X870E ROG STRIX - E: Wierd Hitching, DPC Latency and Sound cutoffs.

[nesretto]

Hello!
So I've recently switched over to AMD from Intel 14900k.

NEW Parts:
MOBO: X870E ROG STRIX - E
CPU: AMD 9950X3D
RAM: G.Skill Trident Z5 NEO 6000 CL30, 64GB (F5-6000J3040G32GX2-TZ5NR)
GPU: MSI RTX 4080 Gaming X Trio (From previous build)

After waiting for the Code 15 memory without interrupting it, it landed me on QCODE "D6" after waiting for a few minutes i tried to boot a second time and this time it booted right up. I've found out later this might be an issue with the G Sync display I was using at the time. If i flash BIOS and try with this display it always gives me D6 at first. With my second monitor there is no such issues. Anyways... The computer is working great, all benchmarks are where they should be. no crashes or nothing like that. I've also updated to the newest bios everytime they are available. But im having one annoying issue, that i cannot figure out.

ISSUE:
Everytime I first boot into windows the computer will freeze for like 1, 2 seconds and then recover. the mouse and everything will freeze. This happens if i login and wait for certain programs to launch or i can 100% force it to happen by opening Display Settings right after login. If i do this, then none of the problems will cause this hitch on start up. If the display turns off or computer goes to sleep it will happen again when lauching certain programs like Spotify or Fan Control. (I think this has to do with certain UI elements) Also when this happens it will cause massive DPC spikes and audio cut offs. My friends on Discord have noticed my Shure SM7B connected via Wave XLR will actually distort when this happens. (It will happen even without this device connected). This was not happening on my previous intel build, with the same monitors, same gpu, same displayport cables. But the only way to fix it on this computer is to run HDMI. If im connecting HDMI be it through GPU, Internal Graphics the issue is completly resolved. The only way to fix this issue on DisplayPort is to use:

Custom Resolution Utility and Scaled Resolution Editor by ToastyX and delete all the unused resolutions.
If I do this, then the issue will be completly gone. But i'm still left wondering why this is an issue on this AMD build. When it was completly fine on my Intel. I first thought it was related to the recent NVIDIA driver issues but even reverting back to the oldest drivers for my GPU will not fix the issue.

What ive tried:

1. All sorts of Nvidia Drivers.
2. Windows 11, Windows 10 multiple fresh installs.
3. Multiple Chipset drivers.
4. Disabling all features not in use (Wifi, USB4, LAN, Bluetooth etc
5. Disabling all power saving features in bios and windows.
6. Multiple displays and displayport cable combinations.
7. Different RAM.
8. Different GPU (GTX 1060)
9. DIfferent PSU with both the corsair 12VHPPWR cable or the 3x-4x PCIE with NVIDIA adapter.
10. Reseating all power connectors on MOBO and PSU.
11. Disconnecting all USB devices, using different keyboard / mouse.
12. Only using 1 display with a fresh windows install inbetween. tried both displays with different display cables doing this.
13. Disabling EXPO
14. No PBO / Undervolt.

The only way to not have this hitching is:
Safe Mode where NVIDIA Driver is not present.
HDMI Cable either via GPU or internal graphics.

At this point I'm completly lost. I should not have to disable all possible resolutions on my displays.. We are talking about a Ryzen 9 9950X3D so how its hitching because it has to load some resolutions is after boot is beyond me.. At this point im just wondering if there is anyone else out there having these issues, or if im alone.

I really don't want to fork out for a new mobo and have the same issue be present. I would also think that if this was a HW issue then it would cause some sort of BSOD or hard freezes. Computer is "stable", even left it over night doing Aida64. 

Sorry for the rant post, any ideas would be greatly appreciated! 🙂

[Mr_Savy]

I share the following in the hopes it may lead you to a solution.  It isn't your situation but maybe it could help.  I posted this on the Bios 1512 thread.  I am currently very stable using Bios 1605. Everything up-to-date and using AMD's latest chipset driver for the x870e-e.  Here goes...  If this doesn't help, forget I posted this 🙂 

"I share the following for the subset of the community that may have a setup like mine. My setup is the x870e-e, 9800x3d, 4 sticks of 16GB Corsair Dominator Platinum (6000MHz), RTX 5080, and a Samsung 49" Neo G9 LS49AG952NNXZA.  Chipset driver is the latest on the AMD site. 

Since I got this board, I’ve had many issues with the process of updating the bios.  In short, often I could not get into the bios even after 5 or so attempts using the typical tricks.  This was something I had never experienced with past Asus boards.  (I wondered if this issue was due to this model board, bad board, bad bios update, my memory, etc.)  My ultimate solution was to shutdown, unplug for at least 10 minutes, and then I could get the bios menu.  For all my past Asus boards (about 5-6), I always used EZ Flash to update the bios.  For this board, I upgraded the bios 5 times. One time after selecting EZ Flash, the process bar just zipped to completion but obviously the bios never updated.  In the end, I found the answer to this strange bios issue.

One time after an unsuccessful boot, I got a Q-Code relating to my GPU.  Upon researching possible solutions to this Q-Code, I found comments about compatibility between monitor and GPU.  The cable I had been using was a Club3D DisplayPort 1.4 VESA Certified cable which was certainly fine when my setup had 3x 2550x1440 monitors connected to a RTX 4070 Ti Super OC.  The 5080 has 2.1 DisplayPorts.  Decided to replace this cable with a Silkland 80Gbps 2.1 DisplayPort Cable VESA Certified.  Before restarting and trying to get into the bios, I also turned off Adaptive Sync on the monitor and dialed down the refresh rate to 60Hz instead of 120Hz.   I was pleasantly surprised I had no issues getting into the bios (as it should be). Went back into Windows and set monitor back to 120Hz and turned on Adaptive Sync with no issues playing games and other activities over the day.  I am not sure if I needed to do all three but I feel I have a solution whenever I need to get into the bios.

Separately, I researched the recommended way to update the bios which is to use the Bios Flashback feature.  There is a specific process for using this procedure.  Successfully updated to 1512 from 1401.  Back in the bios my previous stable frequency for this memory was 5400MHz.  Changed to 5800MHz.  I entered my CPU overclock (PBO) settings.  Ran Memtest86 using 8 passes with no errors.  At this point, 1512 has been very stable.  So far setting the memory frequency to 6000MHz is unstable.  An AI search asking how I could get a stable 6000MHz provided the following which I think could be useful but haven’t yet executed. (See below)"

[nesretto]

I actually ordered a certified 2.1 display port just to test it out, as both my display cables are old and I do not know what version or quality they are. This gives me some hope, I just haven’t had a display port cause hitching before, flickering sure.. il report back ones I get the new display port cables.

[nemen]

definitely invest in new cables