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 Description

00Not used

02microcode

03CACHE_ENABLED

04PCH initialization

06CPU_EARLY_INIT

10PEI 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

30Reserved for ASL (see ASL Status Codes section below)

31Memory 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

54Unspecified memory initialization error

55Memory not installed

56Invalid CPU type or Speed

57CPU mismatch

58CPU self test failed or possible CPU cache error

(continued on the next page)

Chapter 1

ASUS X99-A

1-25