Intel Motherboards - Z370 Taichi showing error 15 on every cold boot

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Z370 Taichi showing error 15 on every cold boot

Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=14458
Printed Date: 03 Aug 2025 at 12:32pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Z370 Taichi showing error 15 on every cold boot

Posted By: megazz
Subject: Z370 Taichi showing error 15 on every cold boot
Date Posted: 22 May 2020 at 8:20pm

System:

Z370 Taichi on latest BIOS (4.20)
8700K
G.SKILL 16 GB (8x2) 4266MHz F4-4266C19D-16GTZR

Kind of an annoying issue, but pretty much every time I perform a cold boot on my system I get an error 15 code and the system hangs. I then hold the power button for a couple seconds to power it off and then power it on again and then it boots fine. Sometimes this takes more than one try.

I know error 15 is memory related, but this kit F4-4266C19D-16GTZR is listed on the memory QVL list for this motherboard. I already tried lowering the frequency, but it doesn't solve the issue. As it stands I'm using my system just fine with the memory at its rated speed 4266MHz, but I always have that routine to get it running.

Is there something I can do about it? Any help is appreciated.

Replies:

Posted By: RLGL
Date Posted: 23 May 2020 at 9:11pm

Set to defaults, run memtest on each stick

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Asrock Z370 Gaming K6,Intel i7 8700K,
Asrock x570 Taichi