Screen Flashing to black over 29hz
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=9026
Printed Date: 19 Jul 2025 at 8:30am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Screen Flashing to black over 29hz
Posted By: gwilly7
Subject: Screen Flashing to black over 29hz
Date Posted: 27 Jun 2018 at 4:19am
|
" rel="nofollow - I just upgraded my board to a Fatal1ty X470 Gaming-ITX/ac with a Ryzen 2400G. I am running Windows 10 with the newest AMD Chipset and Graphics drivers. I am going through a Dennon X2300w to a Vizio P65-C1. If I set my resolution higher than 3840X2160p @ 29hz my screen will flash black for a few seconds every minute or two. I am on Bios 1.11A I have even tried reinstalling Windows. My previous motherboard did not have issues and ASUS B350M-E and I also have an Asrock J4205-itx connected through the receiver that does 4k@60hz without issue. Any Ideas before I ship it back to Newegg?
|
Replies:
Posted By: kerberos_20
Date Posted: 27 Jun 2018 at 11:01pm
|
add ferrite chokes at each end of the hdmi cable https://en.wikipedia.org/wiki/Ferrite_bead" rel="nofollow - https://en.wikipedia.org/wiki/Ferrite_bead ------------- http://valid.x86.fr/diq4l4" rel="nofollow">  http://www.userbenchmark.com/UserRun/47132492" rel="nofollow - userbenchmark |
Posted By: gwilly7
Date Posted: 27 Jun 2018 at 11:44pm
| Thanks, I will look into this. Tested a little more with Libreelec today and had no issues using 4k@60 resolution, so seems it might just be a Windows issue. I am also going to try and install Ubuntu today to see how that goes. |
Posted By: gwilly7
Date Posted: 28 Jun 2018 at 2:59am
| Running Kubuntu Linux 18.04 from a USB stick for 3 hours now set at 4k@60hz with no issues. Must be some kind of windows driver issue. |
Posted By: gwilly7
Date Posted: 28 Jun 2018 at 11:38pm
| So after more testing, I installed Kubuntu on my M.2 Samsung Evo 960 that Windows was on and ran into problems as well. So it seems to be a problem with the M.2 sata and the board. Seems whatever os is on the M.2 has the issue. I am emailed my results to Support. |
Posted By: kerberos_20
Date Posted: 29 Jun 2018 at 10:29pm
|
every electronic component makes some sort of noise (EMI)  if your current cable acts as antenna, ull get issues, either get some clap-on ferrites/decent high quality cables with ferrites to reduce that noise or dont use that m2 :) ------------- http://valid.x86.fr/diq4l4" rel="nofollow"> http://www.userbenchmark.com/UserRun/47132492" rel="nofollow - userbenchmark |