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HP Pro Tower 400 G9 - Service Manual
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Maint
enance and Ser
vice Guide
HP Pr
o T
o
w
er 400 G9 PCI Deskt
op PC
HP Pr
o T
o
w
er 480 G9 PCI Deskt
op PC
SUMMAR
Y
This guide pr
ovides inf
ormation about spare parts, r
emov
al and replacement o
f parts, security, backing up
, and
mor
e.
2
Table of Contents
Main Page
Table of Contents
3
Computer Features
8
Standard Configuration Features
8
Front Panel Components
8
Rear Panel Components
9
Serial Number Location
10
Illustrated Parts Catalog
12
Computer Major Components
12
Mass Storage Devices
16
Miscellaneous Parts
17
Routine Care, Drive Guidelines, and Disassembly Preparation
20
Electrostatic Discharge Information
20
Generating Static Electricity
20
Preventing Electrostatic Damage to Equipment
21
Personal Grounding Methods and Equipment
21
Grounding the Work Area
22
Recommended Materials and Equipment
22
Operating Guidelines
23
Routine Care
23
General Cleaning Safety Precautions
23
Removing Dirt and Debris from Your Computer
24
Cleaning Your Computer with a Disinfectant
24
Cleaning the Computer Case
25
Cleaning the Keyboard
25
Cleaning the Monitor
26
Cleaning the Mouse
26
Service Considerations
26
Tools and Software Requirements
26
Screws
27
Cables and Connectors
27
Hard Drives
27
Lithium Coin Cell Battery
27
SATA Hard Drives
28
Cable Management
28
Removal and Replacement Procedures
30
Preparation for Disassembly
30
Access Panel
30
Memory Modules (Dimms)
31
Optical Drive
33
Front Bezel
35
Front Bezel Security
36
Bezel Blanks
37
System Board Connections
38
Metal Bracket
39
Battery
40
Expansion Card
42
Hard Drive
43
Drive Cage Screw Locations
46
Drive Cage
46
Solid-State Drive
47
WLAN Module
49
Fan
51
Serial Port
52
Hood Sensor
53
Option Board
54
Heat Sink
55
Processor
57
Card Reader
58
Speaker
59
Power Supply
60
System Board
61
Wireless Antennas and Cables
63
Troubleshooting Without Diagnostics
66
Before You Call for Technical Support
66
Helpful Hints
67
Solving General Problems
67
Cannot Access the Computer Setup (F10) Utility When Booting the Computer
67
Computer Appears Locked up and will Not Turn off When the Power Button Is Pressed
68
Computer will Not Respond to Keyboard or Mouse
68
Computer Date and Time Display Is Incorrect
68
There Is no Sound or Sound Volume Is too Low
68
Cannot Remove Computer Cover or Access Panel
69
Poor Performance
69
Computer Turned off with Four Red Blinks and Two White Blinks
70
System Does Not Turn on and the Lights on the Front of the Computer Are Not Blinking
70
Solving Power Problems
71
Power Supply Shuts down Intermittently
71
Two Red Blinks then Two Beeps
71
Four Red Blinks then Four Beeps
72
Solving Hard Drive Problems
72
Hard Drive Error Occurs
72
Disk Drive Transaction Problem
72
Drive Not Found (Identified)
73
Nonsystem Disk/Ntldr Missing Message
73
Computer will Not Boot from Hard Drive
73
Computer Seems to be Locked up
74
Solving Audio Problems
74
Sound Cuts in and out
74
Sound Does Not Come out of the Speaker or Headphones
74
Computer Appears to be Locked up While Recording Audio
75
Line-In Jack Is Not Functioning Properly
75
Solving Printer Problems
75
Printer will Not Print
75
Printer will Not Turn on
76
Printer Prints Garbled Information
76
Printer will Not Print
76
Solving Keyboard and Mouse Problems
76
Keyboard Commands and Typing Are Not Recognized by the Computer
76
Mouse Does Not Respond to Movement or Is too Slow
77
Solving Hardware Installation Problems
77
A New Device Is Not Recognized as Part of the System
77
Computer will Not Start
78
Three Red Blinks then Two White Blinks
78
Solving Network Problems
79
Network Driver Does Not Detect Network Controller
79
Network Status Link Light Never Blinks
79
Diagnostics Reports a Failure
79
Diagnostics Passes, but the Computer Does Not Communicate with the Network
80
Network Controller Stopped Working When an Expansion Board was Added to the Computer
80
Network Controller Stops Working Without Apparent Cause
80
Cannot Connect to Network Server When Attempting Remote System Installation
80
System Setup Utility Reports Unprogrammed EEPROM
81
Solving Memory Problems
81
System will Not Boot or Does Not Function Properly after Installing Additional Memory Modules
81
Out of Memory Error
81
Memory Count During POST Is Wrong
81
Insufficient Memory Error During Operation
82
Five Red Blinks then Five Beeps
82
Solving USB Flash Drive Problems
82
USB Flash Drive Is Not Seen as a Drive Letter in Windows
82
USB Flash Drive Not Found (Identified)
82
System will Not Boot from USB Flash Drive
83
The Computer Boots to DOS after Making a Bootable Flash Drive
83
Solving Internet Access Problems
83
Unable to Connect to the Internet
83
Cannot Automatically Launch Internet Programs
84
Solving Software Problems
84
Computer will Not Start up and the HP Logo Does Not Appear
84
Illegal Operation Has Occurred" Error Message Is Displayed
84
Computer Setup (F10) Utility
85
Using Computer Setup (F10) Utilities
85
Computer Setup Main
86
Computer Setup Security
90
Computer Setup Advanced
96
POST Error Messages
106
POST Numeric Codes and Text Messages
106
Interpreting POST Diagnostic Front Panel Lights and Audible Codes
112
Password Security and Resetting CMOS
115
Changing a Setup or Power-On Password
115
Deleting a Setup or Power-On Password
115
Backing Up, Restoring, and Recovering
117
Backing up Information and Creating Recovery Media
117
Using Windows Tools for Backing up
117
Using the HP Cloud Recovery Download Tool to Create Recovery Media (Select Products Only)
117
Restoring and Recovering Your System
117
Creating a System Restore
118
Restoring and Recovery Methods
118
Recovering Using HP Recovery Media
118
Changing the Computer Boot Order
119
Using HP Sure Recover (Select Products Only)
119
Using HP PC Hardware Diagnostics
120
Using HP PC Hardware Diagnostics Windows (Select Products Only)
120
Using an HP PC Hardware Diagnostics Windows Hardware Failure ID Code
120
Accessing HP PC Hardware Diagnostics Windows
120
Accessing HP PC Hardware Diagnostics Windows from HP Support Assistant
120
Accessing HP PC Hardware Diagnostics Windows from the Start Menu (Select Products Only)
121
Downloading HP PC Hardware Diagnostics Windows
121
Downloading the Latest HP PC Hardware Diagnostics Windows Version from HP
121
Downloading the HP PC Hardware Diagnostics Windows from the Microsoft Store
121
Downloading HP Hardware Diagnostics Windows by Product Name or Number
121
Only)
121
Installing HP PC Hardware Diagnostics Windows
122
Using HP PC Hardware Diagnostics UEFI
122
Using an HP PC Hardware Diagnostics UEFI Hardware Failure ID Code
122
Starting HP PC Hardware Diagnostics UEFI
122
Only)
123
Downloading HP PC Hardware Diagnostics UEFI to a USB Flash Drive
123
Downloading the Latest HP PC Hardware Diagnostics UEFI Version
124
Only)
124
Using Remote HP PC Hardware Diagnostics UEFI Settings (Select Products Only)
124
Downloading Remote HP PC Hardware Diagnostics UEFI
124
Downloading the Latest Remote HP PC Hardware Diagnostics UEFI Version
124
Downloading Remote HP PC Hardware Diagnostics UEFI by Product Name or Number
124
Customizing Remote HP PC Hardware Diagnostics UEFI Settings
125
Statement of Memory Volatility
126
Current BIOS Steps
126
Nonvolatile Memory Usage
128
Questions and Answers
129
Using HP Sure Start (Select Products Only)
130
Power Cord Set Requirements
131
General Requirements
131
Japanese Power Cord Requirements
131
Country-Specific Requirements
131
Specifications
133
Index
134
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HP Pro Tower 400 G9 Specifications
General
Brand
HP
Model
Pro Tower 400 G9
Category
Desktop
Language
English
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