Intel Motherboards - Z370 EXT4 Ram problem

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Z370 EXT4 Ram problem

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=9499
Printed Date: 08 Aug 2025 at 12:15pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Z370 EXT4 Ram problem

Posted By: haduy
Subject: Z370 EXT4 Ram problem
Date Posted: 23 Aug 2018 at 10:41pm

" rel="nofollow - I have Asrock Z370 Extreme 4 and a i5 8400 using this RAM:

https://www.corsair.com/ca/en/Categories/Products/Memory/Vengeance-PRO-RGB-Black/p/CMW16GX4M2A2666C16

These Ram sticks have bus 2666 but when i choose xmp profile 1 2666mhz, PC cant boot to Win so i must reboot and choose Auto (bus 2133 default). I think it is newest Ram so my MB cannt work properly, it right?

Replies:

Posted By: ASRock_TSD
Date Posted: 24 Aug 2018 at 9:41am

" rel="nofollow -

Dear Haduy,

Thank you for choosing ASRock.

Regarding your case, we provide some suggestion to try.

1. Install the memory at A2, B2 slots.

2. Install each memory at each slot to try.

Thank you!

Yours truly,

ASRock TSD

Posted By: haduy
Date Posted: 24 Aug 2018 at 11:25pm

Thanks for your support, i update Bios to 3.1 and it works well :D