ASRock.com Homepage
Forum Home Forum Home > Technical Support > AMD Motherboards
  New Posts New Posts RSS Feed - Ram frenquency issue
  FAQ FAQ  Forum Search Search  Events   Register Register  Login Login

Ram frenquency issue

 Post Reply Post Reply
Author
Message
alek View Drop Down
Newbie
Newbie
Avatar

Joined: 12 Mar 2018
Status: Offline
Points: 7
Post Options Post Options   Thanks (0) Thanks(0)   Quote alek Quote  Post ReplyReply Direct Link To This Post Topic: Ram frenquency issue
    Posted: 13 Mar 2018 at 5:25pm
Hi everybody,

i have an issue with the ram frenquency, i can't use the xmp profile at the full speed of my ram (or to o.c.) with win 10, i can use max 2400mhz otherwise i can't boot in to windows. But with linux i can use it even to oc 2800/3000.

Might it depends by the driver?

this is my build:
Asrock Fatal1ty AB350 Gaming-ITXac
Thermaltake Smart SE 530W
AMD Ryzen 5 2400G
G.Skill 8GB DDR4-2666 (2x4)
SSD Drevo D1 m2
BIOS 4.51

thanks




Edited by alek - 13 Mar 2018 at 5:32pm
Back to Top
wardog View Drop Down
Moderator Group
Moderator Group


Joined: 15 Jul 2015
Status: Offline
Points: 6447
Post Options Post Options   Thanks (0) Thanks(0)   Quote wardog Quote  Post ReplyReply Direct Link To This Post Posted: 13 Mar 2018 at 5:55pm
What you see, my guess, is in the different ways/terms the BIOS passe off EFI data to/between Windows and Mint. And then in turn what each OS does with said data.

You say MAX 2400 yet in the middle pic above it is running at it's rated 2666. "Configured Clock Speed: 1333 MHz

Your Kits PN is F4-2666C15D-8GVR
https://www.gskill.com/en/product/f4-2666c15d-8gvr
Back to Top
alek View Drop Down
Newbie
Newbie
Avatar

Joined: 12 Mar 2018
Status: Offline
Points: 7
Post Options Post Options   Thanks (0) Thanks(0)   Quote alek Quote  Post ReplyReply Direct Link To This Post Posted: 13 Mar 2018 at 6:28pm
Yes max 2400 with windows 10. On linux i can use it up to 3000mhz without problems.

Yes that is my kit

thanks
Back to Top
JohnM View Drop Down
Groupie
Groupie
Avatar

Joined: 20 Feb 2018
Location: UK
Status: Offline
Points: 267
Post Options Post Options   Thanks (0) Thanks(0)   Quote JohnM Quote  Post ReplyReply Direct Link To This Post Posted: 13 Mar 2018 at 11:02pm
It doesn't answer your question but I notice that there are no G.Skill DDR4-2666 kits on the QVL, at all. There's a gap between 2400 and 2933 on both the generic Ryzen QVL and the specific Raven Ridge QVL. Is there a difference between the way you're booting Windows and Linux - is one using UEFI boot and the other legacy, perhaps?

FWIW, I'm using Corsair DDR4-2666 (which is on the QVL) with the same board, BIOS and processor at 2933 with Windows 10 UEFI boot, simply by setting the RAM speed in the XMP menu with everything else at stock.

How exactly is Windows failing when you set the higher speed?
ASRock Fatal1ty AB350 ITX P4.90, AMD Ryzen 5 2400G, 2x8GB Corsair CMK16GX4M2A2666C16, 250GB Samsung 960EVO, 500GB Samsung 850EVO, 4TB WD Blue, Windows 10 Pro 64, Corsair SF450, Cooler Master Elite 110
Back to Top
alek View Drop Down
Newbie
Newbie
Avatar

Joined: 12 Mar 2018
Status: Offline
Points: 7
Post Options Post Options   Thanks (0) Thanks(0)   Quote alek Quote  Post ReplyReply Direct Link To This Post Posted: 13 Mar 2018 at 11:22pm
Thank you, you are right this RAM kit is not on the QVL but why it works fine at 2133/2400 and not on 2666mhz???

I'm booting Win10 with UEFI and Mint with a live distro on a USB drive.

On windows i can start up the system till the logon screen then when i try to insert the pw, win falls down with a black screen.

i've noticed also something else (not sure i might be wrong): before installing the AMD drivers i could use Windows with the XMP profile setted to 2666.

it's a strange thing...


Edited by alek - 14 Mar 2018 at 12:39am
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.04
Copyright ©2001-2021 Web Wiz Ltd.

This page was generated in 0.250 seconds.