2 Troubleshooting Procedures
2.4 System Board Troubleshooting
Table 2-4 Debug port (Boot mode) error status (3/8)
D port status
Inspection items
Details
Checking DRAM type and size
(at cold boot)
When unsupported memory connected, beeps
and halts.
(When DRAM size = o, it 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, it 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 bit is 0)
F102h
Storing the size of DRAM
When a CMOS error is detected, no resume
occurs.
If “resume status code” is not set, no resume
occurs.
Branch of resuming
(only in Cold Boot)
Resume error check
S3 recovery error (ICH)
Resume error F17AH
SM-RAM checksum check
Resume error F173H
Memory configuration change check
Resume error F173H
Checksum check of system BIOS RAM area
Resume error F179H
Checksum check of expansion memory
Resume error F176H
Checksum check of PnP RAM
Resume error F177H
To resume process (RESUME_MAIN)
Returns the CPU clock to “Low”
Prohibition of all SMI
Clears resume status
F103h
Resume error process
Return to ROM
QOSMIO G20 Maintenance Manual (960-511) [CONFIDENTIAL]
2-23
Summary of Contents for QOSMIO G20 Series
Page 10: ...x CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 11: ...Chapter 1 Hardware Overview CONFIDENTIAL ...
Page 12: ...1 Hardware Overview 1 ii CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 38: ...1 9 AC Adapter 1 Hardware Overview 1 24 CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 39: ...Chapter 2 Troubleshooting Procedures CONFIDENTIAL ...
Page 40: ...2 2 ii CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 44: ...2 vi CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 113: ...Chapter 3 Tests and Diagnostics CONFIDENTIAL ...
Page 114: ...3 Tests and Diagnostics 3 3 ii CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 223: ...3 Tests and Diagnostics 3 32 SETUP QOSMIO G20 Maintenance Manual 960 511 CONFIDENTIAL 3 105 ...
Page 236: ...3 32 SETUP 3 Tests and Diagnostics 3 118 CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 237: ...Chapter 4 Replacement Procedures CONFIDENTIAL ...
Page 238: ...4 Replacement Procedures 4 4 ii CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 331: ...Appendices CONFIDENTIAL ...
Page 332: ...App ii CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 347: ...Appendix A Handling the LCD Module A 6 CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 354: ...Appendix B Board Layout B 4 SD board QOSMIO G20 Maintenance Manual 960 511 CONFIDENTIAL B 7 ...
Page 412: ...Appendix G BIOS Rewrite Procedures G 2 CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 416: ...Appendix I Reliability I 2 CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...