Sun Microsystems SPARCserver 1000 Service Manual page 6

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2.2 Status Lights and Indicators . . . . . . . . . . . . . . . . . . . . . . . .
3. Diagnostics and Commands for Troubleshooting. . . . . . . . . .
3.1 Diagnosing Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.1 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.2 Console Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Using prtdiag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Using probe scsi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4 Precautions when Using POST . . . . . . . . . . . . . . . . . . . . . .
3.5 Precautions when Using OBP . . . . . . . . . . . . . . . . . . . . . . .
3.5.1 System Boards with PROM Revision 2.11 (or Lower) 3-6
3.5.2 System Boards with PROM Revision 2.13 (or Higher) 3-7
3.6 Connecting a Terminal to the System Master . . . . . . . . . .
3.7 Running OBP and POST . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
3.8 Interpreting System Board LEDs . . . . . . . . . . . . . . . . . . . . 3-17
3.8.1 While POST Is Running . . . . . . . . . . . . . . . . . . . . . . . 3-17
3.8.2 After POST Ends . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
3.9 Disabling and Enabling the Link Integrity Test . . . . . . . . 3-18
3.10 SuperSPARC Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
3.11 SIMMs and NVSIMMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
4. Troubleshooting Flow Diagrams . . . . . . . . . . . . . . . . . . . . . . . .
4.1 Flow Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Part 3 —Preparing for Service
5. Safety and Tools Requirements . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPARCserver 1000 System Service Manual—June 1996
2-3
3-1
3-1
3-1
3-2
3-3
3-4
3-6
3-6
3-8
4-1
4-2
5-1
5-1

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