Toshiba Portege M100 Maintenance Manual - Page 67

2.4 System Board Troubleshooting 2 Troubleshooting Procedures Table 2-4 Printer port LED boot mode status (4/5) LED Status 11h 12h 13h 14h 17h 18h 19h 1Ah Test item Display logo System memory check System memory initialization Extension memory check DMA page check DMAC check DMAC initialization DMAC initialization Printer check SIO check 1Bh Boot password FDD initialization HDD initialization 1Ch Extension I/O ROM check Message Display logo Conventional memory check Conventional memory initialization Extension memory check DMA page check DMAC check DMAC initialization (Boot) DMAC initialization (Reboot) Printer check SIO check Wait for SIO initialization process completion Password check Wait for KBC initialization process completion Wait for FDD initialization process completion Wait for HDD initialization process completion IRT key input check ATA priority initialization Password input Wait for KBC / Mouse initialization completion Extension I/O ROM check PORTEGE M100 Maintenance Manual (960-452) 2-25