HomeGamingExplanation of motherboard error codes (ASUS, MSI, Gigabyte and more)

Explanation of motherboard error codes (ASUS, MSI, Gigabyte and more)

Last update:

Modern high-end motherboards are often equipped with a Q-Code (error code) display, its only job is to display error codes throughout the PC boot process. You may notice if you have a Q-Code display, that the display quickly cycles through error codes before settling on the manufacturer-set “all good” code when your system finally boots.

The problem with Q-Code screens is that there is nothing to explain what the fault actually is or how you correct it. So we decided to put together a list of commonly encountered Q-Codes for all popular PC brands and provide information about them.

If you’re looking for a new motherboard, here we have a few articles that might help you choose one.

Where is the Q-Code display on my motherboard?

x570 motherboard memory

It’s pretty hard to miss and is usually found somewhere in the upper right corner of the motherboard itself. However, not all motherboards have Q-Code displays, and some rely on beeps or simple lights to display errors.

If your motherboard does not have a Q-Code display, look in the middle right of the motherboard and there may be a cluster of four lights labeled CPU, DRAM, BOOT, and VGA. They are also methods to show errors. If your PC won’t boot, check these four lights while the PC tries to boot.

How do motherboard error codes work?

All motherboard Q-Codes are displayed on a designated motherboard Q-Code display, capable of displaying a number and letter at any time.

The problem is that these screens aren’t very smart and just cycle through codes based on the current state of the system or the current stage of the boot process. If there is a problem, the Q-code screen will stop cycling and display the current code, hopefully giving you an indication of what went wrong.

The idea is that you then take the error code and, using the motherboard manual or the internet, research what that code meant. The idea is that error codes are much easier than taking shots in the dark and using trial and error to diagnose faulty PCs.

That would be true if there was some sort of comprehensive guide to motherboard error codes, and this guide told you how to fix them… Well, we’ve got you covered.

Common ASUS Motherboard Error Codes

asus motherboard error code

Fortunately, there is a dedicated website for finding ASUS error codes. Type your code into ASUSQCode and get answers in seconds.

The most common ASUS Q-Codes are A2, 55, 99, 80, 76, 40, and 62.

  • A2 The IDE detects: Try to connect ONLY the drive where you have/want to install the operating system and make sure that the boot order is correctly configured in the BIOS.
  • 55Memory not installed: you need to install the memory, if the memory is installed, make sure it is installed correctly or try other memory slots if you are sure that the memory is installed correctly and the problem persists.
  • 99 Super initialization IO: This may be due to various reasons. It could be faulty BIOS or faulty motherboard, it could also be due to GPU error. Try running the PC from an integrated graphics card or another GPU/GPU slot. In the first case, try flashing the BIOS to the latest version. If none of these fixes work, consider the possibility that the motherboard is faulty.
  • 80Problem with AI Suite software: Try uninstalling the AI ​​Suite software in safe mode or undo any changes you made before the error code.
  • 76 PCH DXE initialization (specific to the PCH module): It is possible that a USB device is causing the problem, try disconnecting the USB devices one by one, restarting each time, to determine the problematic device. When the device has been located, plug it in after Windows starts and reinstall its drivers.
  • 40System wakes up from S4 sleep state: This is because you have configured Fast Boot/Fast Start on Windows 10/11. Try disabling Fast Boot/Fast Start, which will result in a full shutdown instead of S4 Hybrid state.
  • 62Installing PCH Runtime Services: This is probably a GPU error, try plugging your monitor into your integrated motherboard I/O and using integrated graphics. If the fault goes away, try using another PCIe slot on your motherboard for your GPU. If the fault comes back in one or the other of the slots of the GPU, it is the GPU in question, if the fault comes back in a slot, it is the PCIe slot. Another method is to clear the CMOS and update the BIOS.

Common MSI Motherboard Error Codes

Best X570 Motherboard in 2021 13

There is no website designed specifically for MSI error codes, but there is a dump of ALL error codes that can be found on MSI motherboards on the MSI Forums. Check it out if you can’t find your fault here.

The most common MSI Q-Codes seem to be 90, 0D, 92, A2, D0and 40.

  • 90The boot device selection phase (BDS) is started: This error may indicate that you have a dead processor or a damaged socket. Check that the socket is not damaged and try another processor if you have one. You can also try the same processor on another motherboard, if the problem persists, try another boot device. If none of these solutions offer an answer, it may be time to replace your CPU.
  • 0DReserved for future AMI SEC error codes: This error is very descriptive, but it can refer to RAM, GPU, CPU, and a whole host of other components. This error can usually be fixed by updating the BIOS using the BIOS flash utility while the PC is off.
  • 92PCI bus initialization: This is a GPU fault, and fixing it can be as simple as reseating the graphics card and making sure it’s properly connected to the motherboard. If that fails, try integrated graphics and see if the problem persists. If not, try connecting your GPU to another system or another PCIe slot.
  • A2 The IDE detects: Try to connect ONLY the drive where you have/want to install the operating system and make sure that the boot order is correctly configured in the BIOS.
  • D0CPU initialization error: This usually indicates a problem with the CPU or socket, check the socket and CPU for damage and make sure the CPU is installed correctly. If the problem persists, try flashing your BIOS to the latest version and clearing the CMOS. If nothing helps, your CPU may be dead.
  • 40System wakes up from S4 sleep state: This is because you have configured Fast Boot/Fast Start on Windows 10/11. Try disabling Fast Boot/Fast Start, which will result in a full shutdown instead of S4 Hybrid state.

Common Gigabyte Motherboard Error Codes

x579 motherboard

There is also no dedicated website for finding Gigabyte error codes like Asus does, but we have compiled a list of the most common Q-Codes on Gigabyte motherboards.

The most common Gigabyte Q-Codes seem to be A B, 27, 70, D0, 03and comics.

  • AB – Wait for user command in BIOS setup: This Q-Code is not really an error, more a notification. Your PC should still be fully functional even when viewing this code. Boot into your motherboard’s BIOS and the BIOS will automatically notify you of the cause of the code. This code most often occurs after a BIOS reset or update.
  • 27 – Unspecified Memory Fault: This usually indicates a problem with the PC’s RAM, as it falls between Q-Codes 19 and 31 which specify memory faults. The best thing to do is to reinstall your RAM and check that it is installed correctly, if that doesn’t work try your RAM in another system. If the RAM works in another system, try a BIOS update and clear the CMOS.
  • 70 – PCH DXE initialization: It is possible that a USB device is causing the problem, try disconnecting the USB devices one by one, restarting each time, to determine the problematic device. When the device has been located, plug it in after Windows starts and reinstall its drivers.
  • D0 – Processor initialization error: This usually indicates a problem with the CPU or socket, check the socket and CPU for damage and make sure the CPU is installed correctly. If the problem persists, try flashing your BIOS to the latest version and clearing the CMOS. If nothing helps, your CPU may be dead.
  • 03 – Not specified in manuals: (system wakes up from an S3 sleep state): in simple words, the system is fully usable and stable, error code 03 is just a notification to let you know that your system has woken up successfully from an S3 sleep state.
  • DB – Flash update failed: This is because Q-Flash BIOS does not apply, your best bet is to re-download the BIOS update and reformat the USB drive you are trying to flash the BIOS with. Motherboard won’t let you apply wrong BIOS, so don’t worry about it

How to find a fault from a fault code

As you can see, there are several common Q-Codes for each motherboard.

If your fault is not listed specifically in your motherboard manual, the trick to finding your fault is to decipher which slice your fault is in. For example, RAM defaults are usually between 19 and 31 on most motherboards, unless otherwise specified by a letter. So if your motherboard is throwing a 22 Q-Code, the first place we would tell you to look is RAM.

For “unspecified” or “reserved for future use” codes, you’d better do a specific search for that code online.

Last word

Motherboards come in all shapes and sizes, and so do their flaws. That’s why many high-end motherboards now come with a Q-Code screen to give us an idea of ​​what’s wrong with our PC. Finding the exact cause and solution can be tricky from code, so here we have outlined the most common codes for each motherboard. We hope you enjoyed our article explaining motherboard error codes.

Must Read