2 Troubleshooting Procedures | 2.4 System Board Troubleshooting |
Table 2-4 Debug port (Boot mode) error status (2/9)
D port status | Inspection items | Details | |
|
|
|
|
F004h/F005h | Saving key scan code |
|
|
| Setting TASK_1ms_TSC |
|
|
| Controlling fan |
|
|
| Initializing sound items (for | Enabling system speaker | |
| BEEP) |
|
|
| Releasing mute |
| |
|
|
| |
|
| Making the volume max. (for models whose | |
|
| volume can be controlled) | |
| When BIOS, EC/KBC rewriting | Blinks green (cycle:2s, | on:1s, off:1s) |
| is requested |
|
|
|
|
|
|
| When BIOS ROM is abnormal | Blinks orange (cycle:2s, | on:1s, off:1s) |
| Key input | Prohibition of USB |
|
|
| BEEP |
|
|
| Waiting for key input |
|
| Reading CHGBIOSA.EXE / | FDC reset |
|
| CHGFIRMA.EXE |
|
|
| Setting parameters for 2HD(1.44MB) | ||
|
| ||
|
|
| |
|
| Reading of first sector, If it is the data of | |
|
| 1.44MB (2HD), the media type is definite. | |
|
| Setting of parameters for 2DD (720KB) | |
|
| Retrieval of “CHGBIOSA.EXE” from the root | |
|
| directory. |
|
|
| Calculation of directory start head and | |
|
| sector |
|
|
| Read 1 sector of the root directory | |
|
| Retrieval of entry of “CHGBIOSA.EXE” | |
|
| /“CHGFIRMA.EXE” from the sector read. | |
|
| Reading of EXE header of “CHGBIOSA.EXE” | |
|
| and “CHGFIRMA.EXE” |
|
|
| Key input when error occurred. | |
|
| Execution of “CHGBIOSA.EXE” and | |
|
| “CHGFIRMA.EXE” |
|
F100h | Prohibition of cache |
|
|
| Permission of L1/L2 cache of |
|
|
| FlashROM area |
|
|
QOSMIO F10 Maintenance Manual |
