IBM 6643 User Guide - Page 65
Troubleshooting, IBM Enhanced Diagnostics program - power supply
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Chapter 6. Troubleshooting This chapter describes diagnostic tools that you can use to identify and correct problems that might come up as you use your computer. This chapter also contains information about option diskettes and how to recover from a BIOS update failure. Note If your computer does not start when you press the power button, do the following: • Make sure your computer is connected to a working electrical outlet. • Make sure all cables are securely connected to the correct connectors. If this does not correct the problem, have the computer serviced. Computer problems can be caused by hardware, software, or user error (for example, erasing the wrong file). You can use the diagnostic aids discussed in this chapter to help you solve such problems yourself or gather helpful information you can pass on to a service technician. You can check the hardware by following the procedures in this chapter. You can also use the diagnostic programs provided with your computer (see "IBM Enhanced Diagnostics" on page 69 for a description of these programs). If you do not identify a hardware problem and have not made a user error, you might have a software problem. If you suspect that you have a software problem and your computer comes with IBM-preinstalled software, see "IBM Enhanced Diagnostics" on page 69 for information about how to run the IBM Enhanced Diagnostics program provided by IBM. Also see the operating system documentation supplied with your computer. If you have installed software applications yourself, see the documentation supplied with the software. The following tools are available to diagnose hardware-related problems: • Power-on self-test (POST) • Troubleshooting procedure • Error codes and messages • Troubleshooting charts • IBM Enhanced Diagnostics program © Copyright IBM Corp. 2000 51