2.4 System board Troubleshooting
2 Troubleshooting
PORTEGE M400 Maintenance Manual (960-541)
[CONFIDENTIAL]
2-21
Table 2-3 Debug port (Boot mode) error status (1/10)
D port status
Inspection items
Details
Permission of A20 and Clear of
software reset bit
Prohibition of APIC
Initialization of MCHM, ICHM
Initialization of Super I/O
Initialization of debug port
Dummy read of 3
rd
Bus data
PIT CH0 initialization
(for HOLD_ON)
BIOS rewrite factor flag
initialization
Transition to protected mode
Boot block checksum (skipped when
returned to S3)
Halts when error occurs
F000h
CHECK SUM CHECK
Checksum other than boot block (skip
when returned to S3)
F001h
EC/KBC rewrite check
If “rewrite” is requested, go to “BIOS rewrite
process”
Transition of process to system
BIOS IRT when returned to S3
Key input
When a key is pressed, check if it is Tilde
key or Tab key
F002h
Initialization of SC
Halts when error occurs D port=F003h or
04h
F006h
BIOS rewrite request check
If Checksum check error occurred on other
than Boot Block or rewrite is required by
user, go to “BIOS rewrite process”
Transits to system BIOS IRT
Initialization of ICHM. D31
DRAM configuration
Permission of cache (L1 cache only)
Memory clear
F007h
BIOS rewrite process
Transits to real mode and copies BIOS to
RAM
Содержание M400 - Portege - Core 2 Duo 1.83 GHz
Страница 10: ...x CONFIDENTIAL PORTEGE M400 Maintenance Manual 960 541 ...
Страница 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Страница 12: ...1 Hardware Overview 1 ii CONFIDENTIAL PORTEGE M400 Maintenance Manual 960 541 1 Hardware Overview ...
Страница 43: ... CONFIDENTIAL Chapter 2 Troubleshooting ...
Страница 44: ...2 Troubleshooting 2 ii CONFIDENTIAL PORTEGE M400 Maintenance Manual 960 541 2 ...
Страница 48: ...2 Troubleshooting 2 vi CONFIDENTIAL PORTEGE M400 Maintenance Manual 960 541 ...
Страница 112: ...2 Troubleshooting 2 18 Fingerprint sensor Troubleshooting 2 64 CONFIDENTIAL PORTEGE M400 Maintenance Manual 960 541 ...
Страница 113: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Страница 114: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL PORTEGE M400 Maintenance Manual 960 541 ...
Страница 217: ...3 31 SETUP 3 Tests and Diagnostics PORTEGE M400 Maintenance Manual 960 541 CONFIDENTIAL 3 99 ...
Страница 232: ...3 Tests and Diagnostics 3 31 SETUP 3 114 CONFIDENTIAL PORTEGE M400 Maintenance Manual 960 541 ...
Страница 233: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
Страница 234: ...4 Replacement Procedures 4 ii CONFIDENTIAL PORTEGE M400 Maintenance Manual 960 541 4 ...
Страница 310: ...4 Replacement Procedures 4 26 Digitizer 4 72 CONFIDENTIAL PORTEGE M400 Maintenance Manual 960 541 ...
Страница 332: ...4 Replacement Procedure 4 31 Fluorescent lamp 4 94 CONFIDENTIAL PORTEGE M400 Maintenance Manual 960 541 ...
Страница 333: ... CONFIDENTIAL Appendices ...
Страница 334: ...Appendices App ii CONFIDENTIAL PORTEGE M400 Maintenance Manual 960 541 ...
Страница 346: ...Appendices Appendix A Handling the LCD Module A 6 CONFIDENTIAL PORTEGE M400 Maintenance Manual 960 541 ...
Страница 354: ...Appendices Appendix B Board Layout B 8 CONFIDENTIAL PORTEGE M400 Maintenance Manual 960 541 ...
Страница 388: ...Appendices Appendix D Keyboard Scan Character Codes D 8 CONFIDENTIAL PORTEGE M400 Maintenance Manual 960 541 ...
Страница 392: ...Appendices Appendix F Wiring Diagrams F 2 CONFIDENTIAL PORTEGE M400 Maintenance Manual 960 541 ...
Страница 394: ...Appendices Appendix G BIOS Rewrite Procedures G 2 CONFIDENTIAL PORTEGE M400 Maintenance Manual 960 541 ...
Страница 396: ...Appendices Appendix H EC KBC Rewrite Procedures H 2 CONFIDENTIAL PORTEGE M400 Maintenance Manual 960 541 ...
Страница 398: ...Appendices Appendix I Reliability I 2 CONFIDENTIAL PORTEGE M400 Maintenance Manual 960 541 ...