Toshiba Satellite R20 Maintenance Manual page 84

2 Troubleshooting
D port status
F122h Start of BIOS security check
F123h End of BIOS security check
Clear of IRT status, renewal
F124h of check sum of Runtime
side
FFFFh End
Check 1 If the D port is status F11Eh or F120h is displayed, go to HDD Troubleshooting
Procedure in Section 2.6.
Check 2 If any other D port status error code is displayed, perform Procedure 3.
D port error code is as follows:
Error code
F003h or F004h
F00Bh
F117h
F121h
F166h
2-30 [CONFIDENTIAL]
Table 2-4 Debug port (Boot mode) error status (10/10)
Inspection items
Contents
SC initialization error
BIOS update error
Exception check error
Clock generator error
BIOS security error
Satellite R20/TECRA M7 Maintenance Manual (960-572)
2.4 System board Troubleshooting
Details
When error occurred, halts at D port=F166h