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HP Dx7500 Service Reference Guide: HP Compaq dx7500 Business PC - Page 162

Appendix C, Troubleshooting Without Diagnostics, Solving General Problems continued - processor upgrade

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Table C-1 Solving General Problems (continued) There is no sound or sound volume is too low. Cause System volume may be set low or muted. Solution 1. Check the F10 BIOS settings to make sure the internal system speaker is not muted (this setting does not affect the external speakers). 2. Make sure the external speakers are properly connected and powered on and that the speakers' volume control is set correctly. 3. Use the system volume control available in the operating system to make sure the speakers are not muted or to increase the volume. Poor performance is experienced. Cause Solution Processor is hot. 1. Make sure airflow to the computer is not blocked. Leave a 10.2-cm (4-inch) clearance on all vented sides of the computer and above the monitor to permit the required airflow. 2. Make sure fans are connected and working properly (some fans only operate when needed). Hard drive is full. 3. Make sure the processor heatsink is installed properly. Transfer data from the hard drive to create more space on the hard drive. Low on memory. Hard drive fragmented. Program previously accessed did not release reserved memory back to the system. Add more memory. Defragment hard drive. Restart the computer. Virus resident on the hard drive. Too many applications running. Run virus protection program. 1. Close unnecessary applications to free up memory. 2. Add more memory. Some applications run in the background and can be closed by right-clicking on their corresponding icons in the task tray. To prevent these applications from launching at startup, go to Start > Run (Windows XP) or Start > Accessories > Run (Windows Vista) and type msconfig. On the Startup tab of the System Configuration Utility, clear applications that you do not want to launch automatically. Some software applications, especially games, are stressful 1. Lower the display resolution for the current application or on the graphics subsystem consult the documentation that came with the application for suggestions on how to improve performance by adjusting parameters in the application. 2. Add more memory. Cause unknown. 3. Upgrade the graphics solution. Restart the computer. 152 Appendix C Troubleshooting Without Diagnostics

Section	Page
Installing and Customizing the Software	11
Installing the Operating System	11
Installing or Upgrading Device Drivers	11
HP Backup and Recovery Manager	11
Computer Setup (F10) Utility	13
Computer Setup (F10) Utilities	13
Using Computer Setup (F10) Utilities	13
Computer Setup—Main	14
Computer Setup—Advanced	15
Computer Setup—Power	16
Computer Setup—Boot	17
Computer Setup—Exit	17
Recovering the Configuration Settings	18
Computer Diagnostic Features	19
HP Insight Diagnostics	19
Accessing HP Insight Diagnostics	19
Survey Tab	20
Test Tab	21
Status Tab	21
Log Tab	22
Help Tab	22
Saving and Printing Information in HP Insight Diagnostics	23
Downloading the Latest Version of HP Insight Diagnostics	23
Protecting the Software	23
HP Backup and Recovery Manager	24
Desktop Management	25
Initial Configuration and Deployment	25
HP Software Agent	26
Altiris Deployment Solution Agent	26
Remote System Installation	27
Software Updating and Management	27
HP Client Management Interface	27
HP SoftPaq Download Manager	28
HP System Software Manager	28
HP ProtectTools Security Manager	29
HP Client Automation Starter and Standard Editions	29
HP Client Automation Enterprise Edition	30
HP Client Manager from Symantec	30
Altiris Client Management Suite	31
HP Client Catalog for Microsoft System Center & SMS Products	31
HP Backup and Recovery Manager	31
Verdiem Surveyor	32
HP Proactive Change Notification	32
Subscriber’s Choice	32
Retired Solutions	33
ROM Flash	33
Remote ROM Flash	33
HPQFlash	33
Boot Block Emergency Recovery Mode	33
Replicating the Setup	34
Copying to Single Computer	34
Copying to Multiple Computers	35
Creating a Bootable Device	36
Supported USB Flash Media Device	36
Unsupported USB Flash Media Device	37
Dual-State Power Button	39
HP Web Site Support	39
Industry Standards	40
Asset Tracking and Security	40
Password Security	41
Establishing a Supervisor Password Using Computer Setup	41
Entering a Supervisor Password or User password	42
Changing a Supervisor or User password	42
Deleting a Supervisor or User Password	43
National Keyboard Delimiter Characters	43
Clearing Passwords	43
Cable Lock Provision	44
Fault Notification and Recovery	44
Drive Protection System	44
Surge-Tolerant Power Supply	44
Thermal Sensor	44
Serial ATA (SATA) Drive Guidelines and Features	45
SATA Hard Drives	45
SATA Hard Drive Cables	45
SATA Data Cable	45
SMART ATA Drives	46
Hard Drive Capacities	46
Identifying the Chassis, Routine Care, and Disassembly Preparation	47
Chassis Designations	47
Microtower (MT)	47
Small Form Factor (SFF)	48
Electrostatic Discharge Information	48
Generating Static	48
Preventing Electrostatic Damage to Equipment	49
Personal Grounding Methods and Equipment	49
Grounding the Work Area	50
Recommended Materials and Equipment	50
Operating Guidelines	51
Routine Care	52
General Cleaning Safety Precautions	52
Cleaning the Computer Case	52
Cleaning the Keyboard	52
Cleaning the Monitor	53
Cleaning the Mouse	53
Service Considerations	53
Power Supply Fan	53
Tools and Software Requirements	53
Screws	54
Cables and Connectors	54
Hard Drives	54
Lithium Coin Cell Battery	54
Removal and Replacement Procedures Microtower (MT) Chassis	56
Serial Number Location	56
Preparation for Disassembly	57
Access Panel	58
Front Bezel	59
Bezel Blanks	60
Memory	61
DDR2-SDRAM DIMMs	61
Populating DIMM Sockets	62
Installing Memory Modules	63
Expansion Cards	65
Cable Management	69
Cable Connections	71
Drives	72
Drive Positions	72
Installing Additional Drives	73
System Board Drive Connections	74
Removing an Optical Drive	75
Installing an Optical Drive into the 5.25-inch Drive Bay	76
Removing an External 3.5-inch Drive	78
Installing a Drive into the 3.5-inch External Drive Bay	80
Removing an Internal 3.5-inch Hard Drive	81
Installing an Internal 3.5-inch Hard Drive	84
Front I/O and USB Panel Housing Assembly	87
Power Switch/LED Assembly	88
Speaker	89
System Fan	90
Heatsink assembly	91
Processor	92
Power Supply	93
System Board	94
Battery	95
Type 1 Battery Holder	96
Type 2 Battery Holder	96
Type 3 Battery Holder	97
Installing a Security Lock	98
Cable Lock	98
Padlock	98
HP Business PC Security Lock	99
Removal and Replacement Procedures Small Form Factor (SFF) Chassis	101
Preparation for Disassembly	101
Access Panel	102
Front Bezel	103
Bezel Blanks	104
Cable Management	105
Cable Connections	106
Drives	107
Drive Positions	107
Installing Additional Drives	108
System Board Drive Connections	110
Removing an Optical Drive	111
Installing an Optical Drive into the 5.25-inch Drive Bay	113
Removing an External 3.5-inch Drive	115
Installing a Drive into the 3.5-inch External Drive Bay	118
Removing an Internal 3.5-inch Hard Drive	121
Installing an Internal 3.5-inch Hard Drive	123
Memory	125
DDR2-SDRAM DIMMs	125
Populating DIMM Sockets	126
Installing DIMMs	127
Removing or Installing an Expansion Card	130
Plastic Wire/Cable Fastener and Clips	135
Front I/O Device	136
Power Switch Assembly	137
Speaker	138
Heatsink	139
Processor	140
Power Supply	141
System Board	142
Battery	144
Type 1 Battery Holder	145
Type 2 Battery Holder	145
Type 3 Battery Holder	146
Installing a Security Lock	147
Cable Lock	147
Padlock	147
HP Business PC Security Lock	148
Connector Pin Assignments	150
Keyboard	150
Mouse	150
USB	151
Microphone	151
Headphone	151
Line-in Audio	151
Line-out Audio	151
Monitor	152
24-Pin Power	152
PCI Express	153
PCI Express	154
4-Pin Power (for CPU)	155
DVI Connector	155
SPDIF	155
Power Cord Set Requirements	156
General Requirements	156
Japanese Power Cord Requirements	156
Country-Specific Requirements	157
Troubleshooting Without Diagnostics	158
Safety and Comfort	158
Before You Call for Technical Support	158
Helpful Hints	159
Solving General Problems	161
Solving Power Problems	164
Solving Diskette Problems	165
Solving Hard Drive Problems	167
Solving Media Card Reader Problems	169
Solving Display Problems	170
Solving Audio Problems	174
Solving Printer Problems	175
Solving Keyboard and Mouse Problems	176
Solving Hardware Installation Problems	178
Solving Network Problems	180
Solving Memory Problems	182
Solving CD-ROM and DVD Problems	183
Solving USB Flash Drive Problems	185
Solving Front Panel Component Problems	186
Solving Internet Access Problems	187
Solving Software Problems	189
Interpreting POST Audible Codes	190
Resetting the Password Jumper	191
Resetting the CMOS Jumper	192
Contacting Customer Support	193
Specifications	194
Minitower	194
Small Form Factor	195

Match case Limit results 1 per page

There is no sound or sound volume is too low.

Cause

Solution

System volume may be set low or muted.

Check the F10 BIOS settings to make sure the internal

system speaker is not muted (this setting does not affect

the external speakers).

Make sure the external speakers are properly connected

and powered on and that the speakers' volume control is

set correctly.

Use the system volume control available in the operating

system to make sure the speakers are not muted or to

increase the volume.

Poor performance is experienced.

Cause

Solution

Processor is hot.

Make sure airflow to the computer is not blocked. Leave

a 10.2-cm (4-inch) clearance on all vented sides of the

computer and above the monitor to permit the required

airflow.

Make sure fans are connected and working properly

(some fans only operate when needed).

Make sure the processor heatsink is installed properly.

Hard drive is full.

Transfer data from the hard drive to create more space on the

hard drive.

Low on memory.

Add more memory.

Hard drive fragmented.

Defragment hard drive.

Program previously accessed did not release reserved

memory back to the system.

Restart the computer.

Virus resident on the hard drive.

Run virus protection program.

Too many applications running.

Close unnecessary applications to free up memory.

Add more memory. Some applications run in the

background and can be closed by right-clicking on their

corresponding icons in the task tray. To prevent these

applications from launching at startup, go to

Start

Run

(Windows XP) or

Start

Accessories

Run

(Windows Vista) and type

msconfig

. On the

Startup

tab

of the System Configuration Utility, clear applications that

you do not want to launch automatically.

Some software applications, especially games, are stressful

on the graphics subsystem

Lower the display resolution for the current application or

consult the documentation that came with the application

for suggestions on how to improve performance by

adjusting parameters in the application.

Add more memory.

Upgrade the graphics solution.

Cause unknown.

Restart the computer.

Table C-1

Solving General Problems (continued)

152

Appendix C

Troubleshooting Without Diagnostics