Invalid memory size or memory modules do not match 53 memory initialization error. Invalid memory type or incompatible memory speed 51 memory initialization error. PEI Error Codes Description 50 memory initialization error. PEI Progress Codes Description 3C – 3E Post-memory PCH initialization (PCH module specific) 4F DXE IPL has started. 38 – 3A Post-Memory System Agent Initialization (System Agent Module Specific) 3B Post-memory PCH initialization is started. 33 CPU post-memory initialization Cache initialization 34 CPU post-memory initialization Application Processor (AP) initialization 35 CPU post-memory initialization Boot Strap Processor (BSP) selection 36 CPU post-memory initialization System Management Mode (SMM) initialization 37 Post-Memory System Agent Initialization is started. Configuring memory 2F Memory initialization (other) 31 Memory Installed 32 CPU post-memory initialization has started. Programming memory timing information 2E Memory initialization. Memory presence detection 2D Memory initialization. Serial Presence Detect (SPD) data reading 2C Memory initialization. 1A – 1C Pre-memory PCH initialization (PCH module specific) 2B Memory initialization. 16 – 18 Pre-Memory System Agent Initialization (System Agent module specific) 19 Pre-memory PCH initialization has started. 12 – 14 Pre-memory CPU initialization (CPU module specific) 15 Pre-memory system agent initialization is started. 11 Pre-memory CPU initialization is started. PEI Progress Codes Description 10 PEI Core has started. 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 SEC Error Codes Description 0C – 0D Reserved for future AMI SEC error codes 0E Microcode not found 0F Microcode is not loaded. MSI Debug LED Code List and Description EC Progress Codes Description 01 Power on. You can also check the right-hand corner near the DIMM slots. You can verify this from your motherboard’s manufacturer manual. You must, however, be certain that your motherboard comes with EZ Debug LEDs. Figuring out what the mistake is can be a difficult task. Yet there could be some mistakes here and there. You might have carefully assembled all the components. This is because, most times, the display will show nothing. Turning on a PC after building can be quite stressful. As a result, you can inspect the affected component using the illuminated LED indicator. They illuminate and indicate which component is faulty. The EZ Debug LEDs help determine whether the problem is with your DRAM, VGA, CPU, or a boot issue.
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