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Battery, WARNING

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6. Remove the six screws that secure the system board to the chassis. NOTE: HP Pro 3405 is secured with eight screws. 7. Slide the system board toward the front of the chassis, and then lift it up and out of the chassis. Figure 7-30 Removing the system board (HP Pro 3400 shown) To install the system board, reverse the removal procedure. NOTE: When replacing the system board, you must also change the chassis serial number in the BIOS. NOTE: After installing a new system board, always update the system ROM to ensure that the latest version of the BIOS is being used on the computer. The latest system ROM BIOS can be found at: http:\\h18000.www1.hp.com/support/files. Battery The battery that comes with your computer provides power to the real-time clock and has a lifetime of about three years. When replacing the battery, use a battery equivalent to the battery originally installed on the computer. The computer comes with a 3-volt lithium coin cell battery. NOTE: The lifetime of the lithium battery can be extended by plugging the computer into a live AC wall socket. The lithium battery is only used when the computer is NOT connected to AC power. WARNING! This computer contains an internal lithium manganese dioxide battery. There is a risk of fire and burns if the battery is not handled properly. To reduce the risk of personal injury: ❑ Do not attempt to recharge the battery. ❑ Do not expose to temperatures higher than 60°C (140°F) ❑ Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water. ❑ Replace the battery only with the HP/Compaq spare designated for this product. Battery 77

Section	Page
Product Features	11
Feature Overview	11
Microtower Components	13
Small Form Factor Components	14
Installing and Customizing the Software	15
Installing the Operating System	15
Downloading Microsoft Windows Updates	15
Installing or Upgrading Device Drivers (Windows systems)	16
Accessing Disk Image (ISO) Files	16
Protecting the Software	16
Computer Setup (F10) Utility	17
Computer Setup (F10) Utilities	17
Using Computer Setup (F10) Utilities	18
Computer Setup—File	19
Computer Setup—Storage	20
Computer Setup—Security	22
Computer Setup—Power	25
Computer Setup—Advanced	26
Recovering the Configuration Settings	27
Illustrated parts catalog	28
Microtower Chassis Spare Parts	28
Computer Major Components	28
Cables	31
Misc Parts	32
Drives	33
Misc Boards	33
Sequential Part Number Listing	34
Small Form Factor (SFF) Chassis Spare Parts	36
Computer major components	36
Cables	38
Misc Parts	39
Drives	40
Misc Boards	40
Sequential Part Number Listing	40
Serial ATA (SATA) Drive Guidelines and Features	43
SATA Hard Drives	43
SATA Hard Drive Cables	43
SATA Data Cable	43
SMART ATA Drives	44
Hard Drive Capacities	44
Routine Care and Disassembly Preparation	45
Electrostatic Discharge Information	45
Generating Static	45
Preventing Electrostatic Damage to Equipment	46
Personal Grounding Methods and Equipment	46
Grounding the Work Area	47
Recommended Materials and Equipment	47
Operating Guidelines	48
Routine Care	48
General Cleaning Safety Precautions	48
Cleaning the Computer Case	48
Cleaning the Keyboard	49
Cleaning the Monitor	49
Cleaning the Mouse	50
Service Considerations	50
Power Supply Fan	50
Tools and Software Requirements	50
Screws	50
Cables and Connectors	51
Hard Drives	51
Lithium Coin Cell Battery	51
Removal and Replacement Procedures – Microtower Chassis	52
Serviceability Features	52
Preparation for Disassembly	52
Access Panel	53
Front Bezel	54
Memory	55
DDR3-SDRAM DIMMs	55
Populating DIMM Sockets	56
Removing Memory Modules	57
Expansion Cards	59
Cable Management	65
Cable Connections	66
Drives	67
Installing Additional Drives	68
System Board Drive Connections	69
Removing an Optical Drive	71
Removing a Hard Drive	71
Front I/O and USB Panel Housing Assembly	73
Power Switch/LED Assembly	76
System Fan	78
Fan Sink Assembly	80
Processor	81
Power Supply	85
System Board	86
Battery	87
Removal and Replacement Procedures – Small Form Factor (SFF) Chassis	89
Preparation for Disassembly	89
Access Panel	90
Front Bezel	92
Memory	93
DDR3-SDRAM DIMMs	93
Populating DIMM Sockets	94
Removing DIMMs	95
Expansion Card	98
Cable Management	102
Cable Connections	103
Drives	104
Drive Positions	104
Removing Drives	105
Removing an Optical Drive	105
Removing the Hard Drive	107
Power Switch	111
Front USB Assembly	113
Fan Assembly	116
Fan Sink	118
Processor	120
Power Supply	122
System Board	124
Battery	126
Connector Pin Assignments	128
Ethernet BNC	128
USB	128
Microphone	128
Headphone	129
Line-in Audio	129
Line-out Audio	129
4-Pin Power (for CPU)	129
Monitor	130
Serial Interface, Powered and Non-Powered	130
DVI Connector	131
24-Pin Power	132
PCI Express	133
PCI Express	134
Power Cord Set Requirements	135
General Requirements	135
Japanese Power Cord Requirements	135
Country-Specific Requirements	136
POST Error Messages	137
POST Numeric Codes and Text Messages	138
Interpreting POST Diagnostic Front Panel LEDs and Audible Codes	146
Troubleshooting Without Diagnostics	150
Safety and Comfort	150
Before You Call for Technical Support	150
Helpful Hints	151
Solving General Problems	153
Solving Power Problems	156
Solving Diskette Problems	157
Solving Hard Drive Problems	159
Solving Media Card Reader Problems	162
Solving Display Problems	163
Solving Audio Problems	168
Solving Printer Problems	170
Solving Keyboard and Mouse Problems	171
Solving Hardware Installation Problems	173
Solving Network Problems	175
Solving Memory Problems	177
Solving Processor Problems	179
Solving CD-ROM and DVD Problems	179
Solving USB Flash Drive Problems	181
Solving Front Panel Component Problems	182
Solving Internet Access Problems	183
Solving Software Problems	185
Contacting Customer Support	186
Password Security and Resetting CMOS	187
Resetting the Password Jumper	188
Clearing and Resetting the CMOS	188
Backup and Recovery	190
Windows 7 – Backup and Recovery	190
Backing Up Your Information	190
Performing a Recovery	192
Using the Windows Recovery Tools	192
Using F11	193
Using a Windows 7 Operating System DVD (purchased separately)	193
Specifications	195
MT Specifications	195
SFF Specifications	196

Match case Limit results 1 per page

Remove the six screws that secure the system board to the chassis.

NOTE:

HP Pro 3405 is secured with eight screws.

Slide the system board toward the front of the chassis, and then lift it up and out of the chassis.

Figure 7-30

Removing the system board (HP Pro 3400 shown)

To install the system board, reverse the removal procedure.

NOTE:

When replacing the system board, you must also change the chassis serial number in the

BIOS.

NOTE:

After installing a new system board, always update the system ROM to ensure that the

latest version of the BIOS is being used on the computer. The latest system ROM BIOS can be found

at:

http:\\h18000.www1.hp.com/support/files

Battery

The battery that comes with your computer provides power to the real-time clock and has a lifetime of

about three years. When replacing the battery, use a battery equivalent to the battery originally

installed on the computer. The computer comes with a 3-volt lithium coin cell battery.

NOTE:

The lifetime of the lithium battery can be extended by plugging the computer into a live AC

wall socket. The lithium battery is only used when the computer is NOT connected to AC power.

WARNING!

This computer contains an internal lithium manganese dioxide battery. There is a risk of

fire and burns if the battery is not handled properly. To reduce the risk of personal injury:

❑

Do not attempt to recharge the battery.

❑

Do not expose to temperatures higher than 60°C (140°F)

❑

Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water.

❑

Replace the battery only with the HP/Compaq spare designated for this product.

Battery