There is a setting, Memory Context Restore, to save training results and avoid re-training Answer from grv87 on reddit.com
Reddit
reddit.com › r/buildapc › debug code 15 on new build (msi)
r/buildapc on Reddit: Debug Code 15 on New Build (MSI)
November 8, 2022 -
Hello all, I just completed a new build with the following specs:
CPU: AMD 7950x
MOBO: MSI x670e MEG ACE
RAM: Corsair Dominator Platinum 64gb (4x16gb) 6000mhz
GPU: 3090 FE
PSU: Corsair AX1600i
Boot drive is a 1tb Kingston KC3000 m.2; there are several other m2 drives and SATA drives also present
Initial boot was lengthy as anticipated, about 1 minute. However, every time I boot (or try to wake from sleep) I get debug code 15, it hangs on this code for about 30 seconds, then reboots and then boots normally. Overall the PC is working fine, but I've been trying to find a solution to this with no luck. I updated to the most recent BIOS 7D69v125(Beta version) with no change. If anyone has any suggestions I would greatly appreciate it. Thanks in advance.
MSI
forum-en.msi.com › home
Code 15, yellow LED on x870 tomahawk
November 28, 2025 - TPM disappears on first boot after long shutdown - BitLocker recovery + Code 45 + “No TPM device found” in BIOS (Modern 14 H / D13MG) ... I can't increase the voltage of my x670e Tomhawk DDR5 RAM to 1.4V. ... Allows members to download files submitted by Moderators. ... Link to knowledgebase of frequently-asked-questions, please also search or browse here before posting in the forum. Older MSI motherboards, All boards older than listed in Intel and AMD section.
Code 15 and Power Cycle before boot
Hello, I recently built a pc for my girlfriend. Everything went surprisingly well (except a few minor design VS function battles with her). Now that she is actively using her pc I noticed that it took a bit longer to boot than I thought it should and it turns out that it seems to be doing a power... More on linustechtips.com
5
April 8, 2023CODE 15
Problem: Installed all parts, went to boot. Code 15. Updated bios w/qflash. Returned mobo and ram for new. Installed same error. Move ram to slots 1/3 same error. Took ram out get code c5 I ordered the ram on gigabyte memory support. Same errors. I am on 2nd mobo and 3rd set of ram... More on forums.tomshardware.com
7
0
February 1, 2025MSI MAG X870 WiFi stuck on BIOS error code 15: "Pre-memory System Agent initialization is started"
It's going through memory training. Let it be for around 20mins More on reddit.com
10
1
May 25, 2025Do NOT update Bios if MSI motherboard :: Hardware and Operating Systems
0x0129 is the newest Intel code so we'll see how long it takes MSi to include that in an update. I'll be waiting until after the 0129 update is out for a bit before I flash anything. M.S.I. has some motherboards with the relevant 0x129 (not 0x0129) microcode out already. More on steamcommunity.com
Videos
r/computerhelp on Reddit: Code 15 MSI MPG X670E Carbon WiFi
r/PcBuildHelp on Reddit: Code 15 MSI MPG X670E Carbon WiFi
r/AMDHelp on Reddit: Been trying to fix this PC getting stuck on ...
r/AMDHelp on Reddit: Error Code 15 and Long Boot Time
[HELP] MSI MAG X870E Tomahawk Max WiFi PZ stuck on ...
r/pcmasterrace on Reddit: CODE 15 MSI MPG X670E Carbon WiFi
Facebook
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Code 15 error
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Linus Tech Tips
linustechtips.com › the workbench › troubleshooting
Code 15 and Power Cycle before boot - Troubleshooting - Linus Tech Tips
April 8, 2023 - Hello, I recently built a pc for my girlfriend. Everything went surprisingly well (except a few minor design VS function battles with her). Now that she is actively using her pc I noticed that it took a bit longer to boot than I thought it should and it turns out that it seems to be doing a power...
H|ard|Forum
hardforum.com › [h]ard|ware › motherboards
MEG X670E ACE - Code 15 - Delay on Boot | [H]ard|Forum
April 30, 2023 - Click to expand... I have that ACE board. Code 15 is the RAM training. You'll get that on early every boot. My board, paired with my 7950X and a kit of semi-tuned F5-6400J3239G16GX2 RAM tends to take around 20-30 seconds to re-train per boot. There are options to try to reuse last boot's memory ...
MSI
forum-en.msi.com › home
While in Bios EZ debug display code 15 with green boot ...
April 16, 2025 - Older MSI motherboards, All boards older than listed in Intel and AMD section.
Tom's Hardware Forum
forums.tomshardware.com › home › motherboards
Question - CODE 15 | Tom's Hardware Forum
February 1, 2025 - Code 15. https://download.gigabyte.com/FileL...1002_e.pdf?v=59cc1f2d26534159d27e2e7d71214a42 Page 39. ram corsair 64 g Vengeance rg ddr5 Got a link to the ram you're working with? Move ram to slots 1/3 same error. When working with two sticks of ram, they should be populating slots A2 and B2 on the motherboard.
MSI
forum-en.msi.com › home
MAG x870 Tomahawk POST failure - Code 15 despite ...
August 19, 2025 - Older MSI motherboards, All boards older than listed in Intel and AMD section.
XDA Developers
xda-developers.com › home › other hardware › the most commonly seen debug code errors on msi motherboards, and how to fix them
The most commonly seen Debug Code errors on MSI motherboards, and how to fix them
February 23, 2024 - Let's look at some of the most commonly seen debug error codes on MSI motherboards along with some potential ways to fix them.
Reddit
reddit.com › r/buildapc › msi mag x870 wifi stuck on bios error code 15: "pre-memory system agent initialization is started"
r/buildapc on Reddit: MSI MAG X870 WiFi stuck on BIOS error code 15: "Pre-memory System Agent initialization is started"
May 25, 2025 -
I am working on a new build with all new components. On power on, the system runs through a series of codes too fast to read, then restarts, runs throw some more codes, and halts on code 15. According to the manual it is "Pre-memory System Agent initialization is started"
It has been stuck with this error for several hours now.
Ideas\suggestions?
CPU: AMD 9950x
MOBO: MSI MAG x870 WiFi
RAM: 2x 32GB DDR5 Flare G-Skill
GPU: Not Installed yet (RTX 5070)
M.2 Samsung 990 pro 4TB
PSU: Reddragon 850
MSI
forum-en.msi.com › home
x870e Carbon Wifi code 15?
TPM disappears on first boot after ... + Code 45 + “No TPM device found” in BIOS (Modern 14 H / D13MG) ... I can't increase the voltage of my x670e Tomhawk DDR5 RAM to 1.4V. ... Allows members to download files submitted by Moderators. ... Link to knowledgebase of frequently-asked-questions, please also search or browse here before posting in the forum. Older MSI motherboards, All boards ...
MSI
forum-en.msi.com › home
MSI Global English Forum
June 28, 2020 - Older MSI motherboards, All boards older than listed in Intel and AMD section.
MSI
msi.com › support › technical_details › MB_Boot_No_Display
[Motherboard] What to do if there is no power after booting up or no display on the monitor
Troubleshooting Guide: No Power or Display on Monitor After Booting Up. Check power jumper, CPU compatibility, hardware, display screen, EZ Debug LED, perform POST test, discharge CMOS.
MSI
forum-en.msi.com › home
MSI MAG X870 Tomahawk WIFI -- Random Error Code "0d ...
January 29, 2025 - Older MSI motherboards, All boards older than listed in Intel and AMD section.
MSI
forum-en.msi.com › home
MEG X670E ACE - code 15 long boot times
October 6, 2022 - Older MSI motherboards, All boards older than listed in Intel and AMD section.
MSI
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MSI USA
Welcome to the MSI USA website. MSI designs and creates Mainboard, AIO, Graphics card, Notebook, Netbook, Tablet PC, Consumer electronics, Communication, Barebone, Server, industrial computing, Multimedia, Clean Machine and Car Infotainment.
MSI
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MAG X870 Tomahawk Won't Post - Error 15
April 12, 2025 - Older MSI motherboards, All boards older than listed in Intel and AMD section.
Facebook
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4 ways Proxmox turned my old PC into the ultimate home ...
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MSI
account.msi.com › en › services › warranty-book
Welcome to MSI Member Account Login | MSI Member Center
Quickly register/log in as MSI member to access exclusive member features. Register your product for extended warranty and click to join MSI reward member program to earn plenty of points for redeeming fantastic prizes!
Steam Community
steamcommunity.com › discussions › forum › 11 › 4511003785951431531
Do NOT update Bios if MSI motherboard :: Hardware and Operating Systems
August 10, 2024 - MSI just released a new BIOS for motherboards over this 14900K Intel fiasco. Do NOT install it, you will not be able to change any BIOS setting and will be stuck with DDR at 4800mhz speeds and unable to change XMP profile or any setting in BIOS.