reddit.com › r/pcmasterrace › asus q-codes jumping between 30, 31, 32 after normal boot

r/pcmasterrace on Reddit: Asus Q-codes jumping between 30, 31, 32 after normal boot

March 30, 2023 -

Asus Strix z790-E, 13700K, 2x16 Trident Z 6800, 3060TI, Win 11, dual monitors

Just got this put together last week, everything appears normal, XMPI profile enabled and seems to be running at 6800.

But after boot to windows, everything normal and seems to be running as expected, the q-code keeps jumping back and forth from 30, 31, and 32. Does this right after boot, without going to sleep. Been watching it for 5+ minutes after normal boot, still doing it.

Is this normal? I thought once the computer was booted up, the q-code should should be stable at A0 or something.

Top answer

1 of 2

You should probably read the "BIOS" version of the manual to be sure. Some ASUS boards will use that as a temperature display. https://i.imgur.com/BMGBkMU.png

2 of 2

https://www.asusqcodes.com/ Your system is cycling through memory messages. Re-seat the RAM sticks, bad connections are common with those electrically-dense slots, individual pins sometimes fail to click in, even when the little brackets are properly locked.

Asus

rog-forum.asus.com › t5 › hardware-build-advice › q-code-led-function-31-32-33-and-36 › td-p › 963157

Q-Code LED function 31,32,33 and 36 - Republic of Gamers Forum - 963157

October 11, 2023 - It turns out that in the UEFI under Advanced>Onboard Devices Configuration>LED Lighting the Q-Code LED function is set to Auto which means not only does it show codes but it also shows cpu temperature.

Asus

rog-forum.asus.com › t5 › amd-800-series › asus-rog-strix-x870e-e-q-code-31-g-skill-6000mhz-cl26-and › td-p › 1089060

ASUS ROG Strix x870E-E q-code 31. G.SKILL 6000MHZ ... - Republic of Gamers Forum - 1089060

April 14, 2025 - Motherboard displays code 31 if I have the ram installed in all configurations except if I set one pin to the third slot from the cpu. Then it gives q-code EC.

Asus

rog-forum.asus.com › t5 › zenith-extreme-x399-e › oled-display-in-motherboard-quot-code-31-check-cpu-quot › td-p › 744770

Oled Display in Motherboard: "Code 31 Check CPU" - Republic of Gamers Forum - 744770

March 6, 2024 - Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. ... Hi All, I had just put together an AMD Ryzen Threadripper system which consists of: 1. CPU: Ryzen Threadripper 1925x 2. Motherboard: Asus Zenith Extreme 3. RAM: 32 Gb Corsair Vengeance 3000 (16GB x 2) 4. Asus GTX 1080 I had tried to overcloak it by running the AI Suite 3. After that, my system was freezing up sometimes and then this error message: "Code 31 Check CPU" came on in the small Oled display on the motherboard.

Asus

rog-forum.asus.com › t5 › amd-600-series › q-codes-31-32-33-alternating-after-boot › td-p › 923253

Q codes 31 32 33 alternating after boot - Republic of Gamers Forum - 923253

April 15, 2023 - Q-codes are only displayed during POST. After control is handed from the BIOS to the OS, it changes to a temperature display. ... Intel 3770K 4.4ghz, 1.24v. . . . . . . . . . . . . .Intel 4930k 4.7ghz 1.37v........AMD 7800x3D async 104 32 gGSkill DR3Trident 2400mhz 1.65v. . . .32 g 1866 Vengeance Pro.......64 g Hynix 6200 ASUS M5G.

reddit.com › r/asus › x870e apex – post code 31, cpu q-led stays on, no display – tried 2 cpus, flashback, multiple ram kits

r/ASUS on Reddit: X870E Apex – POST Code 31, CPU Q-LED stays on, no display – tried 2 CPUs, Flashback, multiple RAM kits

June 22, 2025 -

I'm trying to get my brand new ASUS ROG Crosshair X870E Apex to POST, and I’m stuck at POST code 31 with CPU Q-LED solid on. There’s no display output at any point.

My Setup:

Motherboard: ASUS ROG Crosshair X870E Apex
CPU: Ryzen 9 9950X3D (also tested 9800X3D)
RAM: Tried multiple DDR5 kits
GPU: 4090 Discrete GPU installed
PSU: Corsair AX1600i 1600W, known good
Cooling: Custom loop

What I’ve Tried:

Cleared CMOS multiple times
Updated BIOS via Flashback (successfully completed)
Tested two CPUs (9950X3D and 9800X3D)
Multiple RAM kits, both slots and one stick at a time, all known-good
Stripped system down to only CPU, one stick of RAM, PSU, and GPU
Checked socket pins carefully – looks clean
Tried Retry, Safe Boot, LN2 Mode, and Slow Mode – no change
BIOS Flashback LED blinks and completes as expected
Q-LED behavior: DRAM LED is on during memory training, then goes off; CPU LED comes on and stays on
POST code always gets to 31 and then stops

At this point, I’m thinking it’s a bad board, but hoping someone here might have a fix or see something I missed before I RMA.

Top answer

1 of 4

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2 of 4

memory was in a2 and b2 when tested??? ah well it olny has 2 i guess did you make sure you used the 4+4 cpu labeled cables ?

ASUS

asus.com › support › faq › 1043948

[Motherboard] Common Q-CODE(Error CODE) and Troubleshooting | Official Support | ASUS Global

ASUS Official website , open the Product Spec Page and check if your model support ASUS Q-CODE in Specifications

Asus

rog-forum.asus.com › t5 › amd-800-series › severe-instability-q-code-31-on-cold-boot-and-wake-from-sleep › td-p › 1141985

Severe instability (Q-Code 31) on cold boot and wake from sleep - ASUS X870E + Ryzen 7 9800X3D

March 25, 2026 - Given all these erratic symptoms (Q-Code 31 on cold boots that survived a careful CPU reseat, and now random USB initialization failures), it's completely clear that this specific motherboard has an intermittent physical hardware defect (perhaps ...

WePC

wepc.com › home › tips & tricks

Motherboard error codes explained - For Gigabyte, ASUS, and MSI motherboards

February 5, 2024 - If your fault isn’t listed specifically in your motherboard manual, the trick to finding your fault is deciphering what bracket your fault fits into. For example, RAM faults usually fall between 19 and 31 on most motherboards, unless specified ...

Asus

rog-forum.asus.com › t5 › intel-700-600-series › rog-strix-z90-e-q-code-always-change-when-my-computer-is-running › td-p › 969676

ROG STRIX Z90-E : Q-Code always change when my computer is running (27-28-29-30-31)

November 6, 2023 - When my pc is running, with windows 11, all seems to be fine, but the Q-code on the motherboard always show some errors codes : 27- 28 - 29 - 30 (often on this value) - 31

Find elsewhere

Google Bing Mojeek

ASUS

asus.com › support › faq › 1052292

[NUC] Error Code 31 in Device Manager for Smart Sound Technology on NUC | Official Support | ASUS Global

ASUS provides the above information for reference only. If you have any questions about the content, please contact the above product vendor directly.

Asus

rog-forum.asus.com › t5 › gaming-motherboards › red-amp-white-q-codes-during-post-15-31-68-70-with-brand-new › td-p › 1050428

Solved: Red & White Q-Codes during Post: 15, 31, 68, 70 (w... - Republic of Gamers Forum - 1050428

October 19, 2024 - Q-Codes fluctiates, as if there’s multiple problems, where the numbers standing out are (Red 15, 31) (White 68, 70). Booting into Windows isn’t an issue, however, the stability of the system is the most important. How can I tell which component is the non-working one? The components: Asus ROG ...

Asus

rog-forum.asus.com › t5 › intel-700-600-series › z790-hero-with-xmp-6800-error-code-31 › td-p › 999727

Solved: Z790 HERO with XMP 6800 error code 31 - Republic of Gamers Forum - 999727

March 7, 2024 - Hi guys. I'm having an issue very similar to the issue solved here: Solved: Z790 HERO with XMP 7200 fails - Republic of Gamers Forum - 938398 (asus.com). My build is: ROG Z790 MAXIMUS HERO (last bios 1202) CPU: i9 13900KS DDR: 4x 32 GB G.SKILL TRIDENT Z5 RGB 6800 CL34-45-45-108 1.40V I've tried ...

Asus

rog-forum.asus.com › t5 › zenith-extreme-x399-e › oled-display-code-31-initial-rom › td-p › 857103

OLED display Code 31 Initial ROM - ROG Forum - ASUS

March 7, 2024 - Any ideas on how to deal with this issue. Memory test and benchmarks do not reveal any issues. ROG Zenith Extreme BIOS 16.01 - 857103

Asus

rog-forum.asus.com › t5 › z270 › another-code-discussion-code-30 › td-p › 777309

Another Code Discussion - Code 30 - ROG Forum - ASUS

March 6, 2024 - Hey, when I got the PC and built it. I used to get the code 40. I formatted the PC and installed windows 10 x64 in UEFI mode GPT. Now when I boot I get code 30, sometimes it switches to 28-29 and 31.... But mostly 30. All these codes represent something with memory.

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 - In BIOS go to Advanced>Onboard Devices Configuration then scroll down to LED Lighting>Q-Code LED Function, change to Post Code Only. 7 Kudos · Reply · Post Reply · Related Content · STRIX X870E-E won't power on - No QCodes - Completely Dead in AMD_800_Series 03-31-2026 ·

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 - Let's look at some of the most commonly seen Q-Code errors on Asus motherboards along with simple and potential ways to fix them.

MMO-Champion

mmo-champion.com › forum › off-topic forums › computer

RAM Issue & Error Code 31 Issue

February 14, 2015 - Update: RAM Issue has been fixed. Now all that is left is to fix the code 31 Error. Hello Everyone, For the RAM issue I have it has been bothering me for quite a while now. What is happening with the RAM issue is my computer is using up a lot of ram when it is just sitting there idle for most ...

reddit.com › r/buildapc › error code 30/31 with 4 sticks ddr5 ram.

r/buildapc on Reddit: Error code 30/31 with 4 sticks ddr5 ram.

November 30, 2022 -

Just put together a new build: Asus z790 hero motherboard Trident z5 16gb 6000 (36-36-36-39 1.35v) i13700k (windows 10 pro 64bit) Aorus master 4090.

2 sticks of ram boot fine. I try 4 sticks and I end up with memory error codes and a blank screen. Xmp 1 profile set. All drivers up to date in asus aurmor crate app. I can interchange any 2 sticks so theyre all in working order. Computer just doesnt want to boot with 4, even in safe mode or bios.

Any advice would be appreciated. Im running out of troubleshooting ideas at this point.