HP COMPAQ DX2710 MT Technical Information Page 82
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D–2 483941-001 Service Reference Guide
Troubleshooting Without Diagnostics
Solving General Problems
You may be able to easily resolve the minor problems described in this section. If a problem
persists and you are unable to resolve it yourself or if you feel uncomfortable about performing
the operation, contact your HP authorized reseller or service provider.
Problem Cause Solution
Computer will not
turn
on.
Cables to the external
power source are
unplugged.
Ensure that cables connecting the
computer to the external power source
are plugged in properly and the wall
outlet is active.
Voltage selector switch on
the rear of the computer
chassis is not switched to
the correct voltage (115V
or 230V).
Select the proper AC voltage using the
slide switch.
A defective PCI card has
been installed.
Remove any expansion board that
was just installed.
Drive data or power supply
cables may
not be
properly connected.
Reseat drive data and power supply
cables.
The unit temperature was
exceeded. The fan may be
blocked.
1. Unit is in an exceedingly hot
environment. Let it cool down.
2. Ensure that computer air vents are
not blocked and the internal fan is
running.
3. Contact an HP authorized reseller
or service provider.
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 the power cord from
the electrical outlet.
Computer will not
respond to USB
keyboard or mouse.
Computer is in
standby
mode.
Press the power button to resume from
standby mode.
Keyboard or mouse is not
connected to computer.
Connect keyboard and mouse cables
to computer.
System has locked up. Restart the computer.
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 any unsaved data.
- Business PCs 1
- 1st Edition 1
- Service Reference Guide 2
- First Edition (February 2008) 3
- Contents 4
- A Connector Pin Assignments 6
- B Power Cord Set Requirements 6
- C POST Error Messages 6
- E Memory 6
- Redflag Linux 7
- 1.3 HP Software 8
- 2.1 Power-On Self-Test (POST) 9
- 2.2 Computer Setup Utilities 10
- 2.2.2 Computer Setup Menu 12
- Computer Setup (Continued) 13
- 2.3.1 Backing up the CMOS 19
- 2.3.2 Restoring the CMOS 19
- Desktop Management 20
- 3.2.2 Dual-State Power Button 21
- 3.2.3 Power Management 21
- 3.3 Security 22
- Entering a User Password 23
- Clearing Passwords 25
- 4.1 SATA 3.0 Hard Drives 26
- 4.2 SATA Hard Drive Cables 27
- 4.3 SATA SMART Drives 28
- 4.4 Drive Capacities 28
- 4.5 SATA BIOS 28
- Disassembly Preparation 29
- 5.2.1 Generating Static 31
- 5.2.4 Grounding the Work Area 32
- 5.3 Routine Care 33
- 5.3.3 Cleaning the Keyboard 34
- 5.3.4 Cleaning the Monitor 34
- 5.3.5 Cleaning the Mouse 34
- 5.4 Service Considerations 35
- 5.4.3 Cables and Connectors 36
- 5.4.4 Hard Drives 36
- MT chassis and SFF chassis) 38
- (SFF chassis) 40
- Removing the Front Bezel 41
- Minitower Configuration 42
- 6.4 Front Drive Bezels 43
- 6.5 Memory 44
- Installing a DIMM 46
- 6.6 Expansion Cards 47
- Installing an Expansion Card 50
- 6.7 Cable Management 52
- 6.8 Drives 53
- 6.8.2 Removing a Drive 54
- Removing the Hard disk 55
- Releasing the Hard Drive Cage 55
- Removing the Hard Drive Cage 56
- Removing the Hard Drive 57
- Desktop Drive Positions 57
- Installing the Optical Drive 60
- 6. Press the latch 1 63
- 6.10 System Fan 65
- 6.11 Heatsink - MT chassis 66
- 6.12 Processor 67
- 6.13 System Board 69
- 6.14 Battery 70
- 6.14.1 Battery Holder 71
- 6.15 Power Supply 72
- Connector Pin Assignments 73
- Parallel Interface 74
- Microphone 74
- Headphone 75
- Line-In Audio 75
- Line-Out Audio 75
- 24-Pin Power 76
- 4-Pin Power (for CPU) 76
- Power Cord Set Requirements 77
- POST Error Messages 78
- Preliminary Checklist 81
- Solving General Problems 82
- Solving Display Problems 87
- Solving Audio Problems 90
- Solving Printer Problems 92
- Solving Keyboard Problems 93
- Solving Network Problems 94
- Solving Memory Problems 96
- Solving Processor Problems 97
- Solving Drive Key Problems 99
- Restoring the Software 105
- Contacting Customer Support 106
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