Front I/O, Power Switch Assembly | HP Pro 4300 manual

Front I/O, Power Switch Assembly

Description	Spare part number

Front I/O and power switch assembly	636926-001

The front I/O and power switch/LEDs are one assembly, attached to the front of the chassis. Push the assembly into the chassis to remove.

1.Prepare the computer for disassembly (Preparation for Disassembly on page 48).

2.Remove the access panel (Computer Access Panel on page 50).

3.Remove the front bezel (Front Bezel on page 51).

4.Remove the chassis fan (Front Fan Assembly on page 81).

5.Rotate the drive cage to its upright position.

6.Disconnect the four cables from the system board as follows:

●Yellow connector labeled FRONT USB1

●Green connector labeled FRONT USB2

●Blue connector labeled FRONT AUD

●Black connector labeled PB/LED

7.Remove the screw that secures the assembly to the front of the chassis. Figure 7-44Removing the front I/O, power switch/LED assembly screw

82 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

Image 90

HP Pro 4300 manual Front I/O, Power Switch Assembly, Remove the chassis fan Front Fan Assembly on

Contents

Maintenance and Service Guide HP Compaq Pro 4300 Small Form Factor Business PC About This Book Table of contents Smart ATA Drives 101 107 163 Product Features Standard Configuration Features Front Panel Components 1Front Panel Components Rear Panel Components 2Rear Panel Components 4Serial Number and Product ID Location Product Features Serial Number Location 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 Downloading Windows 8 updates Click Settings Change PC Settings Computer Setup F10 Utility Computer Setup F10 Utilities Using Computer Setup F10 Utilities 1Computer Setup F10 Utility Computer Setup-File 2Computer Setup-File Sata Defaults Computer Setup-Storage3Computer Setup-Storage OptionDescription Sata Emulation Removable Media BootStorage Options ESATA Port Max eSATA Speed Boot Order Shortcut to Temporarily Override Boot OrderDPS Self-Test Computer Setup-Security 4Computer Setup-Security Slot Security Network BootMaster Boot Record System IDs System Security Secure Boot ConfigurationDriveLock Security Computer Setup-Power 5Computer Setup-Power Computer Setup-Advanced 6Computer Setup-Advanced for advanced usersOption Heading Power-On Options Bus Options Bios Power-OnOnboard Devices Device Options Recovering the Configuration Settings VGA ConfigurationAMT Configuration Sata Hard Drives Serial ATA Sata Drive Guidelines and FeaturesSerial ATA Hard Drive Characteristics Sata Hard Drive Cables Smart ATA Drives Chassis Designations Small Form Factor SFF Preventing Electrostatic Damage to Equipment Electrostatic Discharge InformationGenerating Static Relative Humidity Event 55% 40% 10% Recommended Materials and Equipment Personal Grounding Methods and EquipmentGrounding the Work Area Static Shielding Protection Levels Operating Guidelines Cleaning the Keyboard General Cleaning Safety PrecautionsCleaning the Computer Case Routine Care Cleaning the Mouse Service ConsiderationsCleaning the Monitor Power Supply Fan Screws Cables and ConnectorsTools and Software Requirements Hard Drives Lithium Coin Cell Battery Illustrated parts catalog Spare partsComputer major components Heat sink includes replacement thermal material Description Spare part number Access panelPower supply Front I/O and power switch assembly Expansion cards Description Spare part numberOptical drives Keyboard Mouse Sequential part number listing Spare parts Illustrated parts catalog Spare parts Illustrated parts catalog Spare parts Illustrated parts catalog Spare parts Illustrated parts catalog Spare parts Illustrated parts catalog Spare parts Preparation for Disassembly 1Serial Number and Product ID LocationPage Computer Access Panel Description Spare part number Access panel 636924-001 Front Bezel Description Spare part number Front bezel 695080-001 Bezel Blanks System Board Connector System Board Label Color Component System Board Connections1System Board Connections Installing Additional Memory DIMMsDDR3-SDRAM DIMMs Installing DIMMs Populating Dimm SocketsPage Removing or Installing an Expansion Card Graphics cards for models with WindowsOther boards Remove the access panel Computer Access Panel on Page Page Page Page Page Cable Management Drives Description Spare part number Optical drivesDrive cables Installing and Removing Drives Drive Positions2Drive Positions 3Extra Mounting Screws Mounting Screw Device Removing an Internal 5.25-inch Drive Rotate the drive cage back down to its normal position Installing an Optical Drive into the 5.25-inch Drive Bay 24Connecting the Power and Data Cables Drives Removing an Internal 3.5-inch Drive Page Installing a Drive into the 3.5-inch Internal Drive Bay 33Rotating the Drive Cage Down Drives Page 36Raising the Power Supply Drives Page Page Baffle Description Spare part number Baffle 636921-001 Front Fan Assembly Description Spare part number Front fan assembly 636922-001 Front I/O, Power Switch Assembly Remove the chassis fan Front Fan Assembly on Speaker Description Spare part number Speaker 636925-001 Heat sink Description Spare part number Heat sink 636919-001 47Removing the heat sink screws Heat sink Page Processor Page Power Supply Pwrcmd 4Power supply cable system board connector Power supply connector label System board connector System Board Page Battery Type 1 Battery Holder Type 2 Battery Holder Type 3 Battery Holder Using the Small Form Factor Computer in a Tower Orientation Installing a Security Lock HP/Kensington MicroSaver Security Cable Lock Padlock Front Bezel Security Page Power Cord Set Requirements Japanese Power Cord RequirementsGeneral Requirements Country-Specific Requirements Country Accrediting Agency Post Error Messages Control panel message Description Recommended action Post Numeric Codes and Text MessagesTable B-1Numeric Codes and Text Messages Test under Storage DPS Self-test Table B-2Diagnostic Front Panel LEDs and Audible Codes Activity Blinks Possible Cause Activity Blinks Possible Cause Recommended Action Troubleshooting Without Diagnostics Safety and Comfort Before You Call for Technical Support Helpful Hints Refer to Helpful Hints on page 108 in this guidePage Computer date and time display is incorrect Cause Solution Solving General ProblemsTable C-1Solving General Problems Computer will not respond to keyboard or mouse Cause Poor performance Cause Solution There is no sound or sound volume is too low Cause SolutionCannot remove computer cover or access panel Cause Advanced Device Options All apps icon Under Windows System, click Run Cause Solution Solving Power Problems Table C-2Solving Power ProblemsPower supply shuts down intermittently Cause Solution Some models, is set to the appropriate voltage. Proper Solving Hard Drive Problems Table C-3Solving Hard Drive Problems Storage Boot Order Nonsystem disk/NTLDR missing message Cause SolutionComputer will not boot from hard drive Cause Solution Device Configuration Computer seems to be locked up Cause Solution Solving Media Card Reader Problems Table C-4Solving Media Card Reader ProblemsCan not write to the media card Cause Computer’s software is used to safely eject the card Blank screen no video Cause Solution Solving Display ProblemsTable C-5Solving Display Problems Adjust screen resolution Dim characters Cause Solution Image is not centered Cause Solution No Connection, Check Signal Cable displays on screen CauseSelect ImageControl/ Horizontal Position or Vertical Out of Range displays on screen Cause Certain typed symbols do not appear correct Cause Solving Audio Problems Table C-6Solving Audio Problems Sound from headphones is not clear or muffled Cause There is no sound or sound volume is too low CauseLine-in jack is not functioning properly Cause Printer will not print Cause Solution Solving Printer ProblemsTable C-7Solving Printer Problems Printer will not turn on Cause Solution Printer prints garbled information Cause Solution Solving Keyboard and Mouse Problems Table C-8Solving Keyboard Problems Table C-9Solving Mouse Problems Enter Control Panel , and then select Device Manager Solving Hardware Installation ProblemsTable C-10Solving Hardware Installation Problems Security USB Security Computer will not start Cause Solution Solving Network Problems Table C-11Solving Network Problems Network status link light never flashes Cause Solution Manager Diagnostics reports a failure Cause Solving Memory Problems Memory count during Post is wrong Cause Solution Table C-12Solving Memory ProblemsOut of memory error Cause Solution Insufficient memory error during operation Cause Solution Table C-13Solving Processor Problems Solving Processor ProblemsSolving CD-ROM and DVD Problems Table C-14Solving CD-ROM and DVD Problems Security Network Boot Movie will not play in the DVD drive Cause Solution Solving USB Flash Drive Problems Cannot eject compact disc tray-load unit Cause Table C-15Solving USB Flash Drive Problems USB flash drive not found identified Cause SolutionSystem will not boot from USB flash drive Cause Solution Ports are set to Enabled in Security USB Security Solving Front Panel Component ProblemsSolving Internet Access Problems Unable to connect to the Internet Cause Solution Select Start Control Panel Click Internet Options Solving Software Problems Appendix C Troubleshooting Without Diagnostics Contacting Customer Support HP PC Hardware Diagnostics Why run HP PC Hardware Diagnostics How to access and run HP PC Hardware Diagnostics Downloading HP PC Hardware Diagnostics to a USB device System Restore Backup and RecoveryRestoring and recovering in Windows System Recovery System Recovery when Windows is responding System Recovery when Windows is not responding Creating recovery media Using recovery media Backup and recovery in Windows Backing up your information Performing a system recovery Using the Windows recovery tools Using f11 recovery tools Password Security and Resetting Cmos Resetting the Password Jumper Clearing and Resetting the Cmos Figure F-1 Cmos buttonPage Drive Protection System DPS Accessing DPS Through Computer Setup Select Storage DPS Self-Test Specifications Table H-1Specifications Appendix H Specifications Index Cmos DVI-D Sata