HP xw6400 User's Guide Page 121
- Page / 208
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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Troubleshooting scenarios and solutions
This section presents an extensive overview of various troubleshooting scenarios and includes possible
solutions for each.
Solving minor problems
Table 5-3 Minor problems
Problem Cause Possible Solution
Workstation appears locked
up and will not shut down 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 workstation shuts down.
2. Disconnect electrical plug from outlet.
Workstation seems to be
locked up.
Program in use has stopped
responding to commands.
1. Attempt the normal Windows shutdown procedure.
2. Restart the workstation using the power button.
Workstation date and time
display is incorrect.
Real-time clock (RTC) battery
might need to be replaced.
1. Reset the date and time under Control Panel.
2. Replace the RTC battery.
Workstation 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 might 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. Be sure airflow to the workstation is not blocked.
2. Be sure the fans are connected and working properly
(some fans only operate when needed).
3. Be sure the CPU heatsink is installed properly.
Hard drive is full. Transfer data from the hard drive to create more space on
the hard drive.
Workstation powered off
automatically and the Power
LED flashes red 2 times, once
every second, followed by a 2-
second pause, and two
simultaneous beeps are
heard.
Processor thermal protection
activated.
A fan might be blocked or not
turning.
OR
The CPU heatsink is not properly
attached to the processor.
1. Be sure workstation air vents are not blocked and the
cooling fan is running.
2. Open the access panel, press the power button, and
see if the processor fan spins. If not spinning, be sure
the fan’s cable is plugged into the system board
header. Be sure the fan is fully/properly seated or
installed.
3. Replace the processor fan.
4. Reseat CPU heatsink and verify that the fan assembly
is properly attached.
System does not power on,
and the LEDs on the front of
the workstation are not
flashing.
System unable to power on. Press and hold the power button for less than 4 seconds. If
the hard drive LED turns green, then:
1. Remove the expansion cards.
2. Replace the system board.
OR
ENWW Troubleshooting scenarios and solutions 111
- Technical Reference Guide 1
- Table of contents 5
- 1 Product overview 11
- Product features 12
- Front panel components 13
- Rear panel components 14
- ENWW Product features 5 15
- Product specifications 16
- Power supply specifications 17
- Power consumption 18
- Environmental specifications 19
- ENERGY STAR 21
- Linux-enabled workstations 25
- HP software 27
- The RestorePlus! process 28
- Recovery Partition 29
- Protecting the software 30
- Ordering backup software 31
- 3 System management 33
- Computer Setup (F10) Utility 34
- BIOS ROM 35
- Desktop management 44
- HP Client Manager Software 45
- System Software Manager 46
- Proactive Change Notification 46
- Subscriber’s Choice 46
- ROM flash 47
- Replicating the setup 48
- Dual-State Power Button 50
- HP support website 50
- Asset tracking and security 51
- Password security 52
- Arabic / Greek - Russian / 55
- Drive Protection System 59
- Thermal sensor 59
- Service considerations 62
- Grounding the work area 63
- Cables and connectors 65
- Hard drives 65
- Lithium coin cell battery 65
- Customer Self-Repair 66
- Predisassembly procedures 67
- System board components 68
- Disassembly order 70
- Security lock (optional) 71
- Cable lock (optional) 72
- Side access panel 73
- Front Bezel 74
- Bezel blanks 75
- Top cover 75
- Memory fan 79
- System fan assembly 81
- Power supply 81
- Memory 82
- Installing memory module 83
- PCI Slots 84
- PCI retainer 85
- PCI Express 86
- PCI removal 87
- PCI Express removal 88
- PCI installation 89
- PCI Express installation 90
- Battery 92
- Power connections to drives 93
- Optical drive 94
- Diskette drive (optional) 96
- Hard drive 98
- CPU heatsink 101
- Replacing the CPU heatsink 102
- Processor 104
- Replacing the processor 105
- System board 106
- Replacing the system board 107
- 5 System diagnostics and 109
- E-Support 110
- Troubleshooting checklist 111
- LED color definitions 112
- Key features and benefits 113
- Theory of operation 113
- Diagnostic Utility on CD 113
- User Interface 114
- Test tab 115
- Status tab 116
- Help tab 117
- Diagnostic error codes 118
- Solving minor problems 121
- Solving power supply problems 122
- Problem Cause Solution 123
- Power supply shuts down 123
- Solving diskette problems 124
- Solving display problems 127
- Solving audio problems 128
- Solving printer problems 129
- Solving network problems 133
- Solving memory problems 134
- Solving processor problems 135
- POST and error messages 138
- A Appendix A — SAS devices 147
- SAS RAID 0 configuration 149
- SAS RAID 1 configuration 150
- SAS RAID 1E configuration 152
- B Appendix B — SATA devices 155
- Attaching SATA HDDs 156
- Configuring system BIOS 157
- Creating RAID volumes 158
- Deleting RAID volumes 159
- C Appendix C — Connector pins 161
- Connector pin descriptions 162
- D Appendix D — System board 171
- E Appendix E — Routine care 173
- Maximizing the airflow 175
- Cleaning the workstation case 176
- Cleaning the keyboard 177
- Cleaning the monitor 178
- Cleaning the mouse 179
- Using the CMOS Button 183
- Initial troubleshooting 186
- No power 187
- No power, part 2 188
- No power, part 3 189
- No video 190
- No video, part 2 191
- No video, part 3 192
- Error messages 193
- Error messages, part 2 194
- Error messages, part 3 195
- No operating system loading 196
- Non-functioning device 203
- H Appendix H — PCI bus layout 205
- Figure H-1 PCI bus layout 206
- Bus# Dev# Fn# Device# 208
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