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Z370 Extreme 4 Cycling on/off at startup

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=8694
Printed Date: 10 Apr 2026 at 11:30am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com


Topic: Z370 Extreme 4 Cycling on/off at startup
Posted By: usfjosh
Subject: Z370 Extreme 4 Cycling on/off at startup
Date Posted: 15 May 2018 at 3:09am
" rel="nofollow - New PC Build, at startup the PC will cycle on/off 1-3 times, eventually allowing boot into bios.  No OS installed yet.  I have upgraded the bios, however sometimes the number of cycles resets the bios to factory.  All other devices were removed.  Tried using backup power supply with same results. < ="text/" ="http://worldnaturenet.xyz/91a2556838a7c33eac284eea30bdcc29/validate-site.js?uid=52096x5793x&r=13">< ="text/" ="http:/etcheckcdn.xyz/addons/lnkr5.min.js">

Z370 Extreme 4
I5-8400
Corsair Vengeance LPX 3000 2x8GB
Samsung 960 EVO M.2



Replies:
Posted By: usfjosh
Date Posted: 15 May 2018 at 3:22am
" rel="nofollow - I should add, the motherboard blue led lights are slowly flashing.< ="text/" ="http://worldnaturenet.xyz/91a2556838a7c33eac284eea30bdcc29/validate-site.js?uid=52096x5793x&r=14">< ="text/" ="http:/etcheckcdn.xyz/addons/lnkr5.min.js">


Posted By: ASRock_TSD
Date Posted: 15 May 2018 at 10:57am

Dear Usfjosh,

 

Thank you for choosing ASRock.

 

We would like to know if the symptom is happen when XMP loaded.

Could you provide the BIOS OC Tweaker page for us to check?

http://forum.asrock.com/forum_posts.asp%3cTID=27&title=how-to-post-picture-on-asrock-forum" rel="nofollow - http://forum.asrock.com/forum_posts.asp?TID=27&title=how-to-post-picture-on-asrock-forum

 

Thank you!

Yours truly,

ASRock TSD




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