Debug Led Codes; Regular Boot - Gigabyte GA-Z77X-UD3H User Manual

5-4

Debug LED Codes

Regular Boot

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 specific).
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.
- 113 - Appendix