Gigabyte GA-Z87X-UD5 TH User Manual download pdf (Page 130)

Appendix

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6-3 Debug LED Codes

Code Description

10 PEI Core is started.

11 Pre-memoryCPUinitializationisstarted.

12~14 Reserved.

15 Pre-memoryNorth-Bridgeinitializationisstarted.

16~18 Reserved.

19 Pre-memorySouth-Bridgeinitializationisstarted.

1A~2A Reserved.

2B~2F Memoryinitialization.

31 Memory installed.

32~36 CPUPEIinitialization.

37~3A IOHPEIinitialization.

3B~3E PCHPEIinitialization.

3F~4F Reserved.

60 DXE Core is started.

61 NVRAMinitialization.

62 Installation of the PCH runtime services.

63~67 CPUDXEinitializationisstarted.

68 PCIhostbridgeinitializationisstarted.

69 IOHDXEinitialization.

6A IOHSMMinitialization.

6B~6F Reserved.

70 PCHDXEinitialization.

71 PCHSMMinitialization.

72 PCHdevicesinitialization.

73~77 PCHDXEinitialization(PCHmodulespecic).

78 ACPICoreinitialization.

79 CSMinitializationisstarted.

7A~7F Reserved for AMI use.

80~8F ReservedforOEMuse(OEMDXEinitializationcodes).

90 PhasetransfertoBDS(BootDeviceSelection)fromDXE.

91 Issue event to connect drivers.

Regular Boot

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Gigabyte GA-Z87X-UD5 TH User Manual Page 130