O Addresses Address hex16F Unused VGA System Memory Map Size Memory Address System FunctionSystem DMA Hardware DMA System FunctionScrew Listing Table A-1 Phillips PM2.5×5.0 Captive Screw Where usedHead Color Qty. Length Thread Width Table A-2 Phillips PM3.0×4.0 Screw Color Qty Length Thread Width Black Where usedHead Table A-3 Phillips PM2.5×5.0 Screw Phillips PM2.5×5.0 Screw Locations Table A-3 Phillips PM2.5×5.0 Screw Table A-3 Phillips PM2.5×5.0 Screw Table A-3 Phillips PM2.5×5.0 Screw Table A-3 Phillips PM2.5×5.0 Screw Table A-3 Phillips PM2.5×5.0 Screw Table A-3 Phillips PM2.5×5.0 Screw Table A-3 Phillips PM2.5×5.0 Screw Table A-3 Phillips PM2.5×5.0 Screw Table A-3 Phillips PM2.5×5.0 Screw Color Qty Length Thread Width Silver Where used Table A-4 Phillips PM2.0×3.0 ScrewTable A-5 Phillips PM2.0×4.0 Screw Table A-5 Phillips PM2.0×4.0 Screw Phillips PM2.0×4.0 Screw Location Color Qty Length Thread Width Black 13.0 mm Where used Table A-6 Phillips PM2.5×13.0 ScrewTable A-6 Phillips PM2.5×13.0 Screw Table A-6 Phillips PM2.5×13.0 Screw Table A-7 Phillips PM2.5×9.0 Screw Table A-8 Phillips PM2.5×7.0 Screw Table A-8 Phillips PM2.5×7.0 Screw Table A-9 Silver Phillips PM2.5×4.0 Screw Table A-10 Phillips PM3.0×6.0 Screw Backup and Recovery Recovering System InformationBacking Up Your Information Using System Restore Points Creating Recovery Discs Restore to a Previous Date and TimeBackup and Recovery Reinstalling Software Programs and Drivers Reinstalling Preinstalled Programs and DriversPerforming a Recovery Reinstalling Programs from DiscsRecovering from the Recovery Discs Deleting the Recovery Partition on the Hard Drive Select Start All Programs System Recovery PC RecoveryUpdating Reinstalled Software » Select Start Help and SupportDisplay Component Recycling Display Component Recycling Removing the Display Bezel Screw Covers and Screws Removing the Display Bezel Removing the Display Inverter Board Removing the LCD Panel Removing the LCD Panel Frame Screws Removing the LCD Panel Frame Removing the Backlight Cover Releasing the Backlight Cables Removing the Backlight Frame Slide the backlight out of the backlight frame Releasing the LCD Panel Remove the LCD panel Pin Signal Table D-1 Audio-Out HeadphoneTable D-2 Audio-In Microphone Table D-3 Universal Serial BusTable D-4 Video-Out TV-CDTable D-5 External Monitor Table D-6 RJ-11 Modem Table D-7 RJ-45 Network Power Cord Set Requirements Conductor Power Cord SetGeneral Requirements Country-Specific Requirements Conductor Power Cord Set RequirementsCountry/Region Accredited Agency Applicable Note Number Kema Index Index Index-3 Index-4 Troubleshooting 2-18,2-27num lock key Index-6 Index-7 TV tuner remote control, spare part number 3-20,3-27
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C318LA, C310EU, C350EU, C302NR, C300EU specifications

The HP C305LA, C310EA, C399XX, C300, and C303NR are part of HP's diverse lineup of laptops, catering to different user needs with their unique features and specifications. Each model offers a blend of power, performance, and portability, making them suitable for various applications, from casual use to more demanding tasks.

Starting with the HP C305LA, this model is a well-rounded laptop that targets the everyday user with solid performance and reliable functionality. It features a powerful Intel processor, ensuring that multitasking and routine applications run smoothly. With its vibrant display and integrated graphics, the C305LA is suitable for streaming media and light gaming. Additionally, it boasts a durable design, making it an excellent choice for students and professionals who require a dependable machine for daily use.

Next, the HP C310EA brings a bit more to the table with its enhanced specifications. It is equipped with an upgraded processor, providing users with faster performance and improved efficiency. The C310EA also features an ergonomic keyboard and a spacious touchpad, providing an enhanced user experience for both typing and navigation. With its increased storage capacity, users can store their files, documents, and media without worrying about running out of space.

The C399XX stands out with its sleek design and portability. This model is ideal for users on the go, featuring a lightweight chassis and a dependable battery life. Performance-wise, the C399XX comes with advanced technology that supports robust applications, thus catering to creative professionals and casual users alike. The high-definition display ensures clear and vibrant visuals, making it perfect for multimedia consumption.

Meanwhile, the HP C300 is tailored for budget-conscious consumers who still require functionality. Equipped with essential features, the C300 is designed for basic tasks like web browsing, document editing, and media playback. Its compact design makes it easy to take anywhere, while its reliable performance ensures that common usage scenarios are adequately covered.

Finally, the HP C303NR offers a balance of performance and affordability, making it a great option for students and families. This model provides good processing power coupled with sufficient RAM, allowing for smooth operation of everyday software. The C303NR's long-lasting battery life appeals to users who require extended usability without frequent recharging.

In conclusion, the HP C305LA, C310EA, C399XX, C300, and C303NR each present a variety of features tailored to meet diverse user needs. Whether for personal, educational, or professional use, these models highlight HP's commitment to providing reliable and innovative computing solutions.