Gigabyte GA-990FX-Gaming User Manual page 36

3-3 Debug LED Codes
Regular Boot
Code Description
10 PEI Core is started.
11 Pre-memory CPU initialization is started.
12~14
15 Pre-memory North-Bridge initialization is started.
16~18
19 Pre-memory South-Bridge initialization is started.
1A~2A
2B~2F Memory initialization.
31 Memory installed.
32~36 CPU PEI initialization.
37~3A IOH PEI initialization.
3B~3E PCH PEI initialization.
3F~4F
60
61
62 Installation of the PCH runtime services.
63~67
68 PCI host bridge initialization is started.
69
6A IOH SMM initialization.
6B~6F
70
71 PCH SMM initialization.
72 PCH devices initialization.
73~77
78 ACPI Core initialization.
79 CSM initialization is started.
7A~7F
80~8F
90
91 Issue event to connect drivers.
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