error code 15 asus motherboard

June 22, 2025 - Because you don't have a cpu cooler installed the cpu is overheating, the motherboard is shutting off to prevent cpu damage. Go ahead and install everything in your case including your cpu cooler and see how it goes. ... Code 15 = Memory training ...

Asus

rog-forum.asus.com › t5 › hardware-build-advice › q-code-15 › td-p › 970739

Solved: Q code 15 - Republic of Gamers Forum - 970739

November 28, 2023 - Combining and mixing memory kits isn't supported by memory or motherboard vendors. This is because memory vendors bin and validate the memory kit in the density in which it is sold.

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reddit.com

r/PcBuildHelp on Reddit: Asus x870ne code 15 and then shutting down

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AM5 Code 46 or 15 reboot freeze X670e Motherboard start up problem ...

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r/AMDHelp on Reddit: No POST stuck in loop with code 15

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reddit.com › r/asusrog › error code 15 fix

r/ASUSROG on Reddit: Error code 15 fix

January 21, 2025 -

Hi all! I have just gotten the b650e-e and can't get past this error code. I got past it before through bios flashback but now since booting again I cannot get past it. I have reinserted everything and tried to reinstall the flashback but nothing.

I have been through everything and simply cannot find a solution.

PLEASE HELP!!

Top answer

1 of 5

I have same board and I just recently began receiving the A9 error I think it is on every other boot after a recent bios update. But mine sits at 15 for about 45 seconds before finally progressing with the boot.

2 of 5

first only clear Cmos and see if your pc will work if not worked clear Cmos and remove battery if not worked shutdown your pc unplug psu power cable switch your ram stick places wait for couple of minutes and start your pc should work if after you switch your sticks places still doesn't work you may have to remove cpu and then install it again or just open cpu locker and relock it and start your pc

Hardware Canucks

hardwarecanucks.com › home › forums › pc builders & tweakers corner › troubleshooting

Fixed! - First Post - ASUS Crosshair VIII Q-code stops at 15 | Hardware Canucks

August 15, 2020 - Okay, just tried my first POST after confirming that the loop was working fine. No error code beeps, but the Q-code gets to 15, then restarts and stops at 15... That Q-code is "Pre-memory System Agent Initialization Started". Have a pair of Trident Z NEO DDR 16 GB ram in slots DIMM_A2 and...

reddit.com › r/techsupport › q code 15 - faulty motherboard or cpu?

r/techsupport on Reddit: Q CODE 15 - Faulty Motherboard or CPU?

December 12, 2020 -

Hello,

I recently got my new components to upgrade my old system which was originally built in 2012 with Intel Ivy bridge.

New components: Asus Crosshair VIII Hero Dark, 5900X and T-Force XTREEM AERG 3600Mhz CL14 32GB.

After installing the components I am greeted by a Q CODE 15 and the Q LED shinning yellow / orange on the DRAM. I have tested the ram at a friends older Intel 8700k system and it was just fine. Booted right up and showed no signs of being bad.

I have since then tried basically everything from clearing CMOS to running outside the case, only 8-pin and 24-pin power plugged in. Running without the CPU cooler inside the case and outside the case, checked for overtightened screws, loose screws, potential shorting, tried both ram stick one at a time in all the slots. I have also updated the bios twice to 3003 bios.

One time I got a Q CODE 00 after I held the clear CMOS for over 10 seconds, but I assume it was frozen or something since it didn't react to the power button and I had to switch off the PSU entirely.

I can't think of anything else to check now. I would need a completely different system to check motherboard and CPU. I've spent more than 8 hours trying to figure this out...

I am out of ideas and quite frustrated. Do anyone of you have any suggestions to what I can do or have experienced this yourself and solved it?

Anything is appreciated! Thank you very much!

Very late update: Board was defective. After some years with the Dark Hero now, I can confirm this error was due to the board being incapable of training the ram. Would suspect poor traces or faulty SoC voltage supply with either too high/low voltage or a very very poor signal (data eye). Which in turn meant the UMC on the CCX was unable to train the memory.

Top answer

1 of 2

If the memory worked fine on another motherboard, then it's probably your motherboard. CPU's are very rarely bad.

2 of 2

I just encountered this issue last night. Through a couple hard resets and power cycles, I had codes 97, then 23, then 0d, then finally landing on 15 for a few cycles.

After some googling, I saw that seating RAM was my first easy fix. I popped both modules, and swapped their places. Boot looped to train, and booted into Safe mode. My modules seem to not like XMP 3600 anymore? I targeted next speed down and have no issues now. FWIW

Overclock.net

overclock.net › home › forums › intel › intel motherboards

Asus Maximus Hero VI Freezes on Code "15" | Overclock.net

If it boots up outside the case you know it's a grounding issue so make sure you are using all your standoffs and nothing is interfering with it. ... Code 15 means IMC halted before DRAM training even started.

Asus

rog-forum.asus.com › t5 › amd-600-series › error-code-15-not-booting › td-p › 939812

Error code 15 not booting - Republic of Gamers Forum - 939812

June 29, 2023 - Ok, thanks. The system may take a short time to initialise / complete POST, including power cycles so ensure to give it sufficient time to complete. If the system is indefinitely stuck on Q-Code 15 or shuts down unexpectedly

Overclock.net

overclock.net › home › forums › amd › amd motherboards

Asus X670-E-E Corsair Vengeance 64GB (2x32GB) boot code 15 issue | Overclock.net

I have the latest bios and code 15 in the manual indicates a memory issue with my Corsair Vengeance 64GB (2x32GB), but I've thoroughly tested them with prime 95 and gaming using Cyberpunk, everything seems fine.

Asus

rog-forum.asus.com › t5 › hardware-build-advice › q-code-15 › td-p › 1022326

Q-Code 15 - Republic of Gamers Forum - 1022326

June 9, 2024 - Q-Code 15 listed on the LED of the system board is Pre-memory System Agent initialization is started. The system board is checking the newly installed memory before it posts. Once the Pre-memory System Agent initialization is started checks ...

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Linus Tech Tips

linustechtips.com › the workbench › troubleshooting

Error 14/15 asus board. - Troubleshooting - Linus Tech Tips

November 2, 2024 - My PC has been having issues booting, with error 15, turning in to 14 then eventually the little circle loading appears and after about 5 min i get BSOD that says "inaccesible boot drive", i can get around this only one way, CMOS reset and setting up bios again, exiting out and going through anot...

Asus

rog-forum.asus.com › t5 › other-motherboards › asus-maximus-7-formula-no-post-no-beep-error-15-help › td-p › 590880

Asus maximus 7 formula no post no beep error 15?? ... - Republic of Gamers Forum - 590880

March 6, 2024 - Code 15 is not a very common code, it could be your cpu too but the fact it boots sometimes tells me the cpu is ok. Focus on updating the bios and let us know if that gets you going. ... ASUS MAXIMUS VI FORMULA - Intel® Core™ i7-4790K Installation Question in Other Motherboards 11-04-2025

Asus

rog-forum.asus.com › t5 › hardware-build-advice › code-15-c5-boot › td-p › 1085892

Solved: Code 15/C5 boot - Republic of Gamers Forum - 1085892

April 8, 2025 - ... Try clearing CMOS and re-flashing BIOS; may resolve the issue. BIOS update was interrupted, possibly causing a bricked motherboard. The 15 and C5 error codes often indicate hardware initialization or memory issues.

reddit.com › r/amdhelp › error code 15 and long boot time

r/AMDHelp on Reddit: Error Code 15 and Long Boot Time

May 17, 2024 -

Hello! Quickly before I describe the issue my specs are below:

Motherboard - Asus B650E-E wifi

CPU - Ryzen 7 7800 X3D

GPU - Asus Rog Strix 4080 Super OC 16g

Ram - G Skill Trident Z5 Neo 64gb DDR5

The issue I am experiencing is long boot times but before it boots, I am receiving error code 15 on my mother board’s error code indicator. I have tried reseating the ram, tested another set of ram from Corsair, updated my bios and cleared the CMOS. I am not sure why my computer is taking so long to post. If someone can help me with a solution would be much appreciated!

Top answer

1 of 15

It's currently doing memory training. You can make it skip this by enabling Memory Context Restore in bios.

2 of 15

I had this randomly today on my MSI Carbon 870E WiFi. I came home from work, turned PC on and it did memory training. I didn't do anything hardware wise the day before, I don't understand it, Should I be concerned?

Asus

rog-forum.asus.com › t5 › hardware-build-advice › q-code-15-won-t-go-away › m-p › 1103654

Solved: Re: Q code 15 won't go away - Republic of Gamers Forum - 1103647

June 22, 2025 - Hello AndrewJ81 Code 15 = Memory training and can take a while to complete. It looked like your motherboard shut down at the end, this is probably due to no cpu cooler installed. Try again with your cpu cooler installed.

Asus

rog-forum.asus.com › t5 › other-motherboards › computer-turns-on-and-gets-to-q-code-15-before-restarting › td-p › 557359

Computer turns on and gets to Q Code 15 before res... - Republic of Gamers Forum - 557359

March 6, 2024 - It goes from code 00->13->15 at which point it will turn off and restart. During this time the CPU led does light up briefly and is red. I'm hoping this is not a motherboard issue as this motherboard has given me nothing but problems since I got it and this current one is my 4th replacement.

Tom's Hardware Forum

forums.tomshardware.com › home › systems

Question - Asus board, qcode 15 orange Qled. inaccesible bootdrive. | Tom's Hardware Forum

October 29, 2024 - Hi, i've been having issues recently with my PC, on boot it instantly goes to code 15 orange, for about 2 min it will sit there until it eventually loads into a BSOD with "inaccesible boot drive". the only work around is to reset CMOS, set up bios and exit out, it will then boot, into a rather...

Asus

rog-forum.asus.com › t5 › other-motherboards › rog-trix-b650e-e-error-code-15 › td-p › 974659

RoG Trix B650e-e Error Code 15 - Republic of Gamers Forum - 974659

November 29, 2023 - Hey guys I have a Strix 4090 7800x3d RoG Strix B650 e-e Mobo. New build been playing just 3 days. I was playing WoW two different times the screen just goes black the monitor senses no picture and computer restarts Error code 15 on mobo with flashing orange light.

ASUS

asus.com › support › faq › 1043948

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

ASUS Support-Center to download user manual to check if your model supports ASUS Q-CODE ... 1) Input the model name of the motherboard (Ex: ROG CROSSHAIR VII HERO), then choose the model name in the pull-down list, as shown below:

Asus

rog-forum.asus.com › t5 › amd-600-series › x670e-e-qcode-15 › td-p › 919821

X670e-e QCode-15 - Republic of Gamers Forum - 919821

April 16, 2023 - Yes it's normal, Q-Code 15 is your system performing Pre-memory System Agent initialization.

reddit.com › r/amdhelp › been trying to fix this pc getting stuck on error code 15 for days (more information in replies)

r/AMDHelp on Reddit: Been trying to fix this PC getting stuck on error code 15 for days (more information in replies)

October 15, 2024 - Its memory training … mine needed 35 mins, then looped a bit boot … for 5 boots stopped at 15 … stayed there for 10-15 mins and jumped to bios … rebooted, got stuck again … intermittently other error codes requiring a stop … but then running perfectly fine. I have 4 ram … not really recommended I know … but get it going! ... Gave it a go, each individual memory module has the same boot code pattern happening. I'd find it crazy if 4 RAM modules randomly died, versus the motherboard itself bricking perhaps?