Intel Motherboards - z370 ITX/AC M.2 Problems

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z370 ITX/AC M.2 Problems

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=7835
Printed Date: 03 Aug 2025 at 12:35pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: z370 ITX/AC M.2 Problems

Posted By: cid386
Subject: z370 ITX/AC M.2 Problems
Date Posted: 26 Feb 2018 at 2:57pm

" rel="nofollow - Hey guys!

I've been having a strange problem with the z370 ITX board and my M.2 drive. Basically everything usually works fine, however I'll randomly power on the machine and immediately notice a drastically slowed down M.2 drive. This is evident both in boot times and SSD diagnostic tools. The SSD basically will run at 1/100th the speed. I can remedy this by fully powering off the machine and powering back on.

Any idea what could be causing this? I was thinking it may be a weak PSU (450W) but I don't know if that makes much sense.

Specs below:

CPU: I5 8600k (overclocked to 4.2)

SSD: Samsung 960 EVO M.2

RAM: CORSAIR DDR4 M VENGEANCE LPX DDR4-3000

GPU: Nvidia GTX 1080

PSU: ST45SF ??G