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Manuals
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HP Manuals
Desktop
Pro Tower 400 G9
Maintenance and service manual
HP Pro Tower 400 G9 Maintenance And Service Manual
Pci desktop pc
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Computer Features
Standard Configuration Features
Front Panel Components
Rear Panel Components
Serial Number Location
Illustrated Parts Catalog
Computer Major Components
Mass Storage Devices
Miscellaneous Parts
Routine Care, Drive Guidelines, and Disassembly Preparation
Electrostatic Discharge Information
Generating Static Electricity
Preventing Electrostatic Damage to Equipment
Personal Grounding Methods and Equipment
Grounding the Work Area
Recommended Materials and Equipment
Operating Guidelines
Routine Care
General Cleaning Safety Precautions
Removing Dirt and Debris from Your Computer
Cleaning Your Computer with a Disinfectant
Cleaning the Computer Case
Cleaning the Keyboard
Cleaning the Monitor
Cleaning the Mouse
Service Considerations
Tools and Software Requirements
Screws
Cables and Connectors
Hard Drives
Lithium Coin Cell Battery
SATA Hard Drives
Cable Management
Removal and Replacement Procedures
Preparation for Disassembly
Access Panel
Memory Modules (Dimms)
Optical Drive
Front Bezel
Front Bezel Security
Bezel Blanks
System Board Connections
Metal Bracket
Battery
Expansion Card
Hard Drive
Drive Cage Screw Locations
Drive Cage
Solid-State Drive
WLAN Module
Fan
Serial Port
Hood Sensor
Option Board
Heat Sink
Processor
Card Reader
Speaker
Power Supply
System Board
Wireless Antennas and Cables
Troubleshooting Without Diagnostics
Before You Call for Technical Support
Helpful Hints
Solving General Problems
Cannot Access the Computer Setup (F10) Utility When Booting the Computer
Computer Appears Locked up and will Not Turn off When the Power Button Is Pressed
Computer will Not Respond to Keyboard or Mouse
Computer Date and Time Display Is Incorrect
There Is no Sound or Sound Volume Is too Low
Cannot Remove Computer Cover or Access Panel
Poor Performance
Computer Turned off with Four Red Blinks and Two White Blinks
System Does Not Turn on and the Lights on the Front of the Computer Are Not Blinking
Solving Power Problems
Power Supply Shuts down Intermittently
Two Red Blinks then Two Beeps
Four Red Blinks then Four Beeps
Solving Hard Drive Problems
Hard Drive Error Occurs
Disk Drive Transaction Problem
Drive Not Found (Identified)
Nonsystem Disk/Ntldr Missing Message
Computer will Not Boot from Hard Drive
Computer Seems to be Locked up
Solving Audio Problems
Sound Cuts in and out
Sound Does Not Come out of the Speaker or Headphones
Computer Appears to be Locked up While Recording Audio
Line-In Jack Is Not Functioning Properly
Solving Printer Problems
Printer will Not Print
Printer will Not Turn on
Printer Prints Garbled Information
Printer will Not Print
Solving Keyboard and Mouse Problems
Keyboard Commands and Typing Are Not Recognized by the Computer
Mouse Does Not Respond to Movement or Is too Slow
Solving Hardware Installation Problems
A New Device Is Not Recognized as Part of the System
Computer will Not Start
Three Red Blinks then Two White Blinks
Solving Network Problems
Network Driver Does Not Detect Network Controller
Network Status Link Light Never Blinks
Diagnostics Reports a Failure
Diagnostics Passes, but the Computer Does Not Communicate with the Network
Network Controller Stopped Working When an Expansion Board was Added to the Computer
Network Controller Stops Working Without Apparent Cause
Cannot Connect to Network Server When Attempting Remote System Installation
System Setup Utility Reports Unprogrammed EEPROM
Solving Memory Problems
System will Not Boot or Does Not Function Properly after Installing Additional Memory Modules
Out of Memory Error
Memory Count During POST Is Wrong
Insufficient Memory Error During Operation
Five Red Blinks then Five Beeps
Solving USB Flash Drive Problems
USB Flash Drive Is Not Seen as a Drive Letter in Windows
USB Flash Drive Not Found (Identified)
System will Not Boot from USB Flash Drive
The Computer Boots to DOS after Making a Bootable Flash Drive
Solving Internet Access Problems
Unable to Connect to the Internet
Cannot Automatically Launch Internet Programs
Solving Software Problems
Computer will Not Start up and the HP Logo Does Not Appear
Illegal Operation Has Occurred" Error Message Is Displayed
Computer Setup (F10) Utility
Using Computer Setup (F10) Utilities
Computer Setup Main
Computer Setup Security
Computer Setup Advanced
POST Error Messages
POST Numeric Codes and Text Messages
Interpreting POST Diagnostic Front Panel Lights and Audible Codes
Password Security and Resetting CMOS
Changing a Setup or Power-On Password
Deleting a Setup or Power-On Password
Backing Up, Restoring, and Recovering
Backing up Information and Creating Recovery Media
Using Windows Tools for Backing up
Using the HP Cloud Recovery Download Tool to Create Recovery Media (Select Products Only)
Restoring and Recovering Your System
Creating a System Restore
Restoring and Recovery Methods
Recovering Using HP Recovery Media
Changing the Computer Boot Order
Using HP Sure Recover (Select Products Only)
Using HP PC Hardware Diagnostics
Using HP PC Hardware Diagnostics Windows (Select Products Only)
Using an HP PC Hardware Diagnostics Windows Hardware Failure ID Code
Accessing HP PC Hardware Diagnostics Windows
Accessing HP PC Hardware Diagnostics Windows from HP Support Assistant
Accessing HP PC Hardware Diagnostics Windows from the Start Menu (Select Products Only)
Downloading HP PC Hardware Diagnostics Windows
Downloading the Latest HP PC Hardware Diagnostics Windows Version from HP
Downloading the HP PC Hardware Diagnostics Windows from the Microsoft Store
Downloading HP Hardware Diagnostics Windows by Product Name or Number
Only)
Installing HP PC Hardware Diagnostics Windows
Using HP PC Hardware Diagnostics UEFI
Using an HP PC Hardware Diagnostics UEFI Hardware Failure ID Code
Starting HP PC Hardware Diagnostics UEFI
Only)
Downloading HP PC Hardware Diagnostics UEFI to a USB Flash Drive
Downloading the Latest HP PC Hardware Diagnostics UEFI Version
Only)
Using Remote HP PC Hardware Diagnostics UEFI Settings (Select Products Only)
Downloading Remote HP PC Hardware Diagnostics UEFI
Downloading the Latest Remote HP PC Hardware Diagnostics UEFI Version
Downloading Remote HP PC Hardware Diagnostics UEFI by Product Name or Number
Customizing Remote HP PC Hardware Diagnostics UEFI Settings
Statement of Memory Volatility
Current BIOS Steps
Nonvolatile Memory Usage
Questions and Answers
Using HP Sure Start (Select Products Only)
Power Cord Set Requirements
General Requirements
Japanese Power Cord Requirements
Country-Specific Requirements
Specifications
Index
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Quick Links
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Maintenance and Service Guide
HP Pro Tower 400 G9 PCI Desktop PC
HP Pro Tower 480 G9 PCI Desktop PC
SUMMARY
This guide provides information about spare parts, removal and replacement of parts, security, backing up, and
more.
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