They can be found in the manual that came with your motherboard. Or you can download a copy of the manual in the support section of the Asus product page for your specific motherboard. Answer from Ferox63 on reddit.com
ASUS
asus.com › support › faq › 1043948
[Motherboard] Common Q-CODE(Error CODE) and Troubleshooting | Official Support | ASUS Global
Method a: Check for the Q-Code on the Motherboard, which is usually on the left upper edge or lower edge of the motherboard, as shown in the picture below: Method b. Enter into · ASUS Official website , open the Product Spec Page and check if your model support ASUS Q-CODE in Specifications
Reddit
reddit.com › r/asus › can anyone point me towards a list of q-codes?
r/ASUS on Reddit: Can anyone point me towards a list of Q-codes?
April 21, 2024 -
I recently completed a new computer with a StrixX670E-E and, after a short time, it failed to boot and showed a memory error code.
I contacted support, sent it back, and they sent a replacement.
I reassembled my PC and, while it starts, it shows a series of Q-Codes (most appear around memory again) and I am hoping to try and figure out what is going on and, if possible, fix it before it breaks again.
However, I am unable to find a comprehensive list of codes and can only find people talking about them in various forums with generalized and surmised meanings. It would be really nice to have something more official (and which I could use to try and figure out how to diagnose the underlying issue and try and solve it).
Can anyone help me find one?
Top answer 1 of 4
1
Hi there! This is a friendly reminder to change your flair to Support - SOLVED! after your issue has been resolved. It is an immense help for those that may come across your same problem in the future so that they can quickly find the right solution. Thank you! I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.
2 of 4
1
They can be found in the manual that came with your motherboard. Or you can download a copy of the manual in the support section of the Asus product page for your specific motherboard.
MOBO cycling through Q-codes - ROG Forum - ASUS
Hi all, My MOBO is cycling through Q-codes. Typically, I’m getting error codes 33-37, and sometimes 42-49, 50-58. And it just keeps cycling through these error codes non stop even after I'm in Windows 11. My computer feels fine though. Just in windows and doing my own thing but seeing these ... More on rog-forum.asus.com
Asus Q-Codes - What do they mean?
Hi Guys, Recently I built a new computer with my girlfriend and the motherboard we went with was the Asus Maximus VII Ranger. The top right of the motherboard shows a Q-Code on an LED and we are constantly wondering what the codes mean. I've tried to Google and also searched both the Asus and... More on forums.tomshardware.com
9
0
July 20, 2014Q-Code list - Republic of Gamers Forum - 773919
Korth wrote: You might find "undocumented" Q-Codes in the manuals for other/older ASUS (Crosshair) motherboards. Or google, of course. But exactly which error code(s) are you getting? Okay, thanks. I actually managed to get it sorted. Turned out I needed to reinstall my CPU + waterblock. More on rog-forum.asus.com
Q-Codes Under Normal Operation - ROG Forum - ASUS
I have built a couple of desktops with Z97s. I do not have any issues with them, however I'm curious about the meanings of the Q-Codes on both motherboards. Under normal operation one has a Q-code of 00 and another has a Q-code of 30. I've seen threads where people have encountered a Q-code ... More on rog-forum.asus.com
Videos
ASUS Motherboard Troubleshooting via Q-LED indicators, Q ...
09:00
ASUS Q Code C05 X670e Motherboard: ASUS Motherboard Q Codes 🖥️ ...
How to disable the Q-Code LED on ASUS ROG motherboards 😏 #PC #Motherboard #HowToTech #PCTips #PCGaming #GamingPC #Tech | TikTok
05:03
[SOLVED] Asus Q-CODE Error Code C5 Memory Issue New Build x670e ...
XDA Developers
xda-developers.com › home › other hardware › the most commonly seen q-code errors on asus motherboards, and how to fix them
The most commonly seen Q-Code errors on Asus motherboards, and how to fix them
February 22, 2024 - A Q-code LED, in case you are wondering, essentially displays a two-digit code to denote the status of your PC. It's more of a status indicator than an error code LED, and you may notice it cycling through a bunch of rapidly changing codes before ...
Asus
rog-forum.asus.com › t5 › amd-600-series › mobo-cycling-through-q-codes › td-p › 914312
MOBO cycling through Q-codes - ROG Forum - ASUS
March 5, 2024 - RaGeZ wrote: Just built a new system with below specs and after updating to the new bios version same issue with same codes keep appearing The Q-Code LED on the board changes to a CPU temperature display after the BIOS hands over control to the OS.
WePC
wepc.com › home › tips & tricks
Motherboard error codes explained - For Gigabyte, ASUS, and MSI motherboards
February 5, 2024 - Tap your code into ASUSQCode and get answers in seconds. The most common ASUS Q-Codes are A2, 55, 99, 80, 76, 40, and 62.
Asus
zentalk.asus.com › t5 › motherboards › q-codes › td-p › 438782
Q Codes - ASUS - ZenTalk - 438782
August 14, 2024 - Regarding the "CPU fan detection error" message at startup, we recommend visiting the MB model's official website > Support > Manual & Document, selecting the user manual, and verifying that the CPU fan is correctly connected to the corresponding ...
CGDirector
cgdirector.com › home › troubleshoot & fix › troubleshooting asus motherboard error q-codes — everything you need to know
Troubleshooting ASUS Motherboard Error Q-Codes — Everything you need to know
August 15, 2022 - Q-Codes are ASUS’s name for motherboard debug codes.
Homelab-alpha
homelab-alpha.nl › help › asus q-code (error code)
ASUS Q-CODE (Error CODE) | Homelab-Alpha
April 21, 2026 - Official ASUS Documentation For Q-Code · Welcome to the Troubleshooting Guide, your go-to resource for finding solutions to common problems. Whether you’re dealing with hardware issues, software glitches, or connectivity problems, this guide is designed to help you identify and fix the most frequent issues you might encounter.
Ultimate Systems Blog
blog.usro.net › ultimate systems blog › info › hardware info › asus motherboard error codes list explained
ASUS Motherboard Error Codes List Explained – Ultimate Systems Blog
May 26, 2025 - Here’s your comprehensive ASUS motherboard error code list, broken down by categories and what you can do to fix them. Q-Codes are two-digit hexadecimal diagnostic codes that appear on higher-end ASUS motherboards (like ROG, TUF, and ProArt lines).
ASUS
dlcdnet.asus.com › pub › ASUS › mb › socket1150 › Z97-WS › Manual&QVL › Z97-WS_Q-Code.pdf pdf
Q-Code Description Note 0000 Not used 0001
Z97-WS Q-Code Logger: Port 80 posting codes reference list · 0059 · CPU micro-code is not found or micro-code update is failed · 005A · Internal CPU error · 005B · Reset PPI is not available · 005C – 005F · Reserved for future AMI error codes · 00E0 · S3 Resume is stared (S3 Resume ...
Tom's Hardware Forum
forums.tomshardware.com › home › motherboards
Asus Q-Codes - What do they mean? | Tom's Hardware Forum
July 20, 2014 - I don't even understand how I missed the list in the physical manual after going through it 3 times... ... Taken from the Asus Maximus VIII Hero manual (https://fast.ulmart.ru/manuals/3565565.pdf): "The Q-Code LED design provides you with a 2-digit error code that displays the system status.
Ultimate Systems Blog
blog.usro.net › ultimate systems blog › asus q code list
asus q code list – Ultimate Systems Blog
> asus q code list · Hardware Info · If your ASUS motherboard is flashing mysterious error codes at you like it’s trying to speak in binary Morse code—don’t panic (yet). These error codes are part of the POST (Power-On Self-Test) diagnostic process built into your motherboard’s BIOS.
Asus
rog-forum.asus.com › t5 › amd-500-400-series › q-code-list › td-p › 773919
Q-Code list - Republic of Gamers Forum - 773919
March 7, 2024 - Nate152 wrote: Hello unkownmiscreant The codes are listed in your motherboard manual and are the same for all bios versions. I can tell you...there no Q-codes listed (that's ZERO) in my Crosshair VI Extreme motherboard manual.
ASUS
asus.com › support › faq › 1047023
[Motherboard] FAQ of Q-LED Core | Official Support | ASUS Global
2 weeks ago - To provide you more detailed instruction, you can also click ASUS Youtube video link below to know more about Q-LED Core troubleshooting ... Not all motherboards have this function. First, please confirm whether your motherboard supports the Q-LED Core function. ... A1: The Q-LED Core function helps check the issues of components indicated by power LED during the Power-On Self Test (POST). ... Note: You can scan the QR code to view the flashing effect of the power LED.
YouTube
youtube.com › wepc
Website That You Need! Asus Q codes - YouTube
Asus Q Codes is a website to help you to fix Asus motherboard errors. 📖 To find more of our PC Gaming Hardware reviews, head over to:https://www.WePC.com💬 ...
Published September 5, 2022 Views 4K
Asus
rog-forum.asus.com › t5 › other-motherboards › q-codes-under-normal-operation › td-p › 532219
Q-Codes Under Normal Operation - ROG Forum - ASUS
March 6, 2024 - Under normal operation one has a Q-code of 00 and another has a Q-code of 30. I've seen threads where people have encountered a Q-code of 00 when they're encountering an issue, also code 00 is unused according to the manual.
ASUS
zentalk.asus.com › t5 › faq › motherboard-common-q-code-error-code-and-troubleshooting › ta-p › 408097
[Motherboard] Common Q-CODE(Error CODE) and Troubl... - ASUS - ZenTalk - 408097
October 7, 2025 - Method a: Check for the Q-Code on the Motherboard, which is usually on the left upper edge or lower edge of the motherboard, as shown in the picture below: Method b. Enter into · ASUS Official website , open the Product Spec Page and check if your model support ASUS Q-CODE in Specifications
AllThings
allthings.how › all things how › windows › how to troubleshoot asus motherboard error codes
How to Troubleshoot ASUS Motherboard Error Codes
April 9, 2025 - ASUS motherboards use Q-CODEs—two-digit alphanumeric codes displayed on a small LED panel—to indicate hardware issues during the boot process.
Reddit
reddit.com › r/pcmasterrace › anyone know what these asus q-codes mean? several of them aren’t in the motherboard manual. my new build crashed after about 10 hours of using it and won’t boot now.
r/pcmasterrace on Reddit: Anyone know what these Asus Q-Codes mean? Several of them aren’t in the motherboard manual. My new build crashed after about 10 hours of using it and won’t boot now.
March 17, 2021 - Q&A · nesnotioin1 · • · • Edited · The 15 means CPU and Memory error. So personally I'd check the CPU pins and if the RAM is properly installed. CC - Invalid CMOS jumper setting code · C8 - IDK 14 - Pre-memory CPU initialization is ...
Asus
rog-forum.asus.com › t5 › other-motherboards › q-code-what-is-normal › td-p › 392370
Q-CODE - What is normal? - Republic of Gamers Forum - 392370
March 6, 2024 - The book is clear as mud. It says this displays "ERROR" codes. So... if all is functioning 100% then the Q-Code display should - 392370