https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Wed, 10 Jun 2026 13:46:11 +0000 Mon, 25 May 2026 22:59:19 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=113496 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201551&title=x870e-nova-d4-on-restart-cold-boot#201551 Author: Xaltar
Subject: 113496
Posted: 25 May 2026 at 10:59pm

Looking forward to reading through your findings. Thanks for taking the time to
do this, it has been quite the journey ]]> Mon, 25 May 2026 22:59:19 +0000 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201551&title=x870e-nova-d4-on-restart-cold-boot#201551 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201550&title=x870e-nova-d4-on-restart-cold-boot#201550 Author: dom0xDee4
Subject: 113496
Posted: 25 May 2026 at 7:46pm

Hello, i have a summary of the tests done so far, with configuration, very detailed notes on actual BIOS settings - tracked via custom bitfield - i am working on a document which sums that all up, so it's clear and relatively easy to go over - won't post another before i wrap that.

In the meantime, i have to correct a mistake - Kingston kit i have is NOT on QVL list. Still, as you will see later, that didn't matter much.

I have bought kit of 2 DIMM's, which i asked about in previous message. It is Sk Hynix kit "greenies" if you will - and lo and behold, Reset CMOS, unplug the thing, remove Kingston, install Hynix - all default settings - same story as with Kingston - fairly long training followed by 4D. Press Reset button - booted to Windows (just a small hint before i post complete writeup - this was always the case, Reset button to the Rescue :) )

I can't draw conclusions, but system throws intermittent 4d error - and anything i did related to power and some sort of timeout made it occur sporadically at best.
When it showed up on debug screen - it would be mitigated by Reset button.

Once up and running, memory speed, timing and voltage becomes irrelevant - i've ran many hours of stress tests, large file copy operations (internal drives / USB), nothing really crashed it (memory at 4800, 5600 or even 6000 fwiw...).

Anyway, one more thing i have not tested is removing Gen5 (Windows boot) drive which is on CPU gen5 interface and using Chipset m2 slots, testing both with my Gen5 drive and other drive.

Finally, i'll most likely get another mainboard - i have been pondering of getting another CPU, but in order to keep test conditions somewhat similar and not introduce another variable - i can't go for cheap 8xxx or lower-tier 7xxx CPU - it would have to really be 12 or 16 core, ideally Zen5 too, which is much more expensive then getting a mainboard, which i can get on much lower budget.

Yes, i am mad enough to drive this all the way to finish line :D

Small pic, not too relevant but for the record: Kingston kit i hold in my hand (in box, not original), SK Hynix greenies installed in background, and an ol' buddy on debug screen:
]]> Mon, 25 May 2026 19:46:00 +0000 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201550&title=x870e-nova-d4-on-restart-cold-boot#201550 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201460&title=x870e-nova-d4-on-restart-cold-boot#201460 Author: Xaltar
Subject: 113496
Posted: 14 May 2026 at 8:08pm

It means verified with 2 modules, 2/4 means verified with 2 and 4 modules ]]> Thu, 14 May 2026 20:08:07 +0000 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201460&title=x870e-nova-d4-on-restart-cold-boot#201460 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201459&title=x870e-nova-d4-on-restart-cold-boot#201459 Author: dom0xDee4
Subject: 113496
Posted: 14 May 2026 at 7:40pm

Hello,

i have much more info - but without the noise - doing alot of structured testing since Monday.

In the meantime, i wonder about Memory QVL list how to read it.

For example, green line here shows "Dimm socket support" "2":

Would this mean two such modules would not work, aka one in socket 2, another in socket 4?

Or is this just result of such dimm being tested only in socket 2?

]]> Thu, 14 May 2026 19:40:47 +0000 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201459&title=x870e-nova-d4-on-restart-cold-boot#201459 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201436&title=x870e-nova-d4-on-restart-cold-boot#201436 Author: Xaltar
Subject: 113496
Posted: 11 May 2026 at 4:38am

That is interesting, so some part of the POST process is needing a bit more time.
Now the question is, why? Is it training related? Voltage droop that needs the
system to "warm up" a bit longer? etc.

ASRock TSD has been made aware of this thread and is following along ]]> Mon, 11 May 2026 04:38:50 +0000 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201436&title=x870e-nova-d4-on-restart-cold-boot#201436 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201435&title=x870e-nova-d4-on-restart-cold-boot#201435 Author: dom0xDee4
Subject: 113496
Posted: 11 May 2026 at 4:27am

OK so quite promising result so far, resuming testing:

- Used Setup timeout delay = 30 sec
- Fastboot = disabled (since it ignores setup timeout, as described above)

Since doing it, haven't had a single 4d error, in any of test cases.




I will check it with that FAN that was making the situation earlier much worse.


Before (can't pinpoint exactly when in past weeks) - i have also altered setup timeout from default "1s" to "0s", with / without Fastboot - for what i see now - it likely made everything worse.


Also have tried Fastboot = disabled many times, but without setup delay it just doesn't work, and clearly default 1s ain't cutting it - needs more.

If this proves to be water-tight theory, is there a way to reach asrock engineering team and point them to info over here, other then usual support tickets?

Also, 30sec delay is small price to pay tbh.

To conclude, i'll keep posting info here - few questions from above (particularly code 15) still stand.
Issue to me on surface level and from programming background, almost smells like some race condition, even if i wouldn't assume this UEFI thing is running multithreaded - but something alike - perhaps various secondary Nuvoton, Dr.Mos and similar controllers sometimes don't have enough time to do "proper" init, leading to unexpected errors.. Just thinking out loud wild guess which may be off target alot :)

]]> Mon, 11 May 2026 04:27:01 +0000 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201435&title=x870e-nova-d4-on-restart-cold-boot#201435 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201421&title=x870e-nova-d4-on-restart-cold-boot#201421 Author: dom0xDee4
Subject: 113496
Posted: 09 May 2026 at 7:15am

EDIT: That is the case - Fast Boot ignores "Setup timeout delay".

Question 2. Over the interwebs, Code 15 = Memory training. Is there more to it? Since enabling the Setup timeout option and disabling FastBoot - as you've seen in previous message, code 15 is shown for as long as the delay set in BIOS.]]> Sat, 09 May 2026 07:15:17 +0000 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201421&title=x870e-nova-d4-on-restart-cold-boot#201421 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201420&title=x870e-nova-d4-on-restart-cold-boot#201420 Author: dom0xDee4
Subject: 113496
Posted: 09 May 2026 at 4:50am

Hello there, i'm doing more testing - i'm convinced it is some sort of electrical glitch - i'll post more when i assemble the data.

Just a quick one: In the meantime, i have reverted to NOT using "Deep sleep". I am using "USB Power while off" "Enabled" - this also decreased occurence alot.

Corsair PSU seemed to have firmware update (when i ran iCue software, it showed it being updated, but not sure what was there previously, only could find older firmware in their changelog).

I have also toggled Corsair PSU setting to "single rail OCP" instead of "Multi" - but TBH i seriously doubt that was the issue.

It's a HX1200i in case i haven't mentioned before.

I have also tried grounding cable, in fact it's still in there - proper, thick ground cable, no resistance and no voltage drop - i can't say there is a change in error occurence.

With error generally i have found pressing RESET key will make system go past it - past few days i have never ever done hard shutdown -> power on on 4d, just "RESET".

Roughly 50% of attempts it goes thru on 1st attempt, rest i need to press RESET once more.
Only once it got thru only on 3rd reset.

I have since tired changing RAM settings, it really makes no observable difference (still running it at 6000 MT/s, 32/38/38/38 @1.35V (this kit is rated for 5600 @ 1.25V, 40/40/40/40). Ran 5hr session of y-cruncher today. Also done PassMark memorytest the other day, pass.

There are few more things for me to try:
- i have never removed the main system NVME PCI-e Gen5 drive - plan is to image disk to Gen4 drive and have system boot via one of Chipset ports.

- also, i will try connecting CPU1 and CPU2 fans to connectors on board bottom

- repeat tests with that fast DC-fan plugged in W_PUMP header (as removing it is by the thing that had serious impact on getting rid of the error).


For the end, here is a feedback that looks like a bug, or one setting in BIOS overriding the other (but is not documented in manual):

Today idea came to my mind - utilizing BIOS Setup timeout, in order to see would that allow electrical shenanigans to settle down.

Step1 Enter UEFI, Setup Timeout set to 15 sec.
Step2 Save and exit
Step3 Observe Dr.Debug codes..usual stuff..until, surprise 15 (is it memory training code??)
Step4 Monitor turns on, showing grey line, then quickly after Phantom gaming full screen logo, with Function key shortcuts to enter BIOS Setup or Choose boot device. 15 code still on debug. (this same screen is what you see when you encounter 4d, but pc is not responsive at that point).
Step5 Windows boots (later verified 15 sec timeout is correctly parsed.
Step6 Use Restart to UEFI by AsRock.
Step7 Changed Setup timeout to 120 seconds. (This value can go beyond 1000 seconds, also undocumented in BIOS guide.
Step8 Save and exit
Step9 Observe Dr.Debug codes..usual stuff..until, again 15
Step10 Monitor turns on, showing grey line, then quickly after Phantom gaming full screen logo, with Function key shortcuts to enter BIOS Setup or Choose boot device. 15 code still on debug - and preset for whole 120 seconds
Step11 Windows boots (120 sec timeout is correctly parsed.)
Step12 Restart PC from Windows OS.
Step13 Windows boots very fast - setup timeout delay clearly NOT being used at all here (footnote *1)
Step14 Use Restart to UEFI by AsRock.
Step15 Setup Timeout set to 30 sec.
Step16 Save and exit
Step17 Observe Dr.Debug codes..usual stuff..until, again 15
Step18 Monitor turns on, showing grey line, then quickly after Phantom gaming full screen logo, with Function key shortcuts to enter BIOS Setup or Choose boot device. 15 code still on debug - and preset for whole 30 seconds
Step19 Windows boots (30 sec timeout is correctly parsed.)
Step20 Restart PC from Windows OS.
Step21 Windows boots very fast - setup timeout delay clearly NOT being used at all here (footnote *1)
Step22 Shutdonw PC from Windows OS. (S5 state)
Step23 Power ON pc.
Step24 Observe Dr.Debug codes..usual stuff..(no code 15, MCR, fast boot,training runtime reduction, robust training etc all on..)
Step25 Monitor turns on, immediately Phantom gaming full screen logo, and windows starts to boot - 30 sec timeout NOT used.
Step26 Windows boots (30 sec timeout delay clearly NOT being used)


footnote 1* - Windows OS "Fast boot" setting is NOT active and never was.

Question: is this setup timeout overriden by FastBoot setting perhaps or is it a bug in bios ignoring it / some other setting overriding it? (Will test it myself, but not ready yet - all changes have to go thru some test time).

Test results of today.. RAM touched on 50°C but don't think it is settings, rather an ambient in the room was 26°C at the time of testing.
]]> Sat, 09 May 2026 04:50:46 +0000 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201420&title=x870e-nova-d4-on-restart-cold-boot#201420 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201378&title=x870e-nova-d4-on-restart-cold-boot#201378 Author: Xaltar
Subject: 113496
Posted: 05 May 2026 at 6:22am

This is brilliant info, thanks dom0xDee4. Hopefully ASRock will see this and get
something useful from it.

To answer your questions:
Yes, 3A is per header as far as I know.
Grounding isn't critical but certainly doesn't hurt, particularly if you are experiencing
electrical interference for some reason. Adding a grounding wire on a spade connector
between the board and the case (being careful not to short anything around the
mounting hole/ground plane) might be worth giving a shot. I would also ground
the PSU casing to the PC case, that one is easy and safe to do.

I am not sure if it will help but given your suspicion of some kind of power issue
it's worth a shot. It may also be worth trying another PSU, just incase you have
some ripple happening that isn't easy to measure with a regular multimeter. You
typically need an oscilloscope to measure the ripple on power rails.
]]> Tue, 05 May 2026 06:22:46 +0000 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201378&title=x870e-nova-d4-on-restart-cold-boot#201378 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201376&title=x870e-nova-d4-on-restart-cold-boot#201376 Author: dom0xDee4
Subject: 113496
Posted: 05 May 2026 at 6:07am

EDIT: Forgotten one thing. I installed ASRBGLED utility (ASRock), and it updated "firmware" of something, didn't manage to capture screen of that sadly.]]> Tue, 05 May 2026 06:07:17 +0000 https://forum.asrock.com/forum_posts.asp?TID=113496&PID=201376&title=x870e-nova-d4-on-restart-cold-boot#201376