Asus X99-A USB 3.1 User Guide - Page 43

Q-Code LEDs, Q-Code table, Description, 2B - 2F, 3B - 3E - error codes

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5. Q-Code LEDs The Q-Code LED design provides you with a 2-digit error code that displays the system status. Refer to the Q-Code table on the next page for details. Q-Code table Code 00 02 03 04 06 10 11 - 14 15 - 18 19 - 1C 2B - 2F 30 31 32 - 36 37 - 3A 3B - 3E 4F 50 - 53 4F 54 55 56 57 58 Description Not used microcode CACHE_ENABLED PCH initialization CPU_EARLY_INIT 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) Memory Installed CPU post-memory initialization Post-Memory System Agent initialization is started Post-Memory PCH initialization is started DXE IPL is started Memory initialization error. Invalid memory type or incompatible memory speed DXE IPL is started Unspecified memory initialization error Memory not installed Invalid CPU type or Speed CPU mismatch CPU self test failed or possible CPU cache error (continued on the next page) ASUS X99-A/USB 3.1 1-27 Chapter 1

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ASUS X99-A/USB 3.1
1-27
Chapter 1
5.
Q-Code LEDs
The Q-Code LED design provides you with a 2-digit error code that displays the system
status. Refer to the Q-Code table on the next page for details.
Q-Code table
(continued on the next page)
Code
Description
00
Not used
02
microcode
03
CACHE_ENABLED
04
PCH initialization
06
CPU_EARLY_INIT
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)
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
4F
DXE IPL is started
50 – 53
Memory initialization error. Invalid memory type or incompatible memory
speed
4F
DXE IPL is started
54
Unspecified memory initialization error
55
Memory not installed
56
Invalid CPU type or Speed
57
CPU mismatch
58
CPU self test failed or possible CPU cache error