2.4 System Board Troubleshooting
2 Troubleshooting Procedures
PORTEGE R500 Maintenance Manual (960-634) [CONFIDENTIAL]
2-19
Table 2-5 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 MCH and ICH
Initialization of Super I/O
Initialization of debug port
Boot block
Dummy read of 3rd Bus data
Only PIT CH0 initialization
(for HOLD_ON)
BIOS rewrite factor flag initialization
Transition to protected mode
Boot block checksum (skip when returned to S3)
(halts when error)
F000H
CHECK SUM CHECK
Checksum other than boot block (skip when
returned to S3)
EC/KBC rewrite check
If “rewrite” is requested, go to “BIOS rewrite process”
Transition to system BIOS IRT
(
when
returned to S3)
Key input
F001H
When a key is pressed, check if it is
Tilde key or Tab key
F002H
Initialization of SC
F005H
F006H
BIOS rewrite request check
If Checksum check error occurred on except
Boot Block or rewrite is required by user, go to
“BIOS rewrite process”.
F007H
BIOS signature check
Transits to System BIOS IRT
Initialization of ICHM. D31
DRAM configuration
Permission of cache (L1 cache only)
F008H
BIOS rewrite process
Memory clear
F009H
Transition to real mode and copy of BIOS to
RAM
Summary of Contents for R500 S5001X - Portege - Core 2 Duo 1.2 GHz
Page 10: ...x CONFIDENTIAL PORTÉGÉ R400 Maintenance Manual 960 623 ...
Page 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Page 12: ...1 Hardware Overview 1 ii CONFIDENTIAL PORTEGE R500 Maintenance Manual 960 634 ...
Page 40: ...1 Hardware Overview 1 11 AC Adapter 1 26 CONFIDENTIAL PORTEGE R500 Maintenance Manual 960 634 ...
Page 41: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
Page 42: ...2 Troubleshooting Procedures 2 ii CONFIDENTIAL PORTEGE R500 Maintenance Manual 960 634 ...
Page 107: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Page 108: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL PORTEGE R500 Maintenance Manual 960 634 3 ...
Page 112: ...3 Tests and Diagnostics 3 vi CONFIDENTIAL PORTEGE R500 Maintenance Manual 960 634 ...
Page 211: ...Chapter 4 Replacement Procedures CONFIDENTIAL ...
Page 212: ...4 Replacement Procedures 4 ii CONFIDENTIAL PORTÉGÉ R500 Maintenance Manual 960 634 ...
Page 216: ...4 Replacement Procedures 4 vi CONFIDENTIAL PORTÉGÉ R500 Maintenance Manual 960 634 ...
Page 282: ...4 Replacement Procedures 4 25 Hinge 4 66 CONFIDENTIAL PORTÉGÉ R500 Maintenance Manual 960 634 ...
Page 283: ... CONFIDENTIAL Appendices ...
Page 284: ...Appendices App ii CONFIDENTIAL PORTEGE R500 Maintenance Manual 960 634 ...
Page 292: ...Appendices App x CONFIDENTIAL PORTEGE R500 Maintenance Manual 960 634 ...
Page 364: ...Appendices Appendix I Reliability I 2 CONFIDENTIAL PORTEGE R500 Maintenance Manual 960 634 ...