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Product notice
This guide describes features that are common
to most models. Some features may not be
available on your computer.
Not all features are available on all editions of
Windows 8.1. This computer may require
upgraded and/or separately purchased
hardware, drivers, and/or software to take full
advantage of Windows 8.1 functionality. See
http://www.microsoft.com for details.
This computer may require upgraded and/ or
separately purchased hardware and/or a DVD
drive to install the Windows 7 software and
take full advantage of Windows 7 functionality.
See http://windows.microsoft.com/en-us/
windows7/get-know-windows-7 for details.
Second Edition (November 2014)
First Edition (August 2014)
Document Part Number: 762914-002
Safety warning notice
WARNING!To reduce the possibility of heat-related injuries or of overheating the device, do not place
the device directly on your lap or obstruct the device air vents. Use the device only on a hard, flat surface. Do
not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or
rugs or clothing, to block airflow. Also, do not allow the AC adapter to contact the skin or a soft surface, such
as pillows or rugs or clothing, during operation. The device and the AC adapter comply with the useraccessible surface temperature limits defined by the International Standard for Safety of Information
Technology Equipment (IEC 60950).
iii
iv Safety warning notice
Table of contents
1 Product Features ........................................................................................................................................... 1
Standard Configuration Features .......................................................................................................................... 1
Small form factor ................................................................................................................................ 1
Desktop mini ........................................................................................................................................ 2
Front panel components, microtower .................................................................................................................. 3
Front panel components, small form factor ......................................................................................................... 4
Front panel components, desktop mini ................................................................................................................ 5
Rear panel components, small form factor .......................................................................................................... 7
Rear panel components, desktop mini ................................................................................................................. 8
Serial Number Location ......................................................................................................................................... 9
2 Illustrated parts catalog .............................................................................................................................. 10
Microtower (MT) chassis spare parts .................................................................................................................. 10
Computer major components ........................................................................................................... 10
Misc parts .......................................................................................................................................... 13
Misc parts .......................................................................................................................................... 20
Desktop Mini (DM) chassis spare parts ............................................................................................................... 24
Computer major components ........................................................................................................... 24
Misc parts .......................................................................................................................................... 26
3 Routine care, SATA drive guidelines, and disassembly preparation .................................................................. 28
Electrostatic discharge information ................................................................................................................... 28
Routine care ......................................................................................................................................................... 31
General cleaning safety precautions ................................................................................................ 31
Cleaning the Computer Case ............................................................................................................. 31
Cleaning the keyboard ...................................................................................................................... 31
Cleaning the monitor ......................................................................................................................... 32
Cleaning the mouse ........................................................................................................................... 32
Service considerations ........................................................................................................................................ 32
Power supply fan ............................................................................................................................... 32
Tools and software Requirements ................................................................................................... 32
Cables and connectors ...................................................................................................................... 33
Hard Drives ........................................................................................................................................ 33
SATA hard drives .................................................................................................................................................. 34
SATA hard drive cables ........................................................................................................................................ 34
SATA data cable ................................................................................................................................. 34
SMART ATA drives ................................................................................................................................................ 34
Preparation for disassembly ............................................................................................................................... 36
Front bezel ........................................................................................................................................................... 38
Removing a slim optical drive ........................................................................................................... 51
Installing a slim optical drive ............................................................................................................ 52
Removing a hard drive ...................................................................................................................... 53
Installing a hard drive ....................................................................................................................... 54
vi
Drive power cable ................................................................................................................................................ 58
Front I/O and power switch assembly ................................................................................................................. 59
Rear chassis fan ................................................................................................................................................... 65
Power supply ....................................................................................................................................................... 66
System board ....................................................................................................................................................... 68
System board callouts ...................................................................................................................... 70
5 Removal and replacement procedures – small form factor (SFF) chassis .......................................................... 72
Preparation for disassembly ............................................................................................................................... 72
Front bezel ........................................................................................................................................................... 73
Front bezel security ............................................................................................................................................. 74
Installing and Removing Drives ........................................................................................................ 86
Removing a 3.5-inch device ............................................................................................ 88
Installing a 3.5-inch device ............................................................................................. 89
Removing a slim optical drive ........................................................................................ 92
Installing a slim optical drive .......................................................................................... 93
Removing and replacing a 3.5-inch hard drive .............................................................. 95
Removing a 2.5-inch hard drive ..................................................................................... 98
Installing a 2.5-inch hard drive ....................................................................................... 98
Drive power cable .............................................................................................................................................. 100
Front I/O assembly ............................................................................................................................................ 103
Power switch ..................................................................................................................................................... 106
Power supply ..................................................................................................................................................... 114
System board ..................................................................................................................................................... 116
System board callouts .................................................................................................................... 118
Using the Small Form Factor Computer in a Tower Orientation ...................................................................... 120
6 Removal and replacement procedures – desktop mini (DM) chassis ............................................................... 121
Preparation for disassembly ............................................................................................................................. 121
Hard drive .......................................................................................................................................................... 123
Front bezel ......................................................................................................................................................... 128
Replacing the battery ........................................................................................................................................ 133
Fan ..................................................................................................................................................................... 138
System board ..................................................................................................................................................... 148
System board callouts .................................................................................................................... 151
Recovering the Configuration Settings ............................................................................................................. 167
viii
8 Troubleshooting without diagnostics .......................................................................................................... 168
Safety and comfort ............................................................................................................................................ 168
Before you call for technical support ................................................................................................................ 168
Solving general problems ................................................................................................................................. 170
Solving power problems ................................................................................................................................... 173
Solving hard drive problems ............................................................................................................................. 175
Solving media card reader problems ................................................................................................................ 177
9 POST error messages ................................................................................................................................. 200
POST numeric codes and text messages .......................................................................................................... 200
Interpreting POST diagnostic front panel LEDs and audible codes .................................................................. 205
10 Password security and resetting CMOS ...................................................................................................... 208
Resetting the password jumper ........................................................................................................................ 208
Changing a Setup or Power-On password ........................................................................................................ 209
Deleting a Setup or Power-On password .......................................................................................................... 210
Clearing and resetting the CMOS ....................................................................................................................... 210
11 HP PC Hardware Diagnostics ..................................................................................................................... 212
Why run HP PC Hardware Diagnostics .............................................................................................................. 212
How to access and run HP PC Hardware Diagnostics ....................................................................................... 212
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device .................................................................. 2 12
12 System backup and recovery .................................................................................................................... 214
Backing up, restoring, and recovering in Windows 8.1 or Windows 8 ............................................................. 214
Creating recovery media and backups ........................................................................................... 214
Restoring and recovering using Windows tools ............................................................................. 214
ix
Using Reset when the system is not responding ......................................................... 215
Recovery using the Windows recovery USB flash drive ............................................... 215
Recovery using Windows operating system media (purchased separately) .............. 216
Backing up, restoring, and recovering in Windows 7 ........................................................................................ 216
Creating recovery media ................................................................................................................. 217
Creating recovery media using HP Recovery Manager (select models only) .............. 217
Creating recovery discs with HP Recovery Disc Creator (select models only) ............ 218
Backing up your information ........................................................................................ 219
System Restore ............................................................................................................................... 219
System Recovery ............................................................................................................................. 220
System Recovery when Windows is responding .......................................................... 220
System Recovery when Windows is not responding ................................................... 221
System Recovery using recovery media (select models only) .................................... 221
Using HP Recovery Disc operating system discs (select models only) ....................... 222
Appendix A Power Cord Set Requirements ...................................................................................................... 224
General Requirements ....................................................................................................................................... 224
Japanese Power Cord Requirements ................................................................................................................ 224
Appendix B Statement of Volatility ................................................................................................................ 226
Appendix C Specifications ............................................................................................................................. 228
Index ........................................................................................................................................................... 232
x
1Product Features
Standard Configuration Features
Features may vary depending on the model. For support assistance and to learn more about the hardware
and software installed on your computer model, run the HP Support Assistant utility.
Microtower
Small form factor
NOTE:The small form factor can be used in a tower orientation or a desktop orientation.
Standard Configuration Features1
Desktop mini
NOTE:The desktop mini can be used in a tower orientation or a desktop orientation.
2Chapter 1 Product Features
Front panel components, microtower
Drive configuration may vary by model. Some models have a bezel blank covering the optical drive bay.
1Slim Optical Drive (optional)6SD Card Reader
2Dual-State Power Button7Hard Drive Activity Light
3USB 2.0 Port - Charging (black)8USB 2.0 Port (black)
NOTE: When a device is plugged into the Microphone/Headphone Connector, a dialog box will pop up asking if you want
to use the connector for a microphone Line-In device or a headphone. You can reconfigure the connector at any time by
double-clicking the Audio Manager icon in the Windows taskbar.
NOTE: The USB 2.0 Port - Charging also provides current to charge a device such as a Smart Phone. The charging current
is available whenever the power cord is plugged into the system, even when the system is off.
NOTE: The Power On Light is normally white when the power is on. If it is flashing red, there is a problem with the
computer and it is displaying a diagnostic code.
Front panel components, microtower3
Front panel components, small form factor
Drive configuration may vary by model. Some models have a bezel blank covering one or more drive bays.
2USB 2.0 Port - Charging (black)7Dual-State Power Button
3USB 2.0 Port (black)8Hard Drive Activity Light
4USB 3.0 Ports (blue)93.5-inch Media Card Reader (optional)
5Microphone/Headphone Connector
NOTE: When a device is plugged into the Microphone/Headphone Connector, a dialog box will pop up asking if you want
to use the connector for a microphone Line-In device or a headphone. You can reconfigure the connector at any time by
double-clicking the Audio Manager icon in the Windows taskbar.
NOTE: The USB 2.0 Port - Charging also provides current to charge a device such as a Smart Phone. The charging current
is available whenever the power cord is plugged into the system, even when the system is off.
NOTE: The Power On Light is normally white when the power is on. If it is flashing red, there is a problem with the
computer and it is displaying a diagnostic code.
4Chapter 1 Product Features
Front panel components, desktop mini
Drive configuration may vary by model. Some models have a bezel blank covering one or more drive bays.
NOTE: The USB 3.0 Port - Charging also provides current to charge a device such as a Smart Phone. The charging current
is available whenever the power cord is plugged into the system, even when the system is off.
NOTE: When a device is plugged into the Microphone/Headphone Connector, a dialog box will pop up asking if you want
to use the connector for a microphone Line-In device or a headphone. You can reconfigure the connector at any time by
double-clicking the Audio Manager icon in the Windows taskbar.
NOTE: The Power On Light is normally white when the power is on. If it is flashing red, there is a problem with the
computer and it is displaying a diagnostic code. Refer to the Maintenance and Service Guide to interpret the code.
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/or the
integrated graphics on the system board may be used. The specific graphics card installed and software configuration will
determine the behavior.
The system board graphics can be disabled by changing settings in Computer Setup.
USB 2.0 Ports (black)8PS/2 Mouse Connector (green)
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/or the
integrated graphics on the system board may be used. The specific graphics card installed and software configuration will
determine the behavior.
The system board graphics can be disabled by changing settings in Computer Setup.
Line-Out Connector for powered audio devices
(green)
USB 3.0 Ports (blue)
7Power Cord Connector
8Chapter 1 Product Features
Serial Number Location
Each computer has a unique serial number and a product ID number that are located on the exterior of the
computer. Keep these numbers available for use when contacting customer service for assistance.