New Build Ram Issue
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=6934
Printed Date: 01 Aug 2025 at 5:29am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: New Build Ram Issue
Posted By: Quesoseven
Subject: New Build Ram Issue
Date Posted: 14 Dec 2017 at 4:19am
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My new build will not boot with the reccomended dual ram slot configuration. It will only boot with one RAM stick inserted into the A1 slot. After I attempt to use dual slot ram configuraton, the system will no longer boot even with one RAM stick until I remove all components from the motherboard and reset CMOS. I have downloaded the latest BIOS version and latest drivers. Being new go pc building, there are some things that I'm not sure about and that are difficult to find information on, hence while I'm posting here. I have contacted technical support but haven't gotten a reply within 24 hours. Things I don't know: 1. Do I need to set the RAM speed and voltage to a certain number on the BIOS? From what I've gathered from the internet, I believe it should boot fine it it's standard configuration. 2. I believe this RAM is compatible with my motherboard. It is listed on the ASROCK website as being compatable, as well as being reccomended by pcpartpicker to be a good match for this setup. However, the RAM compatability list a but confusing to comprehend and I've seen different interpretations of how to read it online. I'd like to know if this RAM is truly compatible in dual slot ram configuration. Build setup/specs Windows 10 os Asrock Z270 Killer SLI/ac motherboard BIOS version 2.10 Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 3000MHz C15 Memory Kit (CMK16GX4M2B3000C15) Intel i5 7600k cpu EVGA Nvidia GeForce 1060 6gb EVGA G2 650w Gold power supply Samsung 500 gb ssd Corsair H60 AIO cpu cooler Fractal Design Meshify C Case Any help is greatly appreciated, thanks! 
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Replies:
Posted By: ASRock_TSD
Date Posted: 15 Dec 2017 at 10:12am
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Dear Quesoseven,
Thank you for choosing ASRock.
Regarding your case, CMK16GX4M2B3000C15 should works properly on ASRock Z270 Killer SLI/ac. We have tested there version of CMK16GX4M2B3000C15 in our lab can works fine. Please check with our memory support list. CMK16GX4M2B3000C15 ver. 5.30, 4.23, 3.32 https://www.asrock.com/MB/Intel/Z270%20Killer%20SLIac/index.asp#Memory" rel="nofollow - https://www.asrock.com/MB/Intel/Z270%20Killer%20SLIac/index.asp#Memory We provide some suggestion for you to try. 1. Please install one stick memory on each slot to try if system can boot up at XMP mode. 2. Please install another stick memory to each slot to try. 3. Install two memory modules on A2, B2 slots to try. 4. Because the memory controller is inside the CPU, please reinstall the CPU and check if the CPU socket pin is fine.
Thank you! Yours truly, ASRock TSD |