Toshiba Tecra A8 Maintenance Manual - Page 70

2 Troubleshooting Procedures 2.4 System Board Troubleshooting Procedure 1 Message Check When the power is turned on, the system performs the Initial Reliability Test (IRT) installed in the BIOS ROM. The IRT tests each IC on the system board and initializes it. ‰ If an error message is shown on the display, perform Check 1. ‰ If there is no error message, go to Procedure 2. ‰ If Windows XP is properly loaded, go to Procedure 3. Check 1 If one of the following error messages appears on the screen, press F1 as the message instructs. These errors occur when the system configuration preserved in the RTC memory (CMOS type memory) is not the same as the actual configuration or when the data is lost. If you press F1 as the message instructs, returns all system settings to their default values. Then the system reboots. If error message (b) appears often when the power is turned on, replace the RTC battery. If any other error message displays, perform Check 2. (a) *** Bad HDD type *** Check system. Then press [F1] key ...... (b) *** RTC battery is low or CMOS checksum is inconsistent *** Press [F1] key to set Date/Time ...... (c) *** Bad configuration *** Check system. Then press [F1] key ...... (d) *** Bad memory size *** Check system. Then press [F1] key ...... (e) *** Bad time function *** Check system. Then press [F1] key ...... (g) *** Bad check sum (ROM) *** Check system. Then press [F1] key ...... Check 2 If the following error message is displayed on the screen, press any key as the message instructs. The following error message appears when data stored in RAM under the resume function is lost because the battery has become discharged or the system board is damaged. Go to Procedure 3. WARNING: RESUME FAILURE. PRESS ANY KEY TO CONTINUE. If any other error message displays, perform Check 3. 2-22 [CONFIDENTIAL] TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573)