Toshiba Portege R500 Maintenance Manual - Page 72

2 Troubleshooting Procedures 2.4 System Board Troubleshooting Table 2-5 Debug port (Boot mode) error status (8/10) D port status Inspection items Details F115H EXT_MEM_CHECK (Check of exception in the protected mode)(Boot) F116H F118H Exception check in the protected mode INIT_SYS_MEM CHK_DMA_PAGE Dport=F117h when error occurs Initialization of conventional memory (Reboot) (Check of DMA Page Register) (Boot) F119H CHECK_DMAC (Initialization of DMAC) (Boot) F11AH INIT_DMAC (Initialization of DMA) (Boot) F11CH F11DH CHECK_SIO BOOT_PASSWORD (Check of SIO) (For models supporting SIO) (Check of password) (In the case of "Reboot") Waiting for HDD initialization completion Check of key input during IRT (waiting for KBC initialization completion) Initialization of ATA priority (In the case of "Boot") BM loading process (for models supporting fingerprint authentication) Initialization of BM (for models supporting fingerprint authentication) Check of key input during IRT (waiting for KBC initialization completion) Input of password BM opening (for models supporting fingerprint authentication) 2-26 [CONFIDENTIAL] PORTEGE R500 Maintenance Manual (960-634)