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Manual abstract: user guide HP COMPAQ DESKPRO EC
Detailed instructions for use are in the User's Guide.
[. . . ] Notice
The information in this publication is subject to change without notice. COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL. THIS INFORMATION IS PROVIDED "AS IS" AND COMPAQ COMPUTER CORPORATION DISCLAIMS ANY WARRANTIES, EXPRESS, IMPLIED OR STATUTORY AND EXPRESSLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, GOOD TITLE AND AGAINST INFRINGEMENT. This publication contains information protected by copyright. [. . . ] Verify that the video cable is connected securely to the video card and the monitor. Set the RGB switch (and, if available, the sync options) to 75 ohms, with the sync set to "external. " Refer to documentation included with the monitor. Leave at least 3 inches (7. 6 cm) of ventilation space. Be sure nothing is sitting on top of the monitor obstructing airflow. Install the display drivers included in the upgrade kit on the diskette. Verify that the monitor cable is connected securely to the computer. In a two-monitor system or if another monitor is in close proximity, move the computers farther apart to ensure that they are not interfering with each other's electromagnetic fields.
Monitor overheats
There is insufficient ventilation space for proper airflow.
Blurry display, or the requested resolution cannot be set The picture is broken up or it rolls, jitters, or blinks
If the graphics controller was upgraded, the correct display drivers may not be loaded. The monitor connections are incomplete, or the monitor is adjusted incorrectly.
228
User's Guide
Software Problems
If you are unable to find the information you need here, refer to the "Microsoft Software Problems" section of this chapter.
Most software application or installation problems occur as a result of one or more of the following:
I I I
The application was not installed correctly. There is a conflict between applications.
Software Problems Problem
Application will not run
Possible Cause
There is not enough memory for the application.
Solution
Check the documentation that came with the software for memory requirements. If necessary, install additional memory. Call Compaq Customer Support for help with memory optimization. Using Windows Notepad, add the application directory with the full path name to the PATH settings in the AUTOEXEC. BAT file.
Cannot run DOS application from current directory
The application has not been added to the PATH statement in the AUTOEXEC. BAT file.
User's Guide 229
USB Problems
USB Problems Problem
External device connected to a USB connector does not work
Possible Cause
The operating system limits external devices connected by USB to two tiers, which can include no more than two hubs on the first tier and no more than one keyboard and one pointing device on the first or second tier. During Startup, only two tiers are supported by the USB connector.
Solution
Reduce the number of connected external USB devices to no more than two hubs on the first tier and no more than one keyboard and one pointing device on the first or second tier. Use the external device only after Windows 98 has loaded. Reduce the number of connected external USB devices to no more than two hubs on the first tier and no more than one keyboard and one pointing device on the first or second tier. Verify that all unpowered hubs are immediately preceded by powered hubs in the USB chain.
External device connected to USB connector does not work during startup (before Windows 98 loads)
External devices on lower tiers do not work
An unpowered hub is connected to another unpowered hub.
Note: External USB keyboards will not function until the operating system has been booted.
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User's Guide
chapter
3
Compaq QuickRestore
To protect your software from loss or damage, you should keep a backup copy of all system software, applications, and related files stored on your hard drive. Refer to your operating system or backup utility documentation for instructions on making backup copies of your personal data files. The QuickRestore CD allows you to choose one of the following solutions:
I I
System Restore--Reformats the hard drive and then returns the computer to its original preinstalled software state. Selective Restore--Allows you to select specific Compaq drivers or Compaq applications to reinstall without reformatting the hard drive.
System Restore
System Restore reformats the hard drive and reinstalls the operating system and all Compaq drivers and applications. All third party software is provided with your system and may be reinstalled as desired. CAUTION: System Restore destroys all data on the computer's hard disk. If you have added personal files, software, or data since you purchased the computer, backup or copy this data before proceeding.
Once the System Restore is complete, you will need to provide the startup information again to complete the Windows operating system setup.
User's Guide 31
To perform a System Restore on your computer, complete the following steps: 1. [. . . ] The length of the cord set must be as follows:
I I
Minimum: 6. 50 ft (2. 0 m) Maximum: 9. 75 ft (3. 0 m)
User's Guide
B1
U. S. The cord set must be UL-Listed and CSA-Certified. The minimum specifications for the flexible cord are:
I I I
No. The cord set must have a rated current capacity of at least 10 A. [. . . ]
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