HP
manual
Troubleshooting Guide dc5850 Models
Troubleshooting
Error messages
Password
Device Configuration
Solving General Problems
HP Insight Diagnostics
HP Backup and Recovery Manager
Safety
Cause Solution
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Troubleshooting Guide - dc5850 Models
HP Compaq Business PCs
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Contents
Troubleshooting Guide dc5850 Models
Troubleshooting Guide
Iii
Iv About This Book
Table of contents
Accessing DPS Through Computer Setup
Appendix B Password Security and Resetting Cmos
HP Insight Diagnostics
HP Insight Diagnostics
Survey Tab
Test Tab
Log Tab
Select a language and click Download
Protecting the Software
Protecting the Software
HP Backup and Recovery Manager
Safety and Comfort
Safety and Comfort Before You Call for Technical Support
Helpful Hints
Helpful Hints
1Solving General Problems
Solving General Problems
Computer date and time display is incorrect Cause Solution
There is no sound or sound volume is too low Cause Solution
Solving General Problems
Poor performance is experienced Cause Solution
Cause Solution
Enww
2Solving Power Problems
Solving Power Problems
Power supply shuts down intermittently Cause Solution
Solving Diskette Problems
Solving Diskette Problems
3Solving Diskette Problems
Problem has occurred with a disk transaction Cause Solution
Cannot format diskette Cause Solution
Diskette drive cannot read a diskette Cause Solution
Invalid system disk message is displayed Cause Solution
Boot
Storage Boot Order
Security Password Options
Storage Storage Options Removable Media
4Solving Hard Drive Problems
Solving Hard Drive Problems
Hard drive error occurs Cause Solution
Disk transaction problem Cause Solution
Nonsystem disk/NTLDR missing message Cause Solution
Solving Hard Drive Problems
Storage Boot Order list
Computer will not boot from hard drive Cause Solution
Computer seems to be locked up Cause Solution
Solving Media Card Reader Problems
Solving Media Card Reader Problems
5Solving Media Card Reader Problems
Can not write to the media card Cause Solution
Enww
Solving Display Problems
Solving Display Problems
6Solving Display Problems
Blank screen no video Cause Solution
Dim characters Cause Solution
Image is not centered Cause Solution
Install the video drivers included in the upgrade kit
Out of Range displays on screen Cause Solution
Select ImageControl/ Horizontal Position or Vertical
Certain typed symbols do not appear correct Cause Solution
Solving Audio Problems
Solving Audio Problems
7Solving Audio Problems
Sound cuts in and out Cause Solution
Unsaved data
Line-in jack is not functioning properly Cause Solution
Solving Printer Problems
Solving Printer Problems
8Solving Printer Problems
9Solving Keyboard Problems
Solving Keyboard and Mouse Problems
10Solving Mouse Problems
Select Shut Down
Solving Keyboard and Mouse Problems
11Solving Hardware Installation Problems
Solving Hardware Installation Problems
Computer will not start Cause Solution
Goes away
Solving Hardware Installation Problems
Once bad card is identified, remove and replace bad
Option card
12Solving Network Problems
Solving Network Problems
Wake-on-LAN feature is not functioning Cause Solution
Network status link light never flashes Cause Solution
Solving Network Problems
Diagnostics reports a failure Cause Solution
New network card will not boot Cause Solution
Drivers for a new expansion board were installed
Network controller requires drivers
Solving Memory Problems
Solving Memory Problems
13Solving Memory Problems
Enww
Solving Processor Problems
Solving Processor Problems
14Solving Processor Problems
Some fans only operate when needed
15Solving CD-ROM and DVD Problems
Solving CD-ROM and DVD Problems
Mode in Security Password Options
Movie will not play in the DVD drive Cause Solution
Solving CD-ROM and DVD Problems
Cannot eject compact disc tray-load unit Cause Solution
16Solving Drive Key Problems
Solving Drive Key Problems
USB Drive Key not found identified Cause Solution
System will not boot from USB Drive Key Cause Solution
Solving Front Panel Component Problems
Solving Front Panel Component Problems
17Solving Front Panel Component Problems
18Solving Internet Access Problems
Solving Internet Access Problems
Unable to connect to the Internet Cause Solution
Click on System and Maintenance
Solving Internet Access Problems
Double-clickAgere Systems PCI-SV92PP Soft
Modem
19Solving Software Problems
Solving Software Problems
Contacting Customer Support
Contacting Customer Support
Post Error Messages
Post Numeric Codes and Text Messages
Post Numeric Codes and Text Messages
Table A-1Numeric Codes and Text Messages
Control panel message Description Recommended action
Memory modules
If the error persists after replacing
Memory modules, replace the system
Board
Clear CMOS. See Appendix B
Flash Screen Image Corrupted Flash Screen image has errors
Verify monitor is attached and turned
Replace the graphics card if possible
Under Storage DPS Self-test
Enww
Activity Beeps Possible Cause Recommended Action
Table A-2Diagnostic Front Panel LEDs and Audible Codes
Is not spinning, make sure the fans cable is
Device that is causing the failure
This procedure until failure occurs. Replace
Replace one device at a time and repeat
Continue adding devices one at a time to
Problem persists, replace the system board
Check that both power supply cables are
Properly connected to the system board
Check to see if the 5Vaux light on
Cmos
Resetting the Password Jumper
Using Computer Setup to Reset Cmos
Clearing and Resetting the Cmos
Figure B-1 Cmos button
Locate, press, and hold the Cmos button in for five seconds
Drive Protection System DPS
Select Storage DPS Self-Test
Accessing DPS Through Computer Setup
Index
Index
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