Toshiba Portege R500 Maintenance Manual page 68

2 Troubleshooting Procedures
Table 2-5 Debug port (Boot mode) error status (4/10)
D port status
(F103)
Transition to RESUME-MAIN
Resume error process
Copying ROM/RAM of system BIOS
F104H BIOS signature check (case of cold
boot)
F105H
SMRAM initialization
Check of CPU for HyperThreading
Microcode Update
APIC initialization
WakeUp factor check
SMRAM base rewriting and CPU
state map saving for BIOS
Permission of SMI based on ASMI
2-22
Inspection items
[CONFIDENTIAL]
2.4 System Board Troubleshooting
Details
Check of memory configuration change
Resume error F174H RSM_SYSMEM_ERR
RAM area checksum check in system BIOS
Resume error F179H SM_RAMBIOS_ERR
Expansion memory checksum check
Resume error F176H RSM_EXTMEM_ERR
PnP RAM checksum check
Resume error F177H RSM_PNPRAM_ERR
Reset of CPU clock to low
Prohibition of all SMI
Clearance of resume status
Return to ROM
Turning area of C0000h to EFFFFh to PCI
(Prohibition of DRAM)
Setting of resume error request
(HLT, when error occurs)
PORTEGE R500 Maintenance Manual (960-634)