AMD Motherboards - Ram and XMP problems with x399 Taichi

Print Page | Close Window

Ram and XMP problems with x399 Taichi

Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=10170
Printed Date: 23 Jul 2025 at 10:11am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Ram and XMP problems with x399 Taichi

Posted By: KarlMarx
Subject: Ram and XMP problems with x399 Taichi
Date Posted: 15 Nov 2018 at 12:57am

Hi Everyone!
I have two issues with my ram memory with My x399 Taichi.
1)The RAM memories (Corsair Vengeance LPX 64 GB 8X8 2400mhz) are stuck to 2133mhz, so I tried to activate XMP profile at 2400mhz but when I select it the pc won't boot and I need to clear cmos.
2) I updated the bios to the latest version cause with previous versions Windows recognize all the 64 gb but allow me "to use" just 29 gb. Now Bios and Windows recognize me only 32 gb (But windows allow me "to use" all of these 32) Damn. I think this sticks are not totally compatible with this motherboard,also if in the memory list there are listed as compatible. Any Idea? Thank you so much.

BIOS 3.30

P.S Forgive me for my bad english :D

-------------
PC SPECS
CPU-AMD RYZEN THREADRIPPER 1950X
MOBO-ASRock Taichix399
Ram-Corsair Vengeance 2400 8x8
GPU-MSI-Nvidia GeForce GTX 1080
AIO-NZXT KRAKEN X62
PSU-Be Quiet! Dark power pro 11 850
SSD-MP500

Replies:

Posted By: basedmeezus
Date Posted: 15 Nov 2018 at 4:14am

check out power down mode and gear down mode and disable both of them and see what happens then. Also make sure the dram timings are set correctly/what the manufacture has put on the ram sticks. One last thing I'd say is plug them in one at a time and then run a memory test on each individually and then continually(putting 1 in at a time but not removing them till you get to 4 rams plugged in)

Posted By: KarlMarx
Date Posted: 15 Nov 2018 at 6:23pm

I can't find on the uefi menus the options power down mode and gear down mode.

-------------
PC SPECS
CPU-AMD RYZEN THREADRIPPER 1950X
MOBO-ASRock Taichix399
Ram-Corsair Vengeance 2400 8x8
GPU-MSI-Nvidia GeForce GTX 1080
AIO-NZXT KRAKEN X62
PSU-Be Quiet! Dark power pro 11 850
SSD-MP500

Posted By: basedmeezus
Date Posted: 15 Nov 2018 at 6:59pm

It should be under OC Tweaks>dram timings> and then scroll all the way down and you should see it