2 Troubleshooting Procedures 2.4 System Board Troubleshooting
4. Boot the computer in MS-DOS mode.
5. Execute GETDPORT.COM in the text menu in CPU REAL mode. (Insert the FD for
starting D port into FDD and input “FD starting drive:>dport”.)
The D port status is displayed in the following form;
6. When the D port status is FFFFh (normal status), go to Procedure 4.
7. When the D port status falls into any status in Table 2-4, execute Check 1.
2-22 [CONFIDENTIAL] Satellite Pro S300, TECRA A10/S10/P10 Maintenance Manual (960-684)