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2 Troubleshooting Procedures 2.4 System Board Troubleshooting
2-26 [CONFIDENTIAL] PORTEGE R500 Maintenance Manual (960-634)
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 Exception check in the protected
mode
INIT_SYS_MEM
Dport=F117h when error occurs
Initialization of conventional memory (Reboot)
F118H
CHK_DMA_PAGE (Check of DMA Page Register) (Boot)
F119H
CHECK_DMAC (Initialization of DMAC) (Boot)
F11AH INIT_DMAC
(Initialization of DMA) (Boot)
F11CH CHECK_SIO (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
F11DH BOOT_PASSWORD
BM opening (for models supporting fingerprint
authentication)