System cannot autosense the network. If the disc still does not start, read the other solutions listed for this topic. CD or DVD disc is dirty. We were unable to retrieve the list of drivers for your product. Solving General Problems You may be able to easily resolve the general problems described in this section. Fan failure alarm on the removable hard drive enclosure has been activated.

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Replace with a bootable diskette.

Power LED flashes Red three times, once every second, followed by a two second pause. Check that the computer comppaq monitor are plugged into a working electrical outlet.

Verify that the modem is connected and communicating properly. Reset receiver and mouse.

HP Compaq dx7400 Microtower PC (GY512PA)

Diskette xx7400 not bootable. If NTFS formatting, use a third party reader to evaluate the drive. On the Startup tab of the System Configuration Utility, uncheck applications that you do not want to launch automatically. On the Audio tab, select a device from the Sound Playback list. Click on System and Maintenance. It is normal for some monitors to make a clicking noise when xound on and off, when going in and out of standby mode, and when changing resolutions.


If the printer works, reload the printer driver. Change the settings to a supported setting then restart the computer so that the new settings soubd effect. If you encounter problems with the computer, refer to the tables in this chapter for probable causes and recommended solutions.

There may be a problem with the network plug or cable. You comoaq also use Computer Setup to reconfigure or disable devices to resolve the resource conflict.

Check the drive letter in the path statement. Press and hold the power button for less than 4 seconds. Check that the memory modules have been installed correctly and that proper modules are used.

Network controller stops working without apparent cause. Install the video drivers included in the upgrade kit.

HP Compaq dx Microtower PC – Driver Downloads | HP® Customer Support

The font you are using does not support that particular symbol. When attempting to resume from standby mode, do not hold down the power button for more than four seconds. If the hard drive LED turns green, then: Monitor is not capable of displaying requested resolution.


New network card may be defective or may not meet industry-standard specifications. A problem has occurred with a disk dx7400. Remove roller ball cover from the bottom of the mouse and clean the internal components with a mouse cleaning kit available from most computer stores. Program in use has stopped responding to commands. Power LED rx7400 Red eleven times, once every second, followed by a two second pause.

Run Computer Setup and enable network controller. Movie will not play in the DVD drive. Use DVD software to remove parental lock.

Click the Power Management tab, then select the check box to Allow this device to wake the computer. Shut down the computer using the keyboard. Replace module with the correct sund device for the computer.