Asus ROG STRIX X399-E GAMING Manual page 26

Q-Code table
Code Description
00 Not used
Power on. Reset type detection (soft/hard).
01
AP initialization before microcode loading
02
System Agent initialization before microcode loading
03
PCH initialization before microcode loading
04
06 Microcode loading
07 AP initialization after microcode loading
08 System Agent initialization after microcode loading
09 PCH initialization after microcode loading
0B Cache initialization
0C – 0D Reserved for future AMI SEC error codes
0E Microcode not found
Microcode not loaded
0F
PEI Core is started
10
Pre-memory CPU initialization is started
11 – 14
15 – 18 Pre-memory System Agent initialization is started
19 – 1C Pre-memory PCH initialization is started
2B – 2F Memory initialization
30 Reserved for ASL (see ASL Status Codes section below)
31 Memory Installed
32 – 36 CPU post-memory initialization
37 – 3A Post-Memory System Agent initialization is started
3B – 3E Post-Memory PCH initialization is started
DXE IPL is started
4F
Memory initialization error. Invalid memory type or incompatible memory
50 – 53
speed
Unspecified memory initialization error
54
55 Memory not installed
56 Invalid CPU type or Speed
57 CPU mismatch
58 CPU self test failed or possible CPU cache error
59 CPU micro-code is not found or micro-code update is failed
1-12
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Chapter 1: Product Introduction