ASRock Forums : X370 Killer Sli/ac Won't Post https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sat, 09 May 2026 18:21:24 +0000 Wed, 28 Feb 2018 17:56:27 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=7596 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[X370 Killer Sli/ac Won't Post : I have the same issue, it keep...]]> https://forum.asrock.com/forum_posts.asp?TID=7596&PID=46260&title=x370-killer-sli-ac-wont-post#46260 Author: deskok
Subject: 7596
Posted: 28 Feb 2018 at 5:56pm

I have the same issue, it keep rebooting by itself and flashing of RED LED light after bios upgrade. I don't know what to do now?]]> Wed, 28 Feb 2018 17:56:27 +0000 https://forum.asrock.com/forum_posts.asp?TID=7596&PID=46260&title=x370-killer-sli-ac-wont-post#46260 <![CDATA[X370 Killer Sli/ac Won't Post : Wasn&#039;t a first boot issue....]]> https://forum.asrock.com/forum_posts.asp?TID=7596&PID=44823&title=x370-killer-sli-ac-wont-post#44823 Author: Coltsbro
Subject: 7596
Posted: 08 Feb 2018 at 7:31am

Wasn't a first boot issue. It won't even POST, just 10 second power loops (have let it go for 6-7 times before, no POST). This all worked fine on BIOS version 3.4 and issues started after updating to 4.5 (after update to bridge BIOS 3.5 worked fine). 

I tried hooking in a motherboard speaker to it and had no beeps. I am having a friend test it in his rig to see if it beeps. If it does, I read that the issue is my CPU (this Mobo is a RMA from Asrock that was tested to work). 
]]> Thu, 08 Feb 2018 07:31:03 +0000 https://forum.asrock.com/forum_posts.asp?TID=7596&PID=44823&title=x370-killer-sli-ac-wont-post#44823 <![CDATA[X370 Killer Sli/ac Won't Post : first boot take some time (several...]]> https://forum.asrock.com/forum_posts.asp?TID=7596&PID=44785&title=x370-killer-sli-ac-wont-post#44785 Author: kerberos_20
Subject: 7596
Posted: 07 Feb 2018 at 1:19pm

first boot take some time (several reboots)
in some cases it can take few minutes
maybe record on video what dr debug shows? that could help
]]> Wed, 07 Feb 2018 13:19:49 +0000 https://forum.asrock.com/forum_posts.asp?TID=7596&PID=44785&title=x370-killer-sli-ac-wont-post#44785 <![CDATA[X370 Killer Sli/ac Won't Post : So I&#039;m at a bit of a loss...]]> https://forum.asrock.com/forum_posts.asp?TID=7596&PID=44784&title=x370-killer-sli-ac-wont-post#44784 Author: Coltsbro
Subject: 7596
Posted: 07 Feb 2018 at 10:43am

So I'm at a bit of a loss for what to do here. I had setup my computer last month and everything was working great, I was up and running with BIOS version 3.4. I heard that BIOS 4.5 had come out and tried to update to that. The update to the bridge BIOS went smoothly, everything ran perfect. I then updated to 4.5, and that's where the problems started. I got to the screen where it asked me to restart the computer after BIOS update, hit enter, and then my computer went into an endless power cycle loop without post. I thought that the update had somehow corrupted, so I RMA'd the board and just received the new one. After setting that all up, I get the same symptoms.

I have tried clearing CMOS, I tried removing the ram and booting, I tried removing the GPU and booting, and nothing works. The only thing I can arrive at now is I think somehow something happened to the CPU during the BIOS update, but I'm not sure how that would happen. Here are my specs:

Ryzen 5 1600x
X370 Killer SLI/ac
PNY Anarchy 16GB DDR4 2400
EVGA GTX 1080 FTW2
EVGA Supernova 650W G3

This all worked perfectly fine before that initial update to 4.5. I'm honestly at a loss, and before I start a CPU RMA I would like to see what everyone else thinks.
]]> Wed, 07 Feb 2018 10:43:28 +0000 https://forum.asrock.com/forum_posts.asp?TID=7596&PID=44784&title=x370-killer-sli-ac-wont-post#44784