Intel Motherboards - Z170M Pro4S No Post

Z170M Pro4S No Post

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=2012
Printed Date: 21 Jul 2025 at 8:47am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Z170M Pro4S No Post

Posted By: curtrobinson
Subject: Z170M Pro4S No Post
Date Posted: 16 Feb 2016 at 3:17am

HELP!!

Brand new system. Nothing hooked up except power, installed CPU. If no memory, I get 3 long beeps. The CPU and system fans turn on. If I install memory, slots A2 & B2 or slots A1 & B1, I get no POST or anything. The CPU fans turn on, along with the power light, but nothing else. Nothing on DVI video.

Hooked up a case speaker to hear any beeps.

I've been building computers for 22-years, so not new at this, just not sure how to troubleshoot beyond where I am now.

Next troubleshooting steps?

Bare Config:

ASRock Z170M Pro4s

Intel i3-6100 3.7GHz LGA1151

PNY DDR4 2x8GB 2133MHz 1.2v

EVGA 500W Power

SilverStone Case

Other Memory Tried:

Kingston HyperX Fury HX421C14FB/8 (in A2 and A1), same result.

Replies:

Posted By: Soft Brick
Date Posted: 16 Feb 2016 at 4:46am

I would suggest inspecting CPU socket for bent pins. Maybe you are using an aftermarket cooler? Overtightening those, in exremely rare cases, are known to bent/warp skylake cpus or damage socket.

Have you tried using only one Ram slot?
You are using iGPU? Maybe try dedicated GPU or vice-versa if possible.

You could also try Clearing CMOS.

Posted By: Claf1109
Date Posted: 04 Mar 2016 at 5:02am

I've had a few issues with ram on my Z170M Pro4S

It seemed to struggle with XMP Profiles and wouldn't post with more than 1 DIMM with default settings.

Then, i've had to set the ram settings manually into the bios to make it work. I Think it's related to the low (and unchangeable) VCCIO

Posted By: curtrobinson
Date Posted: 04 Mar 2016 at 5:06am

Hi All,

Thanks for the reply. The tech from ASRock pointed me towards memory configurations, but after trying a few different combinations and brands, a new tech pointed me towards the CPU socket. Sure enough, there were a few bent pins on the CPU socket. Swapped the motherboad out, thanks Amazon, and the new one worked flawlessly. Not sure if I caused the issue or not, but when I build my next one, I'll check it out first!

Thanks!