Manuals / HP / Computer Equipment / Personal Computer

HP E1Z74UT E1Z74UT#ABA, E1Z77UT E1Z77UT#ABA, E1Z75UT E1Z75UT#ABA Tower TWR rear panel components

Models: E1Z77UT E1Z77UT#ABA E1Z74UT E1Z74UT#ABA E1Z75UT E1Z75UT#ABA

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Tower (TWR) rear panel components

1	Power Cord Connector	7	Line-Out Connector for powered audio
			devices (green)

2	PS/2 Keyboard Connector (purple)	8	PS/2 Mouse Connector (green)

3	USB 2.0 Ports (black)	9	RJ-45 Network Connector

4	DisplayPort Monitor Connectors	10	Serial Connector

5	VGA Monitor Connector	11	Line-In Audio Connector (blue)

6 USB 3.0 Ports (blue)

NOTE: An optional second serial port and an optional parallel port are available from HP.

When a device is plugged into the blue Line-In Audio Connector, a dialog box will pop up asking if you want to use the connector for a line-in device or a microphone. You can reconfigure the connector at any time by double-clicking the Audio Manager icon in the Windows taskbar.

When a graphics card is installed in one of the system board slots, the video connectors on the graphics card and the integrated graphics on the system board may be used at the same time. However, for such a configuration, only the display connected to the discrete graphics card will display POST messages.

The system board graphics can be disabled by changing settings in Computer Setup.

Tower (TWR) rear panel components

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HP E1Z74UT E1Z74UT#ABA, E1Z77UT E1Z77UT#ABA, E1Z75UT E1Z75UT#ABA manual Tower TWR rear panel components

Contents

Maintenance and Service Guide Product notice Iii About This BookIv About This Book Table of contents Removal and replacement procedures Tower TWR Removal and replacement procedures Small Form Factor SFF Computer Setup F10 Utility 132 Password security and resetting Cmos 200 TWR specifications 228 SFF specifications 229 Appendix C Power cord set requirements 226Tower TWR Product featuresStandard configuration features Standard configuration featuresSmall Form Factor SFF Product featuresTower TWR front panel components Small Form Factor SFF front panel components Tower TWR rear panel components Small Form Factor SFF rear panel components Tower TWR Small Form Factor SFF Serial number locationActivating and Customizing the Software Activating and customizing the software in WindowsActivating the Windows operating system Customizing the monitor display Downloading Windows 7 updatesInstalling or upgrading device drivers Run Windows Update monthly thereafterClick Settings Change PC Settings Downloading Windows 8 updatesTower TWR chassis spare parts Illustrated parts catalogTower TWR chassis spare parts Computer major componentsDescription Spare part number Front bezel Access panelPower supply Illustrated parts catalogCables Misc parts Drives Spare part Description Number Misc boardsSequential part number listing Description Spare part numberTower TWR chassis spare parts Illustrated parts catalog Tower TWR chassis spare parts Small Form Factor SFF chassis spare parts Power switch assembly Sata drive power cableSmall Form Factor SFF chassis spare parts Fan duct Rubber footChassis stand Keyboard Misc boards Small Form Factor SFF chassis spare parts Illustrated parts catalog 732772-001 Solenoid lock 733687-001 HP WLAN/Bluetooth module Electrostatic discharge information Generating static Preventing electrostatic damage to equipmentRelative Humidity Event 55% 40% 10% Static Shielding Protection Levels Personal grounding methods and equipmentGrounding the work area Recommended materials and equipmentOperating guidelines Routine care General cleaning safety precautionsCleaning the Computer Case Cleaning the keyboardPower supply fan Service considerationsCleaning the monitor Cleaning the mouseHard Drives Cables and connectorsTools and software Requirements ScrewsLithium coin cell battery Serial ATA Hard Drive CharacteristicsSata hard drives Sata data cable Sata hard drive cablesSmart ATA drives Cable managementPreparation for disassembly Removal and replacement procedures Tower TWRAccess panel Front bezel security Front bezel Bezel blanks Page Populating Dimm sockets MemoryDIMMs DDR3-SDRAM DIMMsInstalling DIMMs Page Expansion cards Page Page Page System board connections System Board Connector System Board Label Color ComponentDrives Description Spare part number Optical drivesHard drives Guide Screw Device Drive positions Removing a 5.25-inch drive Installing a 5.25-inch drivePage Removing a 3.5-inch device Page Installing a 3.5-inch device Removing a slim optical drive Installing a slim optical drive Removing a 3.5-inch or 2.5-inch hard drive Page Installing a 3.5-inch or 2.5-inch hard drive Page Page Page Media Front I/O assemblyPower switch/LED assembly Page Fan sink Page Processor Description Spare part number Intel Core i7 processorIntel Core i5 processors Speaker Smart Cover Lock solenoid lock Hlock Page Hood sensor Fan Page PWR Pwrcpu Pwrcmd Power supplyPage Page System board Page Removal and replacement procedures Small Form Factor SFF Access panel 732760-001 Front bezel 732757-001 Optical drive bezel blank 732769-001 Front bezel security Page Bezel blanks Memory Installing DIMMs Page Expansion card Page Page Page Blue Front USB 3.0 Ports Drives Page Drive positions Removing a 3.5-inch device Installing a 3.5-inch device Page Removing a slim optical drive Installing a slim optical drive Removing and replacing a 3.5-inch hard drive Page Page Removing a 2.5-inch hard drive Installing a 2.5-inch hard drivePage Pwrcpu Pwrcmd PWR Page Page Fan duct Solenoid lock 732772-001 Hlock 118 Removal and replacement procedures Small Form Factor SFF Hood sensor Cable routing Front I/O assembly 732755-001 Page Power switch assembly Page Speaker 727149-001 Fan sink 727150-001 Processor Page System board Changing from desktop to tower configuration Page Computer Setup F10 Utilities Computer Setup F10 UtilityUsing Computer Setup F10 Utilities Computer Setup F10 Utility Computer Setup-FileComputer Setup-Storage Storage Options Sata Emulation Removable Media BootBoot Order Shortcut to Temporarily Override Boot OrderDPS Self-Test Password Computer Setup-SecurityOption Description Setup Password Power-OnSlot Security Network BootDevice Security USB SecuritySecurity Virtualization Technology Directed I/O System SecurityDriveLock Security Secure BootComputer Setup-Power Option Description OS PowerManagement Thermal Hardware PowerOption Heading Power-On Options Computer Setup-AdvancedDevice Options Bios Power-OnOnboard Devices Bus OptionsRecovering the Configuration Settings VGA ConfigurationAMT Configuration Safety and comfort Before you call for technical support Troubleshooting without diagnosticsRefer to Helpful hints on page 149 in this guide Helpful hintsPage Computer date and time display is incorrect Cause Solution Solving general problems152 Troubleshooting without diagnostics Cannot remove computer cover or access panel Cause SolutionPoor performance Cause Solution Under Windows System, click Run Go to Start All Programs AccessoriesRun All apps icon154 Troubleshooting without diagnostics Power supply shuts down intermittently Cause Solution Solving power problemsTools tab. Under Error-checking click Check Now Solving hard drive problems156 Troubleshooting without diagnostics Hard drive error occurs Cause SolutionNonsystem disk/NTLDR missing message Cause Solution Disk transaction problem Cause SolutionDrive not found identified Cause Solution Advanced Power-On OptionsSecurity Device Security 158 Troubleshooting without diagnosticsComputer will not boot from hard drive Cause Solution Computer seems to be locked up Cause SolutionSolving media card reader problems Solving media card reader problems 159Can not write to the media card Cause Solution Solving display problems 160 Troubleshooting without diagnosticsBlank screen no video Cause Solution Solving display problems Dim characters Cause Solution 162 Troubleshooting without diagnosticsSelect ImageControl/ Horizontal Position or Vertical Image is not centered Cause SolutionOut of Range displays on screen Cause Solution 164 Troubleshooting without diagnosticsCharacter Map Certain typed symbols do not appear correct Cause SolutionAdvanced Device Options Internal Speaker Solving audio problems166 Troubleshooting without diagnostics Sound cuts in and out Cause SolutionLine-in jack is not functioning properly Cause Solution Solving audio problemsPrinter will not print Cause Solution Solving printer problems168 Troubleshooting without diagnostics There is no sound or sound volume is too low Cause SolutionPrinter prints garbled information Cause Solution Solving keyboard and mouse problemsSolving keyboard and mouse problems 169 Printer will not turn on Cause Solution170 Troubleshooting without diagnostics Solving Hardware Installation Problems 171 Solving Hardware Installation Problems172 Troubleshooting without diagnostics Solving Hardware Installation Problems 173 174 Troubleshooting without diagnostics Solving Network ProblemsNetwork status link light never flashes Cause Solution ManagerControl Panel, and then select Device Manager Diagnostics reports a failure Cause Solution 176 Troubleshooting without diagnosticsNew network card will not boot Cause Solution Solving memory problemsInsufficient memory error during operation Cause Solution 178 Troubleshooting without diagnosticsOut of memory error Cause Solution Memory count during Post is wrong Cause SolutionSolving processor problems Poor performance is experienced Cause SolutionCause Solution Solving CD-ROM and DVD problems 180 Troubleshooting without diagnosticsStorage Boot Order Cannot eject compact disc tray-load unit Cause Solution Movie will not play in the DVD drive Cause SolutionSystem will not boot from USB flash drive Cause Solution Solving USB flash drive problems182 Troubleshooting without diagnostics USB flash drive not found identified Cause SolutionUnable to connect to the Internet Cause Solution Solving front panel component problemsSolving Internet access problems Solving front panel component problems 183184 Troubleshooting without diagnostics Select Start Control Panel Click Internet OptionsSelect the Cookies check box and click the Delete button ROM issue Post error has occurred Solving software problemsSystem files may be damaged 186 Troubleshooting without diagnosticsPost error messages Control panel message Description Recommended action Post error messagesROM Download to Disable to Post numeric codes and text messagesPost numeric codes and text messages Verify monitor is attached and turned CPU or Chassis Fan not Detected Drivelock Security. For each listed Will fix an erroneous error messageIf the error persists, replace the system board Post error messages Fails into the General grouping. Status Activity Beeps Possible cause Recommended action White Power LED On None Computer onIs not spinning, make sure the fans cable is For systems with a graphics card Install a TXT capable processor Cmos Password security and resettingResetting the password jumper Clearing and resetting the Cmos Page HP PC Hardware Diagnostics Why run HP PC Hardware Diagnostics UefiHow to access and run HP PC Hardware Diagnostics Uefi Downloading HP PC Hardware Diagnostics to a USB device System backup and recovery Backing up, restoring, and recovering in WindowsSystem backup and recovery Creating recovery media and backups Using Windows 8 Refresh Restoring and recovering using Windows 8 toolsUsing Windows 8 Reset Follow the on-screen instructions System backup and recovery Select Reset Follow the on-screen instructions to continuePage Start Help and Support Creating recovery mediaClick All Programs To create the Windows DVD NextFollow the on-screen instructions to set up your backup System RestoreSystem Recovery when Windows is responding System RecoveryIf Security and Protection is listed, continue with step System Recovery when Windows is not respondingPage Select Install now Battery replacement Type Page Smart cover FailSafe key Unlocking the smart cover lockPage Page Power cord set requirements Japanese power cord requirementsGeneral requirements Country-specific requirements Country-specific requirements 227Country Accrediting Agency Specifications TWR specificationsAppendix D Specifications SFF specifications Rated Input Current Index Access panel Locked Locking and unlocking 223SFF TWR Keyboard Cleaning Spare part numbers Keyboard problems 169119 SFF power supply 112 PasswordSata Windows Backing up information 215 Backup and recovery