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D–14 483941-001 Service Reference Guide
Troubleshooting Without Diagnostics
Solving Network Problems
These guidelines do not discuss the process of debugging the network cabling.
Solving Network Problems
Problem Cause Solution
Wake-on-LAN feature is
not functioning.
Wake-on-LAN is not
enabled.
Use the Network control application
to enable Wake-on-LAN.
Network driver does
not
detect network
controller.
Network controller is
disabled.
Run Computer Setup and enable
network controller.
Incorrect network driver. Check the network controller
documentation for the correct driver
or obtain the latest driver from the
manufacturer’s Web site.
Network status link light
does not turn on or it
never flashes.
✎
The network status
light should flash
when there is
network activity.
No active network is
detected.
Check cabling and network
equipment for proper connection.
Network controller is not
set up properly.
Use the Network control application
to verify that the device is
working
properly.
Network driver is not
properly loaded.
Reinstall network drivers.
System cannot autosense
the network.
Disable auto-sensing capabilities
and force the system into the correct
operating mode.
Diagnostics reports a
failure.
The cable is not securely
connected.
Ensure that both ends of the data
cable are securely connected.
The cable is attached to
the incorrect connector.
Ensure that the cable is attached to
the correct connector.
There is a problem with
the cable or a device at
the other end of the cable.
Ensure that the cable and device at
the other end are operating
correctly.
Network controller
interrupt is shared with
an
expansion board.
Under the Computer Setup
Advanced menu, change the
resource settings for the board.
The network controller
is
defective.
Replace the NIC or replace the
system board if the NIC is
embedded.
Diagnostics passes, but
the computer does not
communicate with the
network.
Network drivers are
not
loaded, or driver
parameters do not match
current configuration.
1. Make sure the network drivers
are
loaded and that the driver
parameters match the
configuration of the network
controller.
2. Make sure the correct network
client and protocol is installed.
- 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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