Asus P9X79 PRO User Manual - Page 42

Q-Code LEDs, Q-Code table - error code

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5. Q-Code LEDs The Q-Code LED design provides you the 2-digit display, allowing you to know the system status. Refer to the Q-Code table below for details. Chapter 2 Q-Code table Code 00 01 02 03 04 06 07 08 09 0B 0C - 0D 0E 0F 10 11 - 14 15 - 18 19 - 1C 2B - 2F 30 Description Not used Power on. Reset type detection (soft/hard). AP initialization before microcode loading System Agent initialization before microcode loading PCH initialization before microcode loading Microcode loading AP initialization after microcode loading System Agent initialization after microcode loading PCH initialization after microcode loading Cache initialization Reserved for future AMI SEC error codes Microcode not found Microcode not loaded PEI Core is started Pre-memory CPU initialization is started Pre-memory System Agent initialization is started Pre-memory PCH initialization is started Memory initialization Reserved for ASL (see ASL Status Codes section below) 2-22 Chapter 2: Hardware information

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2-22
Chapter 2: Hardware information
Chapter 2
5.
Q-Code LEDs
The Q-Code LED design provides you the 2-digit display, allowing you to know the
system status. Refer to the Q-Code table below for details.
Q-Code table
Code
Description
00
Not used
01
Power on. Reset type detection (soft/hard).
02
AP initialization before microcode loading
03
System Agent initialization before microcode loading
04
PCH initialization before microcode loading
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
0F
Microcode not loaded
10
PEI Core is started
11 – 14
Pre-memory CPU initialization is started
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)