3-1
Power-On Self-Test (POST)
3
This chapter describes the Power-On Self-Test (POST) for Normal, Full, and
Abbreviated modes, available with your SPARCstation 5 system.
The Power-On Self-Test (POST) diagnostics reside in the OpenBoot PROM
located on the system board. There are two POST modes: Normal and
Diagnostic.
3.1 Power-On Self-Test (POST)
The Power-On Self-Test (POST) runs when you turn on the system unit power
switch and any of the following conditions apply:
•
diag-switch?
NVRAM parameter is set to
true
.
•
Stop-d keys are held down when you turn on the power.
•
Keyboard is disconnected, and
diag-switch?
is set to
false
.
Power-On Self-Test (POST)
page 3-1
Normal Mode
page 3-5
Full Diagnostic Mode
page 3-5
Abbreviated Diagnostic Mode
page 3-6
Tests the POST Runs
page 3-7
POST Error Messages
page 3-9
Status Lights (LEDs) and Indicators
page 3-9
Summary of Contents for SPARCstation 5
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