
2 Troubleshooting Procedures
2.4 System Board Troubleshooting
Table 2-4 Debug port (Boot mode) error status (1/8)
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 (halts when error)
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
Check of Tilde key, Tab key if a key is
pressed
F002h
BIOS rewrite request check
BIOS rewrite request check if
Checksum check error occurred
on except Boot Block or rewrite is
required by user. “BIOS rewrite
process”.
Transits to System BIOS IRT.
Initialization of ICHM. D31
DRAM configuration
Permission of cache (L1 cache only)
Memory clear
F003h
BIOS rewrite
Transition to real mode and copy of BIOS
to RAM
QOSMIO G10 Maintenance Manual (960-497)
2-21
Summary of Contents for Qosmio G10 Series
Page 10: ...x QOSMIO G10 Maintenance Manual 960 497 ...
Page 11: ...Chapter 1 Hardware Overview QOSMIO G10 Maintenance Manual 960 497 1 i ...
Page 12: ...1 Hardware Overview 1 ii QOSMIO G10 Maintenance Manual 960 497 ...
Page 48: ...Chapter 2 Troubleshooting Procedures QOSMIO G10 Maintenance Manual 960 497 2 i ...
Page 49: ...2 2 ii QOSMIO G10 Maintenance Manual 960 497 ...
Page 53: ...2 vi QOSMIO G10 Maintenance Manual 960 497 ...
Page 116: ...Chapter 3 Tests and Diagnostics QOSMIO G10 Maintenance Manual 960 497 3 i ...
Page 117: ...3 ii QOSMIO G10 Maintenance Manual 960 497 ...
Page 121: ...3 vi QOSMIO G10 Maintenance Manual 960 497 ...
Page 224: ...Chapter 4 Replacement Procedures QOSMIO G10 Maintenance Manual 960 497 4 i ...
Page 225: ...4 Replacement Procedures 4 4 ii QOSMIO G10 Maintenance Manual 960 497 ...
Page 312: ...Appendices QOSMIO G10 Maintenance Manual 960 497 App i ...
Page 313: ...App ii QOSMIO G10 Maintenance Manual 960 497 ...
Page 326: ...Appendix A Handling the LCD Module A 6 QOSMIO G10 Maintenance Manual 960 497 ...
Page 388: ...Appendix G BIOS Rewrite Procedures G 2 QOSMIO G10 Maintenance Manual 960 497 ...
Page 392: ...Appendix I Reliability I 2 QOSMIO G10 Maintenance Manual 960 497 ...