3-1
C H A P T E R
3
Power-On Self-Test
his chapter contains procedures to initiate the Power-on self-test (POST) diagnostics.
Procedures are also included to support pre-POST preparation, POST data
interpretation, and bypassing POST diagnostics. The following is a list of the POST
diagnostic topics presented in this chapter.
■
“POST Overview” on page 1
■
“Pre-POST Preparation” on page 2
■
“Initilizing POST” on page 4
■
“Max and Min Levels of POST” on page 5
■
“POST Progress and Error Reporting” on page 10
■
“Bypassing POST” on page 11
■
“Additional Keyboard Control Commands” on page 12
■
“System and Keyboard LEDs” on page 12
■
“System Board Test” on page 13
3.1
POST Overview
POST is useful in determining if a portion of the system has failed and should be
replaced. POST detects approximately 85 percent of Ultra 1Creator series system
faults and is located in the system board OpenBoot
™
PROM (OBP). The setting of the
Summary of Contents for Ultra 1 Series
Page 8: ...viii Ultra 1 Creator Series Service Manual August 1996...
Page 21: ...Preface xxi Email smcc docs sun com Fax SMCC Document Feedback 1 415 786 6443...
Page 22: ...xxii Ultra 1 Creator Series Service Manual August 1996...
Page 34: ...2 4 Ultra 1 Creator Series Service Manual August 1996...
Page 70: ...6 4 Ultra 1 Creator Series Service Manual August 1996...
Page 110: ...8 36 Ultra 1 Creator Series Service Manual August 1996...
Page 126: ...9 16 Ultra 1 Creator Series Service Manual August 1996...
Page 158: ...10 32 Ultra 1 Creator Series Service Manual August 1996...
Page 164: ...A 4 Ultra 1 Creator Series Service Manual August 1996...
Page 186: ...B 22 Ultra 1 Creator Series Service Manual August 1996...
Page 208: ...C 22 Ultra 1 Creator Series Service Manual August 1996...
Page 212: ...Glossary 4 Ultra 1 Creator Series Service Manual August 1996...