ASRock Forums : x299 Taichi XE won't POST

ASRock Forums : x299 Taichi XE won't POST https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Fri, 10 Apr 2026 14:38:10 +0000 Sun, 27 May 2018 15:04:12 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=6665 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[x299 Taichi XE won't POST : I just remembered that i didnt...]]> https://forum.asrock.com/forum_posts.asp?TID=6665&PID=51985&title=x299-taichi-xe-wont-post#51985 Author: amerz
Subject: 6665
Posted: 27 May 2018 at 3:04pm

I just remembered that i didnt remove the usb2 and usb3 of the front panel, i will try removing them tomorrow.
As for the ups I bought the 1000 w so i dont have problem...
i will give you updates tomorrow.
Thanks for the reply]]> Sun, 27 May 2018 15:04:12 +0000 https://forum.asrock.com/forum_posts.asp?TID=6665&PID=51985&title=x299-taichi-xe-wont-post#51985 <![CDATA[x299 Taichi XE won't POST : C0 refers to boot device selection.C0...]]> https://forum.asrock.com/forum_posts.asp?TID=6665&PID=51984&title=x299-taichi-xe-wont-post#51984 Author: jarm
Subject: 6665
Posted: 27 May 2018 at 2:53pm

[URL=][/URL]C0 refers to boot device selection.

C0 - OEM BDS initialization codes

I understood you tried booting with only one stick of RAM? Have you tried reseating CPU? Also when installing CPU cooler, don't overtighten it. Try booting with only CPU, one stick of RAM and GPU installed. To be sure reconnect all motherboard cables also.

If it still won't boot I think RMA the motherboard.
I replaced both my motherboard and PSU. Replaced Taichi x299 for Taichi x299 XE. PSU was probably the problem. I was confident that it can't be PSU (Seasonic Prime 860W) as it was new and previously working fine. Replaced motherboard and still couldn't boot. After replaced PSU too and this seemed to solve it.

Edited by jarm - 27 May 2018 at 2:55pm]]> Sun, 27 May 2018 14:53:24 +0000 https://forum.asrock.com/forum_posts.asp?TID=6665&PID=51984&title=x299-taichi-xe-wont-post#51984 <![CDATA[x299 Taichi XE won't POST : C0 is refers to boot device selection.C0...]]> https://forum.asrock.com/forum_posts.asp?TID=6665&PID=51982&title=x299-taichi-xe-wont-post#51982 Author: jarm
Subject: 6665
Posted: 27 May 2018 at 2:46pm

C0 is refers to boot device selection.

C0 - OEM BDS initialization codes

I understood you tried booting with only one stick of RAM? Have you tried reseating CPU? Also when installing CPU cooler, don't overtighten it. Try booting with oy CPU, one stick of RAM and GPU installed. To be sure reconnect all motherboard cables also.

If it still won't boot I think RMA the motherboard. I replaced both my motherboard and PSU. Replaced Taichi x299 for Taichi x299 XE. PSU was probably the problem. I was confident that it can't be PSU (Seasonic Prime 860W) as it was new and previously working fine. Replaced motherboard and still couldn't boot. After replaced PSU too and this seemed to solve it.]]> Sun, 27 May 2018 14:46:29 +0000 https://forum.asrock.com/forum_posts.asp?TID=6665&PID=51982&title=x299-taichi-xe-wont-post#51982 <![CDATA[x299 Taichi XE won't POST : Thanks for the reply man!But i...]]> https://forum.asrock.com/forum_posts.asp?TID=6665&PID=51980&title=x299-taichi-xe-wont-post#51980 Author: amerz
Subject: 6665
Posted: 27 May 2018 at 1:34pm

Thanks for the reply man!
But i did try every possible solution, i had it for 3 days
I tried with 1 ram and cpu cooler and vga only...
Same prblom it cant boot

The first day when i had everything on, it gives me C0! And i have gone mad cause there is no such error in the debug, and later days it gives me only A2

I have tried several screen tho and all never had a signal. :(]]> Sun, 27 May 2018 13:34:06 +0000 https://forum.asrock.com/forum_posts.asp?TID=6665&PID=51980&title=x299-taichi-xe-wont-post#51980 <![CDATA[x299 Taichi XE won't POST : Well at least you are getting...]]> https://forum.asrock.com/forum_posts.asp?TID=6665&PID=51966&title=x299-taichi-xe-wont-post#51966 Author: jarm
Subject: 6665
Posted: 27 May 2018 at 3:28am

Well at least you are getting A2. I think Dr Debug is not showing errors specifically, but rather status of boot secuence. If Dr Debug shows A2, it means boot secuence got stuck there.

A0 - IDE initialization is started
A1 - IDE Reset
A2 - IDE Detect
A3 - IDE Enable

I would unplug all attached drives (including usb headers on motherboard), clear CMOS (follow instructions provided in this forum) and try booting. Also check that cables and memory sticks are firmly connected. ]]> Sun, 27 May 2018 03:28:10 +0000 https://forum.asrock.com/forum_posts.asp?TID=6665&PID=51966&title=x299-taichi-xe-wont-post#51966 <![CDATA[x299 Taichi XE won't POST : please can anyone help me,i have...]]> https://forum.asrock.com/forum_posts.asp?TID=6665&PID=51962&title=x299-taichi-xe-wont-post#51962 Author: amerz
Subject: 6665
Posted: 27 May 2018 at 12:50am

please can anyone help me,

i have i7 7820x

4 Hyper X Fury 16 GB DDR4 2400

i tried gtx 580 and gtx 980ti.. same problem

and kingstone SA1000M8 M.2

Aerocool 1000W ups

my board lights is on, but cant boot up. always no signal on screen, and getting A2 error, even if i have no sata instaled..

]]> Sun, 27 May 2018 00:50:37 +0000 https://forum.asrock.com/forum_posts.asp?TID=6665&PID=51962&title=x299-taichi-xe-wont-post#51962 <![CDATA[x299 Taichi XE won't POST : i m having the same problem, my...]]> https://forum.asrock.com/forum_posts.asp?TID=6665&PID=51961&title=x299-taichi-xe-wont-post#51961 Author: amerz
Subject: 6665
Posted: 27 May 2018 at 12:42am

i m having the same problem, my board is giving A2 error, and cant boot up at all...]]> Sun, 27 May 2018 00:42:22 +0000 https://forum.asrock.com/forum_posts.asp?TID=6665&PID=51961&title=x299-taichi-xe-wont-post#51961 <![CDATA[x299 Taichi XE won't POST : Highlighting this thread also....]]> https://forum.asrock.com/forum_posts.asp?TID=6665&PID=46274&title=x299-taichi-xe-wont-post#46274 Author: jarm
Subject: 6665
Posted: 28 Feb 2018 at 10:33pm

Highlighting this thread also. As far as I can tell, it's still unresolved.

AsRock any comments?]]> Wed, 28 Feb 2018 22:33:45 +0000 https://forum.asrock.com/forum_posts.asp?TID=6665&PID=46274&title=x299-taichi-xe-wont-post#46274 <![CDATA[x299 Taichi XE won't POST : How is your system running? I'm...]]> https://forum.asrock.com/forum_posts.asp?TID=6665&PID=42806&title=x299-taichi-xe-wont-post#42806 Author: jarm
Subject: 6665
Posted: 11 Jan 2018 at 5:47pm

How is your system running? I'm having similar issues with my x299 Taichi and 7820x. Opened a new thread for it.

Is your SSD 960 EVO and what firmware? Right now SSD firmware update seems the most likely culprit. I don't update firmware too often. I updated it today and after the update system is not posting. Update itself was successful as no errors were displayed.

Latest firmware for 960 EVO came sometime beginning of November I think.

Edited by jarm - 12 Jan 2018 at 12:13pm]]> Thu, 11 Jan 2018 17:47:23 +0000 https://forum.asrock.com/forum_posts.asp?TID=6665&PID=42806&title=x299-taichi-xe-wont-post#42806 <![CDATA[x299 Taichi XE won't POST : Got a new board.Without CPU installed...]]> https://forum.asrock.com/forum_posts.asp?TID=6665&PID=39719&title=x299-taichi-xe-wont-post#39719 Author: mostly
Subject: 6665
Posted: 23 Nov 2017 at 12:56am

Got a new board.

Without CPU installed it wouldn't power up the Debug display (not surprising). CPU installed and everything went fine. System back in case, all good.

Couple reboots later and it's showing the same problem as the first board... It's managed to restart a few times via power off, CMOS reset and power back on. At the moment it's refusing to reboot, and i'm letting the power drain :-(

So, likely explanation is something in my setup is incompatible. A second faulty board seems unlikely (even if from the same batch). I just don't see what could be doing this, everything is fine if the board would try to POST.

Only additional info, on a couple of occasions after CMOS reset, i'd go into the bios, save and exit, wait for the splash screen to show again then hit the power button to turn everything off. Then the board would stay awake, red led next to the Debug display stays on, until a long power button press.

Not sure that helps any :-(

EDIT: PC is currently running. Only way i can get it to boot is by holding the CMOS reset switch with the power on, while it's 'stuck'. Works maybe 1 in 10 times. This is a full system inside the case.

Edited by mostly - 23 Nov 2017 at 1:24am]]> Thu, 23 Nov 2017 00:56:02 +0000 https://forum.asrock.com/forum_posts.asp?TID=6665&PID=39719&title=x299-taichi-xe-wont-post#39719