Z87 Extreme 9ac Issue
Printed From: ASRock.com
Category: PC Modding
Forum Name: Project Build&Share
Forum Description: Show your projects here!
URL: https://forum.asrock.com/forum_posts.asp?TID=9732
Printed Date: 28 Jan 2025 at 11:09am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Z87 Extreme 9ac Issue
Posted By: Asrock_Kid
Subject: Z87 Extreme 9ac Issue
Date Posted: 21 Sep 2018 at 3:24am
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" rel="nofollow - Seeing if anyone in public area can lend some tips I have this mobo from mid 2014. It's been sitting in a case until now. I have an odd issue with mobo not powering on, an odd mobo/psu issue. The
PSU is a new Corsair AX860i. The main power cord is one plug on mobo
side that splits out to two smaller plugs on PSU side. The PSU has a
relay inside that will click on (or off) if the PSU senses an issue.
What the issue is exactly I don't know but when I insert either of the
two plugs into PSU side the PSU relay clicks, thus it will not provide
power to mobo. This Z87 mobo has two 8 pin power plugs on the side that I am not using. Are these power plugs required to be used? The
system is rather basic, GeForce GTX760 video, intel zeon, 128GB ram,
Corsair cpu water cooler, three solid state sata drives, one DVD drive,
and 3 fans (push-pull on cooler, and one in case up front). Warranty is a no-go, too old. I did inspect the mobo out of the box, did not see anything obvious, it looks good. I do not have another PSU to test with. |
Replies:
Posted By: Xaltar
Date Posted: 21 Sep 2018 at 12:22pm
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You need to connect at least 1 8 pin (CPU) power cable to the board or it will not power up. ------------- 
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Posted By: Asrock_Kid
Date Posted: 22 Sep 2018 at 4:12am
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Are you talking about 1 of the 2 8pins on the side of the mobo, AND the 24pin mobo connector to the PSU? See the pic I attached. I thought the mobo manual says the 8pins provide power (optional) to a 12phase regulator? Should I connect both of the 8pin power sockets to PSU? The PSU has the room for it.  |
Posted By: Xaltar
Date Posted: 22 Sep 2018 at 3:08pm
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Yes, those 2 8pin connectors. The top one (as per the pic) is 100% required, the one below is optional (not needed unless you are using multiple GPUs or other high power PCIe add in cards). -------------
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Posted By: Asrock_Kid
Date Posted: 02 Oct 2018 at 12:59am
This apparently has solved the issue. Now onto BIOS settings and OS install. Hopefully this PSU will stay stable. Thanks.
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Xaltar wrote:Posted By: Xaltar
Date Posted: 02 Oct 2018 at 2:53am
Happy to help, enjoy the build  -------------
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