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