HP Compaq dc5000S Informations techniques Page 142
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D–2 360201-002 Service Reference Guide, dc5000
Troubleshooting Without Diagnostics
Solving Minor Problems
Solving Minor Problems
Problem Cause Possible Solution
Computer appears
locked up and will not
turn off when the power
button is pressed.
Software control of the
power switch is not
functional.
1. Press and hold the power button
for at least four seconds until the
computer turns off.
2. Disconnect electrical plug from
outlet.
Computer will not
respond to USB
keyboard or mouse.
Computer is in
standby
mode.
Press the power button to resume from
standby mode.
Ä
CAUTION: When attempting to resume from standby mode, do not hold down the power
button for more than four seconds. Otherwise, the computer will shut down and you will lose
your data.
Computer date and
time display is incorrect.
RTC (real-time clock)
battery may need to be
replaced.
1. Reset the date and time under
Control Panel.
2. Replace the RTC battery.
Computer appears to
pause periodically.
Network driver is loaded
and no network
connection is established.
Establish a network connection, or
use Computer Setup or Microsoft
Windows Device Manager to disable
the network controller.
Cursor will not move
using the arrow keys on
the keypad.
The Num Lock key
may
be on.
Press the Num Lock key. The Num
Lock key can be disabled (or
enabled) in Computer Setup.
Poor performance is
experienced.
Processor is hot. 1. Ensure airflow to the computer is
not blocked.
2. Ensure the fans are connected
and working properly (some fans
only operate when needed).
3. Ensure the processor heatsink is
installed properly.
Hard drive is full. Transfer data from the hard drive to
create more space on the hard drive.
- 2nd edition 1
- Service Reference Guide 3
- 1st Edition (March 2004) 4
- 2nd Edition (April 2004) 4
- Contents 5
- 1.1 HP Software 10
- 2.2 Computer Setup Utilities 12
- 2.2.2 Computer Setup Menu 14
- 2.3 Diagnostics for Windows 22
- 2.4 Configuration Record 26
- 2.6 Protecting the Software 27
- 2.7 Restoring the Software 28
- Desktop Management 29
- 3.3.3 System Software Manager 31
- 3.4 ROM Flash 32
- 3.4.3 FailSafe Boot Block ROM 33
- 3.4.4 Replicating the Setup 34
- 3.4.5 Dual-State Power Button 34
- 3.4.6 Power Management 35
- 3.4.7 World Wide Web Site 35
- 3.5.1 Password Security 38
- Entering a Power-On Password 39
- Entering a Setup Password 39
- Clearing Passwords 41
- 3.5.4 DriveLock 42
- Using DriveLock 43
- DriveLock Applications 43
- 3.5.7 Cable Lock Provision 45
- 3.6.1 Drive Protection System 46
- 3.6.3 Thermal Sensor 46
- 4.1 Ultra ATA Jumpers 47
- 4.2 Ultra ATA Cables 47
- Single-Drive Cable 48
- Two-Drive Cable 48
- 4.3.1 Device Classes 49
- 4.4 SMART 52
- 4.5 Drive Capacities 53
- Disassembly Preparation 55
- 5.2.1 Generating Static 57
- 5.2.4 Grounding the Work Area 58
- 5.3 Routine Care 59
- 5.3.3 Cleaning the Keyboard 60
- 5.3.4 Cleaning the Monitor 60
- 5.3.5 Cleaning the Mouse 60
- 5.4 Service Considerations 61
- 5.4.4 Cables and Connectors 62
- 5.4.5 Hard Drives 62
- Microtower (µT) Chassis 63
- 6.2.2 Installing a Padlock 65
- 6.3 Access Panel 66
- 6.4 Front Bezel 67
- To reinstall the front bezel 69
- 6.5 Front Drive Bezels 70
- 6.5.2 Diskette Drive Bezel 71
- 6.6 Memory Modules 72
- 6.7 Expansion Cards 73
- 6.7.2 PCI Expansion Card 74
- 6.8 Drives 76
- 6.8.2 Removing a Drive 77
- Releasing the Drives 78
- 6.8.3 Installing a Drive 79
- Connecting Hard Drive Cables 81
- 6.9 Chassis Fan 82
- 6.11 Front I/O Devices 84
- 6.12 Power Switch Assembly 85
- 6.13 Processor and Heatsink 87
- 6.14 System Board 88
- 6.15 Battery 89
- 6.15.1 Type 1 Battery Holder 90
- 6.15.2 Type 2 Battery Holder 91
- 6.15.3 Type 3 Battery Holder 92
- 6.16 Speaker 93
- 6.17 Power Supply 94
- 7.2.1 Cable Lock 96
- 7.2.2 Pa d loc k 97
- 7.3 Com puter Access Pan el 98
- 7.4 Front Bezel 99
- 7.5 Front Drive Bezels 100
- 7.6 M emor y Modules 101
- 7.7 PCI Expansion Card 102
- 7.8 D r ives 105
- 7.8.2 Cable Routing 106
- 7.8.3 Optical Drive 107
- 7.8.5 Primar y H ard Drive 112
- 7.9 Fro n t I/O Devices 114
- 7.10 Power Switch Assembly 115
- 7.11 Sys t em Board 116
- 7.12 C h assis Fan 117
- 7.13 B a t te r y 118
- 7.14 Processor and Heatsink 121
- 7.15 S peaker 122
- 7.16 Power Supply 123
- Connector Pin Assignments 125
- Ethernet RJ-45 126
- Ethernet AUI 126
- Parallel Interface 127
- Microphone 127
- Headphone 128
- Line-In Audio 128
- Line-Out Audio 128
- Ultra SCSI 129
- External Infrared Transceiver 129
- 20-Pin Power 130
- 4-Pin Power (for CPU) 130
- Power Cord Set Requirements 131
- Country-Specific Requirements 132
- POST Error Messages 133
- Preliminary Checklist 141
- Solving Minor Problems 142
- Solving Power Supply Problems 144
- Solving Diskette Problems 145
- Solving Hard Drive Problems 146
- Solving Display Problems 149
- Solving Audio Problems 152
- Solving Printer Problems 154
- Solving Keyboard Problems 155
- Solving Network Problems 158
- Solving Memory Problems 160
- Solving Processor Problems 161
- Solving Drive Key Problems 163
- Designators 169
- AMD-Based Systems 171
- Intel-Based Systems 171
- DIMM Sockets 172
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