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3-1
CHAPTER
3
Power-On Self-Test
This chapter describes how to initiate power-on self-test (POST) diagnostics. The
examples given in this chapter are representative, details of actual test results may
be different, depending on system configurations.
This chapter contains the following topics:
■ POST Overview—page 3-2
■ Pre-POST Preparation—page 3-2
■ Initializing POST—page 3-5
■ Maximum and Minimum Levels of POST—page 3-6
■ POST Progress and Error Reporting—page 3-18
■ Bypassing POST—page 3-21
■ Additional Keyboard Control Commands—page 3-22
■ System and Keyboard LEDs—page 3-22
■ Initializing Motherboard POST—page 3-23