Intel Motherboards - Z370 SLI/AC outputting high volts on I7-8700 Non-K

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Z370 SLI/AC outputting high volts on I7-8700 Non-K

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=6874
Printed Date: 01 Aug 2025 at 4:11am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Z370 SLI/AC outputting high volts on I7-8700 Non-K

Posted By: quietstrm07
Subject: Z370 SLI/AC outputting high volts on I7-8700 Non-K
Date Posted: 09 Dec 2017 at 1:05am

I'm not sure if this has to do with XMP settings, but when load testing my new build, I've been experiencing voltages that meet or exceed 1.42V (sometimes hitting 1.449V) on all cores.

My current specs are:

CPU: Intel I7-8700 Non-K

Mobo: Z370 SLI/AC

Cooler: Cyrorig H7

RAM: Corsair Vengeance LPX 16gb DDR4-3200Mhz

I've been running into heat issues primarily on my core temps. Under load, they are typically high 80s under 100% usage or throttling when using Handbrake or Prime95, which may be due to those softwares. This caused me to take a look at my voltages and I noticed they seemed exceedingly high, as even most people only run a 1.4V as max on an overclocked I7-8700K.

In order to maximize my RAM, I enabled XMP setting 1, so I'm not sure what this impact might have had in my CPU voltages. This is my first build, so I apologize if I'm a bit of a newbie when it comes to some of these things. I'm just wanting to ensure that this is either something that is "normal" or has a remedy before I go through the process of RMA'ing either my CPU or mobo.

Any help with this would be greatly appreciated. I'm hoping it's a simple tweak before either spending more on improved cooling or going through the RMA process.