4-20 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.
POST Code Range 0
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
Post
Code
Description
SEC_SYSTEM_POWER_ON SEC 1 CPU power on and switch to
Protected mode
SEC_BEFORE_MICROCODE_PATCH SEC 2 Patching CPU microcode
SEC_AFTER_MICROCODE_PATCH SEC 3 Setup Cache as RAM
SEC_ACCESS_CSR* SEC 4 PCIE MMIO Base Address
initial
SEC_GENERIC_MSRINIT* SEC 5 CPU Generic MSR
initialization
SEC_CPU_SPEEDCFG* SEC 6 Setup CPU speed
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