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Service Reference Guide, dc5000 360201-002 D–11
Troubleshooting Without Diagnostics
High pitched noise coming
from inside a flat panel
monitor.
Brightness and/or
contrast settings are too
high.
Lower brightness and/or contrast
settings.
Fuzzy focus; streaking,
ghosting, or shadowing
effects; horizontal scrolling
lines; faint vertical bars; or
unable to center the picture
on the screen.
(flat panel monitors using
an analog VGA input
connection only)
Flat panel monitor’s
internal digital
conversion circuits may
be unable to correctly
interpret the output
synchronization of the
graphics card.
1. Select the monitor’s
Auto-Adjustment option in the
monitor’s on-screen display
menu.
2. Manually synchronize the Clock
and Clock Phase on-screen
display functions. Download
SoftPaq SP20930 or SP22333,
depending on the monitor, to
assist with the synchronization.
Certain typed symbols do
not appear correct.
The font you are using
does not support that
particular symbol.
Use the Character Map to locate the
and select the appropriate symbol.
Click Start > All Programs >
Accessories > System Tools >
Character Map. You can copy
the symbol from the Character Map
into a document.
Solving Display Problems (Continued)
Problem Cause Solution
- 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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