Intel Motherboards - Intermittent case power LED

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Intermittent case power LED

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=4856
Printed Date: 24 Jul 2025 at 12:04pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Intermittent case power LED

Posted By: Skylinestar
Subject: Intermittent case power LED
Date Posted: 15 Apr 2017 at 7:14pm

" rel="nofollow - I'm using Z170 Gaming K6 motherboard in my Fractal R5 case. The power LED output from the mobo seems weird. Sometimes the power LED on the casing lights up, sometimes it's dim, sometimes it doesn't light up (which is 90% of the time). The HDD busy LED is ok though.
I've tried going to the UEFI BIOS and set Good Night LED (initially "auto") to "off". At "off", the power LED on the case lights up but dim. Therefore, I don't think it's the problem with the Fractal R5 case.
What's up?
I'm not sure if flashing BIOS will even fix it. Currently P2.10.

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- ASrock Z170 Fatal1ty Gaming K6 (BIOS v2.10)
- Intel Core i5 6500 (stock)
- Corsair Vengeance LPX 4GBx2 (CMK8GX4M2A2666C16R) (2133 stock)
- Crucial M4 128GB SSD (CT128M4SSD2)
- Corsair GS700 PSU