Asus Motherboard Error Codes List – A Guide to Asus Motherboard Error Codes

Asus motherboards display POST diagnostic error codes between 00 and 0xAA to indicate issues during the Power On Self Test (POST) process. Failure to boot properly or instability during operation also triggers debug codes pointing to exact failing components.

However, the confusing two-character Asus error code displayed provides hardly any context for average users to identify and troubleshoot problems. We will explore what different Asus motherboard error codes signify, their most common reasons, and tested solutions to get the system functioning optimally again.

Equipped with this guide, you will no longer panic about seeing POST error codes on your Asus motherboard but confidently diagnose and resolve underlying hardware or software faults through appropriate corrective steps.

List of Common Asus Motherboard Error Codes and Solutions

Here is an exhaustive list of the most frequently observed Asus motherboard error codes from 00 to 0XAA and their meanings:

Code	Meaning
00	Not used (the CPU is not initializing.)
01	Power on. Reset type detection (soft/hard).
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
0A	Initialization after microcode loading
0B	Cache initialization
0C – 0D	Reserved for future AMI SEC error codes
0E	Microcode not found
0F	Microcode not loaded
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	Unspecified memory initialization error
54	Invalid memory type or incompatible memory speed
55	Memory not installed
56	Invalid CPU type or Speed
57	CPU mismatch
58	CPU self test failed or possible CPU cache error
59	CPU micro-code is not found or micro-code update is failed
5A	Internal CPU error
5B	Reset PPI is not available
5C – 5F	Reserved for future AMI error codes
E0	S3 Resume is stared (S3 Resume PPI is called by the DXE IPL)
E1	S3 Boot Script execution
E2	Video repost
E3	OS S3 wake vector call
E4 – E7	Reserved for future AMI progress codes
E8	S3 Resume Failed
E9	S3 Resume PPI not Found
EA	S3 Resume Boot Script Error
EB – EF	Reserved for future AMI error codes
F0	Recovery condition triggered by firmware (Auto recovery)
F1	Recovery condition triggered by user (Forced recovery)
F2	Recovery process started
F3	Recovery firmware image is found
F4	Recovery firmware image is loaded
F5 – F7	Reserved for future AMI progress codes
F8	Recovery PPI is not available
F9	Recovery capsule is not found
FA	Invalid recovery capsule
FB – FF	Reserved for future AMI error codes
60	DXE Core is started
61	NVRAM initialization
62	Installation of the PCH Runtime Services
63-67	CPU DXE initialization is started
68	PCI host bridge initialization
69	System Agent DXE initialization is started
6A	System Agent DXE SMM initialization is started
6B	System Agent DXE initialization (System Agent module specific)
6C	PCH DXE initialization is started
6D	PCH DXE SMM initialization is started
6E	PCH devices initialization
6F	PCH DXE Initialization (PCH module specific)
70	ACPI module initialization
71	CSM initialization
72	Reserved for future AMI DXE codes
73	Boot Device Selection (BDS) phase is started
74	Driver connecting is started
75	PCI Bus initialization is started
76	PCI Bus Hot Plug Controller Initialization
77	PCI Bus Enumeration
78	PCI Bus Request Resources
79	PCI Bus Assign Resources
7A	Console Output devices connect
7B	Console input devices connect
7C	Super IO Initialization
7D	USB initialization is started
7E	USB Reset
7F	USB Detect
90	USB Enable
91	Reserved for future AMI codes
92	IDE initialization is started
93	IDE Reset
94	IDE Detect
95	IDE Enable
96	SCSI initialization is started
97	SCSI Reset
98	SCSI Detect
99	SCSI Enable
9A	Setup Verifying Password
9B	Start of Setup
9C	Reserved for ASL (see ASL Status Codes section below)
9D	Setup Input Wait
9F	Reserved for future AMI codes
A0	IDE initialization is started
A1	IDE Reset
A2	IDE Detect
A3	IDE Enable
A4	SCSI initialization is started
A5	SCSI Reset
A6	SCSI Detect
A7	SCSI Enable
A8	Setup Verifying Password
A9	Start of Setup
AA	Reserved for ASL (see ASL Status Codes section below)
AB	Setup Input Wait
AC	Reserved for ASL (see ASL Status Codes section below)
AD	Ready To Boot event
AE	Legacy Boot event
AF	Exit Boot Services event
B0	Runtime Set Virtual Address MAP Begin
B1	Runtime Set Virtual Address MAP End
B2	Legacy Option ROM Initialization
B3	System Reset
B4	USB hot plug
B5	PCI bus hot plug
B6	Clean-up of NVRAM
B7	Configuration Reset (reset of NVRAM settings)
B8-BF	Reserved for future AMI codes
D0	CPU initialization error
D1	System Agent initialization error
D2	PCH initialization error
D3	Some of the Architectural Protocols are not available
D4	PCI resource allocation error. Out of Resources
D5	No Space for Legacy Option ROM
D6	No Console Output Devices are found
D7	No Console Input Devices are found
D8	Invalid password
D9	Error loading Boot Option (LoadImage returned error)
DA	Boot Option is failed (StartImage returned error)
DB	Flash update is failed
DC	Reset protocol is not available
0X01	System is entering S1 sleep state
0X02	System is entering S2 sleep state
0X03	System is entering S3 sleep state
0X04	System is entering S4 sleep state
0X05	System is entering S5 sleep state
0X10	System is waking up from the S1 sleep state
0X20	System is waking up from the S2 sleep state
0X30	System is waking up from the S3 sleep state
0X40	System is waking up from the S4 sleep state
0XAC	System has transitioned into ACPI mode. The interrupt controller is in PIC mode
0XAA	System has transitioned into ACPI mode. The interrupt controller is in APIC mode

Effective Solutions for Common ASUS Motherboard Error Codes

According to the table above, we can device the errors in 4 different categories:

1. CPU Issues
2. RAM Issues
3. GPU Issues
4. Other Abnormalities.

Let’s see how you can troubleshoot these issues below:

Troubleshoot CPU Issues

The following error codes indicate CPU issues with the ASUS motherboard: 

00, D0, B0, 99, 15, 53, 00, 19, 30, 40, and 55.

To fix the error code, here are the steps to follow:

Step 1: Go to ASUS Download Center and input the model name of the motherboard.

Step 2: Choose the model name from the list and click “CPU / Memory Support”.

Step 3: Check the compatibility of the motherboard and the CPU by locating the name of the CPU in the QVL list.

Step 4: Also check if the BIOS version is as recommended. If not, download and install the BIOS version.

Step 5: Remove the CPU, and clean dust and debris from the socket.

Step 6:  Check if any CPU pin is broken. If yes, then replace it with a good one and re-install the CPU.

Troubleshoot RAM Issues

The following error codes indicate RAM or Memory issues with the ASUS motherboard: 

53, 55, F9, B0, 99, 15, 53, D6, 00, 19, 30, 40, and 55.

To fix the error code, here are the steps to follow:

Step 1: Reinstall the memory to ensure it is fully seated.

Set 2: Examine the memory pins and motherboard memory slot for any dirt. If present, clean it thoroughly before attempting to reinstall.

Step 3: If you have multiple memory sticks, try installing with a single stick initially. If the system successfully boots, power down and repeat the process for each memory stick to identify any faulty modules.

Step 4: Check your model’s user manual for recommended memory configurations.

Troubleshoot GPU Issues

The following error codes indicate GPU issues with the ASUS motherboard: 

D6, 00, 19, 30, 40, 55, and 62.

To fix the error code, here are the steps to follow:

Step 1: If you have integrated graphics, then re-install the CPU to fix the issue.

Step 2: If you have an external graphics card, then re-install the Graphics card first.

Step 3: If this can’t fix the issue, then inspect the PCI-E Pin on the motherboard and Graphics card for any dirt. If present, clean it thoroughly before retrying.

Step 4: If the external Graphics card has a power interface, ensure proper connection.

Troubleshoot Other Abnormalities

The following error codes indicate other abnormalities like the boot issue or issues with external devices with the ASUS motherboard: 

D6, 00, 19, 30, 40, 55, 99, etc.

To fix the error code, here are the steps to follow:

• Reconnect the SATA cable to both the motherboard and the hard disk to secure a stable connection.
• For M.2 SSD concerns, reconnect the M.2 SSD and ensure the M.2 screw is securely fastened.

• Inspect the Gold pins on the M.2 SSD and M.2 slot on the motherboard for any dirt. Clean thoroughly if dirt is found.
• If the problem persists, consider replacing the SATA cable, SATA port, or SATA hard disk (M.2 SSD) and retry.
• For external device abnormalities, power off and remove all external devices (e.g., PCI-E card, Raid card) from the motherboard.
• Reboot the computer. If it powers on normally, reconnect external devices one by one to identify the problematic device or cable.
• If the monitor exhibits abnormalities, ensure the monitor is powered on first, and check the indicator light to confirm the power cable’s correct connection.
• Verify the signal cable (VGA/DVI/HDMI/DisplayPort) connection to the monitor and computer’s display output. Replug the cable, ensuring no bent pins.
• Confirm the correct display output on the monitor, matching the computer’s connection type.
• Test by replacing the cable (VGA/DVI/HDMI/DisplayPort).
• Connect the monitor to another computer to eliminate potential monitor issues.
• If the monitor displays BIOS, proceed to troubleshoot boot-up device abnormalities to confirm the hard disk or SSD’s functionality.

Conclusion

Asus motherboards provide POST error code diagnostics through 2-digit debug displays as the system boots up to rapidly indicate any component failures. We have provided all the error codes by ASUS motherboard, their meaning, likely root causes, and troubleshooting solutions to resolve problems, avoiding prolonged downtimes. Equipped with this handy error code reference list, you can now confidently troubleshoot Asus motherboard POST issues quickly by accurately interpreting the cryptic alpha-numeric patterns into appropriate corrective actions. Feel free to leave queries in the comments section below if any further clarifications are needed! Thanks for reading this guide on deciphering Asus error codes.