Asus P8Z77-V DELUXE Manual page 48

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).
AP initialization before microcode loading
02
System Agent initialization before microcode loading
03
PCH initialization before microcode loading
04
06 Microcode loading
AP initialization after microcode loading
07
System Agent initialization after microcode loading
08
PCH initialization after microcode loading
09
Cache initialization
0B
0C – 0D Reserved for future AMI SEC error codes
0E Microcode not found
0F Microcode not loaded
10 PEI Core is started
Pre-memory CPU initialization is started
11 – 14
Pre-memory System Agent initialization is started
15 – 18
Pre-memory PCH initialization is started
19 – 1C
Memory initialization
2B – 2F
30 Reserved for ASL (see ASL Status Codes section below)
31 Memory Installed
CPU post-memory initialization
32 – 36
Post-Memory System Agent initialization is started
37 – 3A
ASUS P8Z77-V DELUXE
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