Toshiba Portege R500 Maintenance Manual page 72

2 Troubleshooting Procedures
Table 2-5 Debug port (Boot mode) error status (8/10)
D port status
F115H EXT_MEM_CHECK
F116H Exception check in the protected
mode
INIT_SYS_MEM
F118H
CHK_DMA_PAGE
F119H
CHECK_DMAC
F11AH INIT_DMAC
F11CH CHECK_SIO
F11DH BOOT_PASSWORD
2-26
Inspection items
[CONFIDENTIAL]
2.4 System Board Troubleshooting
Details
(Check of exception in the protected mode)(Boot)
Dport=F117h when error occurs
Initialization of conventional memory (Reboot)
(Check of DMA Page Register) (Boot)
(Initialization of DMAC) (Boot)
(Initialization of DMA) (Boot)
(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)
PORTEGE R500 Maintenance Manual (960-634)