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Click OK. Regulatory Information These are Class B digital devices, pursuant to Part 15 of the FCC Rules. Refer to the Safety & Regulatory Information guide on the Documentation Library CD for Class B information. Getting Help Additional help and other information can be obtained through Technical Support information at or in the warranty information included with your computer. 1.6 Getting Started Basic Troubleshooting Overview This chapter is intended for basic troubleshooting only. A comprehensive Troubleshooting Guide is available on the Documentation Library CD and at You may elect to purchase the Quick Troubleshooting Guide (part number 120205-002) that contains easy to follow flow charts that can lead you through the debug process. This guide was written for authorized service providers and contains steps that may be beyond the technical capabilities of some users. Improperly performing some processes identified in the guide may damage the computer and/or void your warranty. If you are unsure of your ability to perform the task, or if you are concerned about voiding your product warranty, contact you local authorized sales or service representative before undertaking the recommended corrective action. If electing to use an OS different than what was shipped with your system, refer to for additional support that may be available. See “Restoring Your Software” in Chapter 1 for information regarding software problems. Helpful Hints If you encounter some minor problem with your computer, monitor, or software, refer to the following list of general suggestions before taking further action: ¦ Check that the computer and monitor are plugged into a working electrical outlet. Getting Started 2.1 Basic Troubleshooting ¦ Check to see that the computer is turned on and the green power light is on. ¦ Check to see that the monitor is turned on and the green monitor light is on. ¦ Turn up the brightness and contrast controls of the monitor if the monitor is dim. ¦ Press and hold any key. If the system beeps, then your keyboard is operating correctly. ¦ Check all cable connections for loose connections or incorrect connections. ¦ Reconfigure your computer after installing a non–plug and play expansion board or other option. See “Solving Hardware Installation Problems” for instructions. ¦ Be sure that all the needed device drivers have been installed. For example, if you have connected a printer, you need to install a printer driver. ¦ Remove all diskettes from your system before turning it on. ¦ If you have installed an operating system other than the factory-installed operating system, check to be sure that it is supported on your system. ¦ If your system has multiple video sources (embedded, PCI, or AGP adapters) installed (embedded video on select models only) and a single monitor, the monitor must be plugged into the monitor connector on the source selected as the primary VGA adapter. During boot, 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 (F10) Setup. A A CAUTION: When the computer is plugged into an AC power source, there is always voltage applied to the system board. You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage. 2.2 Getting Started Basic Troubleshooting Solving General Problems You may be able to easily resolve the minor problems described in this section. If a problem persists and you are unable to resolve it yourself or if you feel uncomfortable about performing the operation, contact an authorized dealer or reseller. Solving General Problems Problem Cause Solution Computer will not turn on. Computer is not connected to an external Connect to an external power source. power source. Cables to the external power source are unplugged. Ensure that cables connecting the computer to the external power source are plugged in properly and the wall outlet is active. A defective PCI card has been installed. Remove any expansion board that was just installed. Drive power, data, or power supply cables may not be properly connected. Reseat drive power, data, and power supply cables. The unit temperature was exceeded. The fan may be blocked. 1. Unit is in an exceedingly hot environment. Let it cool down. 2. Ensure that computer air vents are not blocked and internal fan is running. Contact an authorized reseller or service provider. Power line selector switch Select the proper AC voltage using on rear of computer the slide switch. chassis is not switched to correct line voltage (115V or 230V) (some models). Getting Started 2.3 Basic Troubleshooting Solving General Problems (Continued) Problem Cause Solution Computer appears Software control of the Press and hold the power button for at ...
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