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3-6
SPARCserver 1000 System Service Manual—June 1996
3
Figure 3-5
Branch B: Power-on Self-test (POST) Functions
Attach an ASCII terminal to observe
POST in verbose mode.
B
B.1
C
No
Yes
The DC voltages check out. Attempt to power cycle the system and
observe the LED patterns.
Contact Customer Support
Center for further assistance.
Continue to follow the LED patterns
until the self-tests are complete.
After POST ends, 8 yellow LEDs on
the system master should continue
cycling. Yellow LEDs on other
system boards should stay on, until
OBP ends and the operating system
begins running.If you have a
terminal, a message will be
displayed.
Power-on Self-tests (POST)
Did self-tests
pass?
Yes
No
The self-test cycle may take several minutes to complete if the key
switch is in the On (1) position (or the Secure position). Observe
the system board LEDs.
Cycling
Are the LEDs
cycling or frozen?
Is there LED
activity.
Pattern
A set of 8 yellow LEDs turned off indicates a
problem board.
Summary of Contents for SunSwift SPARCserver 1000
Page 4: ...SPARCserver 1000 System Service Manual June 1996 ...
Page 18: ...xviii SPARCserver 1000 System Service Manual June 1996 ...
Page 26: ...xxvi SPARCserver 1000 System Service Manual June 1996 ...
Page 27: ...Part1 SystemInformation ...
Page 28: ......
Page 39: ...Part2 Troubleshooting ...
Page 40: ......
Page 46: ...2 6 SPARCserver 1000 System Service Manual June 1996 2 ...
Page 77: ...Part3 PreparingforService ...
Page 78: ......
Page 89: ...Part4 SubassemblyRemovaland Replacement ...
Page 90: ......
Page 108: ...8 10 SPARCserver 1000 System Service Manual June 1996 8 ...
Page 125: ...Part5 SystemBoard ...
Page 126: ......
Page 153: ...Part6 IllustratedPartsBreakdown ...
Page 154: ......
Page 162: ...12 8 SPARCserver 1000 System Service Manual June 1996 12 ...
Page 163: ...Part7 Appendixes Glossary Index ...
Page 164: ......
Page 216: ... 6 SPARCserver 1000 System Service Manual June 1996 ...