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Lost Here... I need help

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Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
Printed Date: 16 Jun 2024 at 11:09am
Software Version: Web Wiz Forums 12.04 -

Topic: Lost Here... I need help
Posted By: Aballarde
Subject: Lost Here... I need help
Date Posted: 07 Apr 2023 at 2:14am

I just purchased AsRock x670e pro rs motherboard to upgrade my AM4 system to AM5 system. This new AsRock motherboard did not come with Bios explained in the included user manual. Since these AM5 motherboards are just starting to be availble in the market, there is not much useful info anywhere yet. Anyway, I need some help. Here is my Rig specs:

AsRock x670E pro rs motherboard
G.Skill Flare X5 series AMD EXPO 64gb (2x32gb) memory
AMD RADEON RX6700XT graphics card
Corsair RM 850 w 80+ gold PSU
Samsung 970 evo ssd 500gb Drive

My question will be: if I can enable enable Above 4G Decoding for AMD Smart Access memory to work, and how I do this.Or, Does anybody knows where I can get a hold on Bios documentation for this motherboard? I'm really lost here. Any help will be Appreciated.

Posted By: threadzipper1957
Date Posted: 07 Apr 2023 at 5:43pm
In the manual download section there is also a BIOS manual" rel="nofollow -
Above 4G decoding can only be used when CSM is set to disabled, then, also the resizable bar is available
Or use the support form" rel="nofollow -
Check your spam folder for replies.

Kind Regards

Posted By: Aballarde
Date Posted: 11 Apr 2023 at 12:34pm
Thank you, now I know where it is in Bios. One thing that I noticed while reading all the Bios settings is that there is no EXPO settings, and as far as I know, this motherboard supports AMD EXPO. The only settings are for intel XMP and I have a Ryzen CPU. Any issues if I use XMP on DDR5 memory designed for EXPO?

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