ASROCK B450M-HDV-R4 Black Screen
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=13500
Printed Date: 12 Jul 2025 at 2:39pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: ASROCK B450M-HDV-R4 Black Screen
Posted By: rakidis16
Subject: ASROCK B450M-HDV-R4 Black Screen
Date Posted: 24 Jan 2020 at 4:27am
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Hi, I have a ASROCK B450M-HDV-R4 motherboard with Ryzen7 2700x ,Gigabyte Radeon Rx 590, Intel 660p, ADATA XPG GAMMIX D30 16GB and Aerocool KCAS 600W. After I got my setup connected, I plugging my hdmi to rx 590's output and it was all fine. But before I installed any OS, I was looking around in the bios menu out of curiosity. I turned CSM mode to enable from the boot menu because I thought it will make it easier to install windows on my ssd, but after I changed that setting my hdmi display never came back ON. I tried everything I could think of, I changed csm mode back to disable through the keyboard shortcuts, I performed cmos reset by taking out the cmos battery and discharging through pressing power button. I put jumper on CLRCMOS1 and took out battery at the same time, let it stay like that 20 minutes. But the result did not change. still black screen when I power up. Both the fans of the gpu and cpu work, my connected mouse/keyboard doesnt light up. Sorry if I left some part out, I am pretty frustrated because of trying to boot this new pc up for two days. Regards, Kadir |
Replies:
Posted By: Xaltar
Date Posted: 24 Jan 2020 at 10:39pm
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Try pulling the GPU out and clearing CMOS before putting it back in again. Also try a different display output and cable if you can. ------------- 
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Posted By: rakidis16
Date Posted: 25 Jan 2020 at 12:54am
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Unfortunately that didnt work either. I took out the gpu, cleared cmos and then powered up without the gpu, buzzer beeped because there is no graphic manager and then later I put back gpu and powered again, no buzzer, but also no display on monitor still. I tried hdmi-hdmi, dp-dp and dvi-hdmi cables and problem remains. I dont know what else can be done.. :( |
Posted By: rakidis16
Date Posted: 25 Jan 2020 at 1:17am
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I put in all displays at once and kept trying like that, then I got display suddenly. I will install my os now and hopefully never mess around with CSM mode again. |