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4-16 Troubleshooting
Post Codes 0
The following are the InsydeH2O™ Functionality POST code tables. The components of the
POST code table includes: SEC phase, PEI phase, DXE phase, BDS phase, CSM functions,
S3 functions and ACPI functions.
Table 4-2. POST Code Range
Phase POST Code Range
SEC 0x01 - 0x0F
PEI 0x70 - 0x9F
DXE 0x40 - 0x6F
BDS 0x10 - 0x3F
SMM 0xA0 - 0xBF
S3 0xC0 - 0xCF
ASL 0x51 – 0x55
0xE1 – 0xE4
PostBDS 0xF9 – 0xFE
InsydeH2ODDT™ Reserve 0xD0 – 0xD7
OEM Reserve 0xE8 – 0xEB
Reserved 0xD8 – 0xE0
0xE5 – 0xE7
0xEC – 0xF8
Table 4-3. SEC Phase POST Code Table
Functionality Name (Include\
PostCode.h)
Phase PostCode Description
SEC_SYSTEM_POWER_ON
SEC 01 CPU power on and switch to
Protected mode
SEC_BEFORE_MICROCODE_PATCH
SEC 02 Patching CPU microcode
SEC_AFTER_MICROCODE_PATCH
SEC 03 Setup Cache as RAM
SEC_ACCESS_CSR*
SEC 04 PCIE MMIO Base Address initial
SEC_GENERIC_MSRINIT*
SEC 05 CPU Generic MSR initialization
SEC_CPU_SPEEDCFG*
SEC 06 Setup CPU speed
SEC_SETUP_CAR_OK
SEC 07 Cache as RAM test
SEC_FORCE_MAX_RATIO*
SEC 08 Tune CPU frequency ratio to
maximum level