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X470-F - weird problems during ram load!?!

6kbyte
Level 7
Hey X470-F owners,

after getting some problems with my new rig i was made a few weird observations. my englisch is not the best so i made some videos to show you my issues:

https://www.youtube.com/watch?v=5zdwfbEM0Uk&feature=youtu.be
(you can see that prime95 blender ram load is dropping usb dongle copy speed - 3x intel systems i testet didnt show this issue while doing exact the same test.)

https://www.youtube.com/watch?v=b_1v4Z_Sa2A&feature=youtu.be
(you can see that prime95 blender ram load is dropping sata ssd speed to its half - 3x intel systems i testet didnt show this issue while doing exact the same test.)

https://www.youtube.com/watch?v=omLG_EYhxME&feature=youtu.be
(you can see that prime95 blender ram load is dropping my usb/wlan speed. in the end the usb device got disconnected - i testet 3 different usb wlan a/c dongles, everyone has the same issue no matter on wich port iam connected. 3x intel systems i testet didnt show this issue while doing exact the same test.)

I installed Windows 10 Home three times, all (AMD/ASMedia) drivers installed correctly and problems are not depending on doing (cpu/ram) OC - with BIOS defaults/stock/auto settings i see the same results but i think ram oc making the issus more worse (more slowdowns, frequently usb disconnects).

I testet my ram with MemTest86 (DOS) and TechPowerUp MemTest64 (Windows 10) with 2133MHz AUTO-Settings (1.2v, low Timings) / 3200 CL15-15-15-35 1.35v / 3200 CL14-14-14-34 1.35v / 3466 CL14-14-14-34 1.4V - no problems found! The only thing i see is that 3466Mhz during MemTest64 is causing mouse-slowdowns/sucks and test-window-stucks but no reported errors at all.

Another thing i see is that the asmedia usb chipset had some incompatibilities and some devices are not working properly (specially my wlan dongle). In some games (PUBG/R6S/BF1) i have random mini-micro-stucks during load and i think maybe it has to do with the mentioned problems i posted.

Can you guys achieve the same results by testing your system? Do you have the same problems or any idea why this happens - maybe a bug, maybe the amd architecture? In a german forum some users are reporting the same problems, some not.

My Setup:
ASUS X470-F (BIOS #4024) / Ryzen 2700x / Noctua NH-D15S / G.Skill Trident Z 16GB DDR4-3600 CL15-15-15-35 (3600Mhz doesnt work btw)

Something more/similar to read:
https://www.reddit.com/r/Amd/comments/6q8qv7/update_regarding_my_usb_issues_with_ryzen/
https://www.reddit.com/r/Amd/comments/6m3kt5/if_youre_getting_random_usb_disconnects_on_ryzen/
https://www.kitguru.net/components/motherboard/ryan-martin/asus-rog-strix-x470-f-gaming-motherboard-...
https://www.hardwareluxx.de/community/f326/amd-ryzen-system-usb-und-sata-probleme-bei-anliegender-ra... (GERMAN ONLY)

Regards,

6kbyte
1,171 Views
1 REPLY 1

HiVizMan
Level 40
Thank you for the detailed post. I will try and duplicate and report back in this thread if I have anything similar.
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