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2 Troubleshooting Procedures
2.4 System Board Troubleshooting
2-26
Satellite A40 Maintenance Manual (960-458)
Table 2-5 Printer port LED status (4/8)
LED Status
Test item
Contents
(03h)
Forwards the area of C0000h to EFFFFh to PCI
(prohibition of DRAM)
Sets resume error request
Copying ROM/RAM of system BIOS (HLT when
error occurred)
04h
SMRAM initialization
SMRAM initialization
CPU supporting Hyper Threading check
Microcode update
WakeUp factor check
Initialization of APIC
SMRAM base rewriting and CPU state map saving
for BIOS
Permission of SMI based on ASMI
05h
Initialization of devices
PIT test (at Cold boot only) and initialization
which need initialization
Setting of test pattern to channel 0 of PIT#0
before PCI bus initialization
Check whether the set test pattern can be read
Initialization of PIT channel 0 (Setting of timer
interruption interval to 55ms)
Initialization of PIT channel 2(Setting of the
sound generator frequency to 664Hz)
Test of PIT channel 1 (Check whether the refresh
signal works normally in 30 micro-s refresh interval.)
The system halts when the time is out.
Test of PIT channel 2 (Check whether the
speaker gate works normally.)
CPU clock measurement
Permission of SMI except auto-off function
Battery discharge current control (1CmA)
AC adapter rated over current control
Dividing procedures for time measuring by IRT
Setting for clock generator
Check of parameter block A
CPU Initialization
Microcode update
Geyserville support check
Setting of CPU clock to “high"
Graphics Aperture Size setting
Summary of Contents for Satellite A40
Page 11: ...Satellite A40 Maintenance Manual 960 458 xi ...
Page 12: ...Chapter 1 Hardware Overview ...
Page 13: ...1 Hardware Overview 1 ii Satellite A40 Maintenance Manual 960 458 ...
Page 16: ...1 Hardware Overview Satellite A40 Maintenance Manual 960 458 1 v ...
Page 54: ...Chapter 2 Troubleshooting Procedures ...
Page 55: ...2 Troubleshooting Procedures 2 ii Satellite A40 Maintenance Manual 960 458 ...
Page 59: ...2 Troubleshooting Procedures 2 vi Satellite A40 Maintenance Manual 960 458 ...
Page 121: ...Chapter 3 Tests and Diagnostics ...
Page 122: ...3 Tests and Diagnostics 3 ii Satellite A40 Maintenance Manual 960 458 ...
Page 213: ...Chapter 4 Replacement Procedures ...
Page 214: ...4 Replacement Procedures 4 ii Satellite A40 Maintenance Manual 960 458 ...
Page 384: ...Appendices ...
Page 385: ...Appendices App ii Satellite A40 Maintenance Manual 960 458 ...
Page 388: ...Appendices Satellite A40 Maintenance Manual 960 458 App v Appendix I Reliability I 1 ...
Page 392: ...Appendices Satellite A40 Maintenance Manual 960 458 App ix ...
Page 398: ...Appendices Appendix A Handling the LCD Module A 6 Satellite A40 Maintenance Manual 960 458 ...
Page 438: ...Appendices Appendix E Key Layout E 4 Satellite A40 Maintenance Manual 960 458 ...
Page 440: ...Appendices Appendix F Wiring Diagrams F 2 Satellite A40 Maintenance Manual 960 458 ...
Page 442: ...Appendices Appendix G BIOS Rewrite Procedures G 2 Satellite A40 Maintenance Manual 960 458 ...
Page 444: ...Appendices Appendix H EC KBC Rewrite Procedures H 2 Satellite A40 Maintenance Manual 960 458 ...
Page 446: ...Appendices Appendix I Reliability I 2 Satellite A40 Maintenance Manual 960 458 ...