X470D4U2-2T no POST after BIOS update
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=113489
Printed Date: 11 Apr 2026 at 7:32pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: X470D4U2-2T no POST after BIOS update
Posted By: af1233
Subject: X470D4U2-2T no POST after BIOS update
Date Posted: 11 Apr 2026 at 1:40pm
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I have a problem with my X470D4U2-2T Server motherboard. I was trying to install a Windows Server 2022 but it kept restarting when windows server setup was initializing. I thought a new bios update would fix it, as google AI was telling me, so I installed the latest BIOS, version 4.10 . Completed successfully, it asked for a restart but after that server never started again. Dr. debugger screen doesn't even light up to show an error code. I thought connecting to IPMI would be an option, even though i never used it before so I also tried connecting all the network ports to my router, but no new network device shows up in the list. BMC version is F/W P1.70.00 (never updated) , original BIOS was P3.30 (now should be 4.10). What can I do to fix this? The AI is suggesting me to buy a CH341A USB Programmer, remove the bios chip and flash it. Is this the only option? |
Replies:
Posted By: Xaltar
Date Posted: 11 Apr 2026 at 2:57pm
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Try following the instructions https://forum.asrock.com/forum_posts.asp?TID=630&title=how-to-clear-cmos-via-battery-removal" rel="nofollow - here . That should flush any corrupt values from your BIOS. Once you power the system back on again, leave it powered on for at least 10mins to rule out any pre-POST initialization that may be taking a while on first boot on the updated BIOS. If all that fails then open a support ticket with ASRock Rack: https://event.asrockrack.com/tsd.asp ------------- 
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Posted By: Xaltar
Date Posted: 11 Apr 2026 at 3:52pm
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There is also a handy BMC (IPMI) https://download.asrock.com/Manual/BMC/X470D4U2-2T.pdf" rel="nofollow - user guide on your product page. It should have all you need to log in and troubleshoot. Page 61 (64 in the PDF) is probably what will be most useful to you if the steps I listed didn't resolve the issue. Good luck. -------------
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Posted By: af1233
Date Posted: 11 Apr 2026 at 6:39pm
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I removed power and battery yesterday and waited at least 12 hours before powering on, with no success. Today I followed the instructions in the topic you posted and now i'm waiting for those 4 hours to expire. However, the motherboard doesn't have a CMOS jumper, just 2 metal contacts. I made connection between them with a wire for around 20 seconds before removing the battery. About the IPMI, I never used it before and I don't know if it is even active. I connected the motherboard to my router and no device shows up. (i tried all 3 network ports) Is there any way to connect to it? |