Post Codes
These tables describe the POST codes and descriptions during the POST.
Chipset POST Codes
The following table details the chipset POST codes and functions used in the POST.
Port 80 Code | Driver Name | Port 80 Code | Driver Name |
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01 | PeiEventLog | 41 | StatusCode |
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02 | OemServices | 42 | Variable |
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03 | SioInit | CF | SmmVariable |
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04 | MonoStatusCode | 43 | EmuVariable |
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08 | PentiumMCpuPeim | A2 | TcgDxe |
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09 | PlatformStage1 | A3 | PhysicalPresence |
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0A | Variable | AE | TpmDriver |
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0B | IchInit | AE | TcgSmm |
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0D | PlatformStage2 | AE | PhysicalPresenceReadyT |
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| oBoot |
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0E | IchSmbusArpDisabled | AD | DataHubRecordPolicy |
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12 | ClockGen | 86 | Undi |
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13 | OpPresence | 90 | SNP |
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14 | TcgPei | 91 | BC |
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15 | FindFv | 92 | PxeDhcp4 |
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2F | DxeIpl | 93 | Ebc |
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10 | LightMemoryInit | 4D | IsaBus |
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11 | S3ResumeSoftSmi | 4E | IsaSerial |
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31 | Crc32SectionExtract | 6D | Ps2Mouse |
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A4 | OemServices | 4F | IdeBus |
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A5 | EventLog | 50 | LightPciBus |
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32 | ScriptSave | 6E | UsbBot |
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33 | AcpiS3Save | 6F | UsbCbi0 |
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34 | SmartTimer | 70 | UsbCbi1 |
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35 | JpegDecoder | 71 | UsbKb |
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36 | PcxDecoder | 72 | UsbMassStorage |
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8A | PlatformBds | 74 | UsbMouse |
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37 | MpCpu | 8F | Ehci |
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38 | LegacyMetronome | 73 | Uhci |
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39 | FtwLite | 75 | UsbBus |
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3A | Runtime | C2 | SmmBase |
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3B | MonotonicCounter | C5 | SmmDisp |
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3C | WatchDogTimer | C4 | SmmReloc |
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3D | SecurityStub | C7 | SmmRuntime |
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3E | CpuIo | C9 | SmmThunk |
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3F | Cf9Reset | D8 | OemServices |
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40 | PcRtc | 44 | ChipsetInit |
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Chapter 4 | 151 |
