2 Troubleshooting Procedures
2.4 System Board Troubleshooting
2-22
[CONFIDENTIAL]
QOSMIO F20 Maintenance Manual (960-526)
Table 2-4 Debug port (Boot mode) error status (3/9)
D port status
Inspection items
Details
Prohibition of cache
Initialization of MCHM
Initialization of ICH6M.D31.Func0
Initialization of ICH6M.D31.Func1
Initialization of USB.Func0,1,2,7
Initialization of ICH6M.D31.Func3
Initialization of ICH6M.D31.Func5
Initialization of H/W (before DRAM
recognition)
Initialization of Flute
F100h
Initialization of PIT channel 1
(Setting the refresh interval to “30
?
s”)
Checking DRAM type and size
(at cold boot)
When unsupported memory connected,
beeps and halts.
When DRAM size = 0, halts.
F101h
Testing the stack area of SM-RAM
When it can not be used, halts.
Configuring cache memory
Permission of L1/L2 cache
memory
Checking the access of a CMOS
(Only in Cold Boot)
When error detected, halts
Examining the battery level of
CMOS
Checksum check of CMOS
Initializing data in CMOS (1)
Setting up IRT status
(Setting of boot status and IRT busy flag,
The rest bits are 0)
F102h
Storing the size of DRAM
F103h
Branch of resuming (only in Cold
Boot)
When a CMOS error is detected, it does
not resume.
If “resume status code” is not set, no
resume occurs.
Summary of Contents for QOSMIO F20 Series
Page 10: ...x CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Page 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Page 47: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
Page 48: ...2 Troubleshooting Procedures 2 ii CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 2 ...
Page 52: ...2 Troubleshooting Procedures 2 vi CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Page 111: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Page 112: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Page 117: ...3 Tests and Diagnostics QOSMIO F20 Maintenance Manual 960 526 CONFIDENTIAL 3 vii ...
Page 227: ...3 31 SETUP 3 Tests and Diagnostics QOSMIO F20 Maintenance Manual 960 526 CONFIDENTIAL 3 105 ...
Page 228: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
Page 229: ...4 Replacement Procedures 4 ii CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 4 ...
Page 316: ... CONFIDENTIAL Appendices ...
Page 317: ...Appendices App ii CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Page 322: ...Appendices QOSMIO F20 Maintenance Manual 960 526 CONFIDENTIAL App vii Table I 1 MTBF I 1 ...
Page 323: ...Appendices App viii CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Page 337: ...Appendices Appendix B Board Layout B 8 CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Page 373: ...Appendices Appendix C Pin Assignments C 36 CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Page 383: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Page 385: ...Appendices Appendix F Wiring diagrams F 2 CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Page 391: ...Appendices Appendix I Reliability I 2 CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...