Intel Motherboards - Z170M Pro4S Stuck in boot, USB Ports not working

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Z170M Pro4S Stuck in boot, USB Ports not working

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=8881
Printed Date: 10 Aug 2025 at 3:12pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Z170M Pro4S Stuck in boot, USB Ports not working

Posted By: orsauce
Subject: Z170M Pro4S Stuck in boot, USB Ports not working
Date Posted: 08 Jun 2018 at 8:40am

" rel="nofollow - Hi all,

I am having difficulty with my PC. I have windows 10 installed, ASRock Z170M Pro4S MoBo, Pentium G4400, 256gb SSD drive, Geforce 750Ti, and 16gb ram.

Issue is my mobo wont read any of my USB ports during boot (i tried all 8 ports), so i cleared the CMOS as instructed here- http://forum.asrock.com/forum_posts.asp?TID=630&title=how-to-clear-cmos-via-battery-removal .

It still wont read my usb devices, most importantly my keyboard (i confirmed the keyboard is working on other computers). So when I turn it on, on the main ASRock screen I can't press anything, then after a minute it takes me to the "CMOS Date/Time Not Set, Press F2 or DEL to Run Setup, Press F1 to Continue".

Is there anyway to get the USB ports functioning properly again or is this MoBo dead? :(

Thanks for any help.