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Compaq dx2818 Service Reference Guide: HP Compaq dx2810 and dx2818 Business PC - Page 152

Solving Hardware Installation Problems

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Blank screen (no video). Cause Solution You are using a fixed-sync monitor and it will not Be sure that the monitor can accept the same sync at the resolution chosen. horizontal scan rate as the resolution chosen. Monitor cable is plugged into the wrong connector. Ensure that the monitor is plugged into an active connector on the rear of the computer. If another connector is available, connect the monitor to that connector and reboot the system. Bad monitor. Try a different monitor. Computer is beeping and will not start. Cause Internal error has occurred and the computer is beeping a code. Solution Refer to Interpreting POST Diagnostic Front Panel LEDs and Audible Codes on page 143 to interpret the error code. Solving Hardware Installation Problems You may need to reconfigure the computer when you add or remove hardware, such as an additional drive or expansion card. If you install a plug and play device, the Windows operating system automatically recognizes the device and configures the computer. If you install a non-plug and play device, you must reconfigure the computer after completing installation of the new hardware. In the Windows operating system, use the Add Hardware Wizard and follow the instructions that appear on the screen. WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system board. To reduce the risk of personal injury from electrical shock, rotating fans, and/or hot surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching. Look for the LED on the system board. If the LED is illuminated, the system still has power. Power off the computer and remove the power cord before proceeding. A new device is not recognized as part of the system. Cause Solution Device is not seated or connected properly. Ensure that the device is properly and securely connected and that pins in the connector are not bent down. Cable(s) of new external device are loose or power cables are unplugged. Ensure that all cables are properly and securely connected and that pins in the cable or connector are not bent down. Power switch of new external device is not turned Turn off the computer, turn on the external device, on. then turn on the computer to integrate the device with the computer system. When the system advised you of changes to the Reboot the computer and follow the instructions configuration, you did not accept them. for accepting the changes. 142 Appendix C Troubleshooting

Section	Page
Product Features	11
Front Panel Components	11
Rear Panel Components	13
Keyboard	15
Using the Windows Logo Key	16
Serial Number Location	17
Installing and Customizing the Software	18
Installing the Operating System	18
Installing or Upgrading Device Drivers	18
HP Backup and Recovery Manager	18
Computer Setup (F10) Utility	20
Computer Setup (F10) Utilities	20
Using Computer Setup (F10) Utilities	20
Computer Setup—Main	21
Computer Setup—Advanced	22
Computer Setup—Power	24
Computer Setup—Boot	25
Computer Setup—Exit	26
Recovering the Configuration Settings	26
Computer Diagnostic Features	27
HP Insight Diagnostics	27
Accessing HP Insight Diagnostics	27
Survey Tab	28
Diagnose Tab	28
Test Tab	29
Status Tab	30
Log Tab	31
Help Tab	31
Saving and Printing Information in HP Insight Diagnostics	31
Downloading the Latest Version of HP Insight Diagnostics	32
Protecting the Software	32
HP Backup and Recovery Manager	33
Serial ATA (SATA) Drive Guidelines and Features	34
SATA Hard Drives	34
SATA Hard Drive Cables	34
SATA Data Cable	34
SMART ATA Drives	35
Hard Drive Capacities	35
Identifying the Chassis, Routine Care, and Disassembly Preparation	36
Chassis Designations	36
Microtower (MT)	36
Small Form Factor (SFF)	38
Electrostatic Discharge Information	38
Generating Static	38
Preventing Electrostatic Damage to Equipment	39
Personal Grounding Methods and Equipment	39
Grounding the Work Area	40
Recommended Materials and Equipment	40
Operating Guidelines	41
Routine Care	42
General Cleaning Safety Precautions	42
Cleaning the Computer Case	42
Cleaning the Keyboard	42
Cleaning the Monitor	43
Cleaning the Mouse	43
Service Considerations	43
Power Supply Fan	43
Tools and Software Requirements	43
Screws	44
Cables and Connectors	44
Hard Drives	44
Lithium Coin Cell Battery	45
Removal and Replacement Procedures Microtower (MT) Chassis	46
Serial Number Location	46
Preparation for Disassembly	47
Access Panel	48
Front Bezel	49
Bezel Blanks	50
Memory	51
DIMMs	51
DDR2-SDRAM DIMMs	51
Populating DIMM Sockets	52
Installing DIMMs	53
Expansion Cards	55
Cable Management	59
Cable Connections	60
Drives	61
Drive Positions	61
Installing Additional Drives	62
System Board Drive Connections	64
Removing an Optical Drive	65
Installing an Optical Drive into the 5.25-inch Drive Bay	66
Removing an External 3.5-inch Drive	67
Installing a Drive into the 3.5-inch External Drive Bay	69
Removing an Internal 3.5-inch Hard Drive	70
Installing an Internal 3.5-inch Hard Drive	73
Front I/O and USB Panel Housing Assembly	76
Power Switch/LED Assembly	77
System Fan	78
Heatsink assembly	79
Processor	80
Power Supply	81
System Board	83
Battery	85
Type 1 Battery Holder	86
Type 2 Battery Holder	86
Type 3 Battery Holder	87
Installing a Security Lock	88
Cable Lock	88
Padlock	88
HP Business PC Security Lock	89
Hood Sensor	91
Port Cover	92
Removal and Replacement Procedures Small Form Factor (SFF) Chassis	93
Preparation for Disassembly	93
Access Panel	94
Front Bezel	95
Bezel Blanks	96
Cable Management	97
Cable Connections	98
Drives	99
Drive Positions	99
Installing Additional Drives	100
System Board Drive Connections	101
Removing an Optical Drive	102
Installing an Optical Drive into the 5.25-inch Drive Bay	103
Removing an External 3.5-inch Drive	105
Installing a Drive into the 3.5-inch External Drive Bay	107
Removing an Internal 3.5-inch Hard Drive	110
Installing an Internal 3.5-inch Hard Drive	112
Memory	114
DDR2-SDRAM DIMMs	114
Populating DIMM Sockets	115
Installing DIMMs	116
Removing or Installing an Expansion Card	119
Plastic Wire/Cable Fastener and Clips	123
Front I/O Device	124
Power Switch Assembly	125
Speaker	126
Heatsink	127
Processor	128
Power Supply	129
System Board	131
Battery	132
Type 1 Battery Holder	133
Type 2 Battery Holder	133
Type 3 Battery Holder	134
Installing a Security Lock	135
Cable Lock	135
Padlock	135
HP Business PC Security Lock	136
Connector Pin Assignments	138
Keyboard	138
Mouse	138
Ethernet BNC	138
Parallel Interface	139
Serial Interface, Powered and Non-Powered	139
USB	140
Microphone	140
Headphone	140
Line-in Audio	140
Line-out Audio	140
Monitor	141
24-Pin Power	141
PCI Express	142
PCI Express	143
4-Pin Power (for CPU)	144
Power Cord Set Requirements	145
General Requirements	145
Japanese Power Cord Requirements	145
Country-Specific Requirements	146
Troubleshooting	147
Safety and Comfort	147
Before You Call for Technical Support	147
Helpful Hints	148
Solving General Problems	149
Solving Hardware Installation Problems	152
Interpreting POST Diagnostic Front Panel LEDs and Audible Codes	153
Contacting Customer Support	155
Specifications	156
Microtower	156
Small Form Factor	157

Match case Limit results 1 per page

Blank screen (no video).

Cause

Solution

You are using a fixed-sync monitor and it will not

sync at the resolution chosen.

Be sure that the monitor can accept the same

horizontal scan rate as the resolution chosen.

Monitor cable is plugged into the wrong connector.

Ensure that the monitor is plugged into an active

connector on the rear of the computer. If another

connector is available, connect the monitor to that

connector and reboot the system.

Bad monitor.

Try a different monitor.

Computer is beeping and will not start.

Cause

Solution

Internal error has occurred and the computer is

beeping a code.

Refer to

Interpreting POST Diagnostic Front

Panel LEDs and Audible Codes

on page

143

interpret the error code.

Solving Hardware Installation Problems

You may need to reconfigure the computer when you add or remove hardware, such as an additional

drive or expansion card. If you install a plug and play device, the Windows operating system

automatically recognizes the device and configures the computer. If you install a non–plug and play

device, you must reconfigure the computer after completing installation of the new hardware. In the

Windows operating system, use the

Add Hardware Wizard

and follow the instructions that appear on

the screen.

WARNING!

When the computer is plugged into an AC power source, voltage is always applied to the

system board. To reduce the risk of personal injury from electrical shock, rotating fans, and/or hot

surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system

components to cool before touching.

Look for the LED on the system board. If the LED is illuminated, the system still has power. Power off

the computer and remove the power cord before proceeding.

A new device is not recognized as part of the system.

Cause

Solution

Device is not seated or connected properly.

Ensure that the device is properly and securely

connected and that pins in the connector are not

bent down.

Cable(s) of new external device are loose or

power cables are unplugged.

Ensure that all cables are properly and securely

connected and that pins in the cable or connector

are not bent down.

Power switch of new external device is not turned

on.

Turn off the computer, turn on the external device,

then turn on the computer to integrate the device

with the computer system.

When the system advised you of changes to the

configuration, you did not accept them.

Reboot the computer and follow the instructions

for accepting the changes.

142

Appendix C

Troubleshooting