After bios update, monitor shows "No signal"
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=13983
Printed Date: 08 Aug 2025 at 6:40pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: After bios update, monitor shows "No signal"
Posted By: Dent Kim
Subject: After bios update, monitor shows "No signal"
Date Posted: 04 Apr 2020 at 1:26pm
Hello from South Korea. Before I introduce my question, I'll show you my spec
ASRock a320m-hdv r4.0
AMD Razen5 3500
Zotac Nvidia 1660 super
Geil 16gb pc4 21330/2666mhz
I brought and got these items 2 days ago and assemble it
Shows no signal on monitor
So I search some webs and know that gail ram and amd motherboard some trouble.
I have another Samsung ram so I changed it and PC turns runs well.
then I tried update motherboard bios(some people said it may help detect gail ram)
I updated it to A320M-HDV R4.0(2.30) and don't remember what it's original version
(sticker placed in MB said p3.70)
after update bios, the monitor shows no signal both samsung and gail ram.
Tried 15minuet put off coin battery / short the reset pins
is there any other methods to reset CMOS bios?
or do I have to send it to manufacture?
I stay here so any realtime responses are very grateful.
Thanks
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Replies:
Posted By: ThreeDee
Date Posted: 04 Apr 2020 at 1:50pm
did you have the power unplugged from the computer and hold in the power button for a few seconds to discharge all residual power from the mobo before pulling the cmos battery and shorting the pins?
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|Ryzen 5 5900|ASRock X570 Taichi-BIOS 4.60|2x16GB HyperX Predator RGB 3200@3600 1:1 IF|ASRock RX 6700XT|2 x PCIe 4.0 M.2 Drives for OS & Games|850 WTT Seasonic 80+ Titanium PSU|Noctua NH-D15|
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Posted By: Dent Kim
Date Posted: 04 Apr 2020 at 2:06pm
I did.
Press it several times AND press it 10 secs
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Posted By: ThreeDee
Date Posted: 04 Apr 2020 at 2:42pm
so you downgraded from 3.70 to 2.30? .. you might need to grab a 2000 series cpu and install it and then reflash bios to 3.70 to be able to use your 3000 series cpu again ..
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|Ryzen 5 5900|ASRock X570 Taichi-BIOS 4.60|2x16GB HyperX Predator RGB 3200@3600 1:1 IF|ASRock RX 6700XT|2 x PCIe 4.0 M.2 Drives for OS & Games|850 WTT Seasonic 80+ Titanium PSU|Noctua NH-D15|
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