Intel Motherboards - Power supply only has 8 pin CPU connector

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Power supply only has 8 pin CPU connector

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=15057
Printed Date: 03 Aug 2025 at 6:23am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Power supply only has 8 pin CPU connector

Posted By: merrick97
Subject: Power supply only has 8 pin CPU connector
Date Posted: 28 Jul 2020 at 11:23am

Help! I bought an Asrock Z490M motherboard and I noticed that it required the usual 8-pin 12V and a 4-pin 12V. My power supply has the 8-pin 12V, but it does not have the 4-pin 12V. Right now the PC will boot. Is the additional 12V 4-pin necessary for basic use? Its not going to be overclocked or anything crazy. It will do some gaming, but mostly work.

Any suggestions? I would prefer to not have to replace the power supply.

Replies:

Posted By: ASRock_TSD
Date Posted: 28 Jul 2020 at 3:28pm

Dear Marrick97,

Thank you for posting your query.

If you are using the system without heavy loading, then it should be fine with 8-pins connected.

However, gaming can require lots of performance, thus, it is recommended to connect all power ATX pins.

With thanks,
ASRock TSD