HP Dx2450 Troubleshooting Guide
HP Dx2450 - Compaq Business Desktop Manual
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UPC - 883585847297
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- HP Dx2450 | Troubleshooting Guide - Page 1
Troubleshooting Guide - dx2390, dx2400, and dx2450 Microtower Models HP Compaq Business PCs - HP Dx2450 | Troubleshooting Guide - Page 2
part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Hewlett-Packard Company. Troubleshooting Guide HP Compaq Business PCs dx2390, dx2400, and dx2450 Microtower Models Second Edition (April 2008) Document Part Number: 464057-002 - HP Dx2450 | Troubleshooting Guide - Page 3
About This Book WARNING! Text set off in this manner indicates that failure to follow directions could result in bodily harm or loss of life. CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of information. NOTE: Text set - HP Dx2450 | Troubleshooting Guide - Page 4
iv About This Book ENWW - HP Dx2450 | Troubleshooting Guide - Page 5
Software ...5 HP Backup and Recovery Manager ...6 2 Troubleshooting Safety and Comfort ...7 Before You Call for Technical Support 7 Helpful Hints ...8 Solving General Problems ...10 Solving Hardware Installation Problems 13 Interpreting POST Audible Codes ...14 Contacting Customer Support ...15 - HP Dx2450 | Troubleshooting Guide - Page 6
vi ENWW - HP Dx2450 | Troubleshooting Guide - Page 7
click Next. 3. Follow the instructions in the wizard to create a Recovery Disc Set. 4. Use Windows Explorer to search the Recovery Disc Set for the CD with the compaq\hpdiags directory. 5. While the computer is on, insert the CD into an optical drive on the computer. ENWW HP Insight Diagnostics 1 - HP Dx2450 | Troubleshooting Guide - Page 8
Memory-Shows information about all memory in the computer. This includes memory slots on the system board and any memory modules installed. Miscellaneous-Shows HP Insight Diagnostics version information, computer configuration memory (CMOS) information, system board data, and system management BIOS - HP Dx2450 | Troubleshooting Guide - Page 9
in progress, a Cancel Testing button is displayed for use if you want to cancel the test. After testing has completed, the Cancel Testing button is replaced with a Retest button. The Retest button will retest the last set of tests executed. This enables you to re-run the set of tests without - HP Dx2450 | Troubleshooting Guide - Page 10
and Printing Information in HP Insight Diagnostics You can save the information displayed in the HP Insight Diagnostics Survey and Log tabs to a diskette or a USB 2.0 HP Drive Key (64MB or higher). You can not save to the hard drive. The system will 4 Chapter 1 Computer Diagnostic Features ENWW - HP Dx2450 | Troubleshooting Guide - Page 11
number (for example, dx2400) in the text box and press the Enter key. 4. Select your specific computer model. 5. Select your OS. 6. Click the Diagnostic link. 7. Click HP Insight Diagnostics Offline Edition. 8. Select a language and click Download. NOTE: The download includes instructions on how to - HP Dx2450 | Troubleshooting Guide - Page 12
back up and recover the primary hard drive on the PC. The application works within Windows to create backups of Windows, all applications, and all data files. Backups can be scheduled to occur automatically at designated intervals, or they can be initiated manually. Important files can be archived - HP Dx2450 | Troubleshooting Guide - Page 13
isolate the exact problem before calling for technical support. ● Run the HP diagnostic tool. ● Run the hard drive self-test in Computer Setup. Refer to the Computer Setup (F10) Utility Guide for more information. ● Listen for a series of beeps from the computer. The beeps are error codes that will - HP Dx2450 | Troubleshooting Guide - Page 14
number before calling. ● Spend time troubleshooting the problem with the service technician. ● Remove any hardware that was recently added to your system. ● Remove any software that was recently installed. NOTE: For sales information and warranty upgrades (Care Packs), call your local authorized - HP Dx2450 | Troubleshooting Guide - Page 15
, the other monitor connectors are disabled and if the monitor is connected into these ports, the monitor will not function. You can select which source will be the default VGA source in Computer Setup. CAUTION: When the computer is plugged into an AC power source, there is always voltage applied - HP Dx2450 | Troubleshooting Guide - Page 16
switch on rear of computer chassis (some Select the proper AC voltage using the selector switch. models) not switched to correct line voltage (115V or 230V). A defective PCI card has been installed. Remove any expansion board that was just installed. Drive data or power supply cables may not be - HP Dx2450 | Troubleshooting Guide - Page 17
life of the RTC battery. First, reset the date and time under Control Panel (Computer Setup can also be used to update the RTC date and time). If the problem persists, replace the RTC battery. See the Hardware Reference Guide for instructions on installing a new battery, or contact an authorized - HP Dx2450 | Troubleshooting Guide - Page 18
on how to improve performance by adjusting parameters in the application. 2. Add more memory. Cause unknown. 3. Upgrade the graphics solution. Restart the computer. Blank screen (no video). Cause Solution Monitor is not turned on and the monitor light is not on. The cable connections are not - HP Dx2450 | Troubleshooting Guide - Page 19
the correct memory modules and to verify the proper installation. 2. Listen for beeps from the computer. See Interpreting POST Audible Codes on page 14 to determine possible causes. 3. If you still cannot resolve the issue, contact Customer Support. ENWW Solving Hardware Installation Problems 13 - HP Dx2450 | Troubleshooting Guide - Page 20
, replace the system board. 3 short beeps and 1 long beep followed by a three second pause CPU configuration error or invalid CPU 1. detected before graphics card initialized. 2. Upgrade the BIOS to proper version. Change the processor. 1 short beep followed by a one No legacy floppy drive or - HP Dx2450 | Troubleshooting Guide - Page 21
http://www.hp.com. NOTE: If you take the computer to an authorized reseller, dealer, or service provider for service, remember to provide the setup and power-on passwords if they are set. Refer to the number listed in the warranty or in the Support Telephone Numbers guide for technical assistance
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Troubleshooting Guide - dx2390, dx2400, and
dx2450 Microtower Models
HP Compaq Business PCs