Compaq dx2400 Service Reference Guide: HP Compaq dx2400 Business PC - Page 96
Interpreting POST Audible Codes - cpu upgrade
View all Compaq dx2400 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 96 highlights
Interpreting POST Audible Codes This section covers the audible codes that may occur before or during POST that do not necessarily have an error code or text message associated with them. WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching. Beeps Meaning Recommended Action 1 short beep and 1 long beep followed by a three second pause Bad memory or memory configuration error. Check that the memory modules have been installed correctly and that proper modules are used. 2 short beeps and 1 long beep followed by a three second pause No graphics card installed or graphics card initialization failed. For systems with a graphics card: 1. Reseat the graphics card. Power on the system. 2. Replace the graphics card. 3. Replace the system board. For systems with integrated graphics, 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 optical drive second pause found. 1. Check cable connections. 2. Run the Computer Setup utility and ensure the device port is enabled. 2 short beeps followed by a three second pause No floppy diskette or CD found. 1. Check the type of drive that you are using and use the correct media type. 2. Replace the diskette or CD with a new one. 3 short beeps followed by a three second pause Flashing not ready (missing utility or BIOS image file, etc.) Upgrade the BIOS to proper version. 4 short beeps followed by a three second pause Flashing operation has failed (checksum 1. error, corrupted image, etc.) 2. Verify the correct ROM. Flash the ROM if needed. 3. If an expansion board was recently added, remove it to see if the problem remains. 4. Clear CMOS. 5. If the message disappears, there may be a problem with the expansion card. 6. Replace the system board. 5 short beeps followed by a three second pause BIOS recovery was successful No action required. 90 Appendix C Troubleshooting