HP Compaq Business Desktop dx2000 Technical Information Page 84
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D–10 359782-002 Service Reference Guide, dx2000 uT
Troubleshooting Without Diagnostics
Power LED flashes Red six
times, once every second,
followed by a two second
pause, and the computer
beeps six times.
Pre-video graphics
error.
For systems with a graphics card:
1. Reseat the graphics card.
2. Replace the graphics card.
3. Replace the system board.
For systems with integrated
graphics, replace the system board.
Monitor does not function
properly when used with
energy saver features.
Monitor without energy
saver capabilities is
being used with energy
saver features enabled.
Disable monitor energy saver
feature.
Dim characters. The brightness and
contrast controls are not
set properly.
Adjust the monitor brightness and
contrast controls.
Cables are not properly
connected.
Check that the graphics cable is
securely connected to the graphics
card and the monitor.
Blurry video or requested
resolution cannot be set.
If the graphics
controller was
upgraded, the correct
video drivers may not
be loaded.
Install the video drivers included in
the upgrade kit.
Monitor is not capable
of displaying requested
resolution.
Change requested resolution.
The picture is broken up,
rolls, jitters, or flashes.
The monitor
connections may be
incomplete or the
monitor may be
incorrectly adjusted.
1. Be sure the monitor cable is
securely connected to the
computer.
2. In a two-monitor system or if
another monitor is in close
proximity, be sure the monitors
are not interfering with each
other’s electromagnetic field by
moving them apart.
3. Fluorescent lights or fans may
be too close to the monitor.
Monitor needs to be
degaussed.
Degauss the monitor.
Vibrating or rattling noise
coming from inside a CRT
monitor when powered on.
Monitor degaussing
coil has been activated.
None. It is normal for the
degaussing coil to be activated
when the monitor is powered on.
Solving Display Problems (Continued)
Problem Cause Solution
- Personal Computers 1
- 2st Edition 1
- Service Reference Guide 3
- Contents 5
- 1.1 Microsoft Windows XP 9
- 1.2 Converting to NTFS 10
- 1.3 HP Software 10
- 2.1 Power-On Self-Test (POST) 11
- 2.2 Computer Setup Utilities 12
- 2.2.2 Computer Setup Menu 14
- 2.4 Restoring the Software 18
- 2.3 Protecting the Software 18
- Desktop Management 19
- 3.2.1 FailSafe Boot Block ROM 20
- 3.2.2 Dual-State Power Button 20
- 3.2.3 Power Management 21
- 3.2.4 World Wide Web Site 21
- 3.3 Security 22
- Entering a Power-On Password 23
- Entering a Setup Password 23
- Clearing Passwords 25
- 4.1 Ultra ATA Jumpers 27
- 4.2 Ultra ATA Cables 27
- Single-Drive Cable 28
- Two-Drive Cable 28
- 4.3.1 Device Classes 29
- 4.4 SMART 32
- 4.5 Drive Capacities 33
- Disassembly Preparation 35
- 5.2.1 Generating Static 36
- 5.2.4 Grounding the Work Area 37
- 5.3 Routine Care 38
- 5.3.3 Cleaning the Keyboard 39
- 5.3.4 Cleaning the Monitor 39
- 5.3.5 Cleaning the Mouse 39
- 5.4 Service Considerations 40
- 5.4.4 Cables and Connectors 41
- 5.4.5 Hard Drives 41
- Microtower (µT) Chassis 43
- 6.2 Access Panel 44
- 6.3 Front Bezel 45
- 6.4 Front Drive Bezels 46
- 6.4.2 Diskette Drive Bezel 47
- 6.5 Memory 48
- 6.6 Expansion Card 50
- 6.7 Drives 51
- 6.8 Front USB Device 56
- 6.9 Power Switch Assembly 57
- 6.10 Speaker 58
- 6.11 System Fan 59
- 6.12 Processor and Heatsink 60
- 6.13 System Board 61
- 6.14 Battery 62
- 6.15 Power Supply 64
- Connector Pin Assignments 65
- Parallel Interface 66
- Microphone 66
- Headphone 67
- Line-In Audio 67
- Line-Out Audio 67
- 20-Pin Power 68
- 4-Pin Power (for CPU) 68
- Power Cord Set Requirements 69
- Country-Specific Requirements 70
- POST Error Messages 71
- Preliminary Checklist 75
- Solving Minor Problems 76
- Solving Power Supply Problems 78
- Solving Diskette Problems 79
- Solving Hard Drive Problems 80
- Solving Display Problems 83
- Solving Audio Problems 86
- Solving Printer Problems 88
- Solving Keyboard Problems 89
- Solving Network Problems 92
- Solving Memory Problems 94
- Solving Processor Problems 95
- Solving Drive Key Problems 97
- DIMM Sockets 102
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