53
Onboard LEDs
0F Microcode not loaded
PEI Progress Codes
10
11
12 - 14
15 Pre-memory System Agent initialization is started
16 - 18
19
1A - 1C
2B
2C Memory initialization. Memory presence detection
2D Memory initialization. Programming memory timing information
2E
2F
31 Memory Installed
32
33
34
35
36
initialization
37 Post-Memory System Agent initialization is started
38 - 3A
3B
3C - 3E
4F DXE IPL is started
PEI Error Codes
50
Memory initialization error. Invalid memory type or incompatible memory
speed
51 Memory initialization error. SPD reading has failed
52
Memory initialization error. Invalid memory size or memory modules do
not match
53 Memory initialization error. No usable memory detected
54 Unspecified memory initialization error
55 Memory not installed
56
57
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