AMD Smart Access Memory

killroy67

[H]ard|Gawd
Joined
Oct 16, 2006
Messages
1,258
So I read that to use AMD's smart access memory feature on the new 6000 series, you have to have CSM in the bios disabled.If it isn't disabled, you would need to do a full reinstall of Windows 10. Most setups CSM is enabled by default, I check and mine is enabled. Can anyone confirm this, if I had to do a reinstall of Windows 10 that is a real deal breaker for me.
 

arestavo

[H]ard|Gawd
Joined
Mar 25, 2013
Messages
1,672
I believe that being able to disable CSM and booting Windows still means that your drive is formatted GPT.

Those that don't have that will need to convert their boot drive, or reinstall Windows if they don't want to bother with command line conversion.
 

polonyc2

Fully [H]
Joined
Oct 25, 2004
Messages
20,796
so under normal conditions (not counting Smart Access Memory) is it best to have CSM enabled or disabled?...what benefits does having it Enabled give you?
 

somebrains

[H]ard|Gawd
Joined
Nov 10, 2013
Messages
1,596
If you need Secure Boot enabled, you’d disable CSM on an Intel board.
If your components, especially gpu, support uefi then you can disable CSM if you think mixed mode is doing something measurably problematic.
You’d want to convert mbr partitions to gpt.

If you are specifically working on Linux environments I can see wrangling with CSM to be old hat.
I didn’t know SAM on AMD required CSM to be turned off.
It’s really not a big deal, I wonder if nvidias SAM implementation will be the same.
 

b1rd

Limp Gawd
Joined
Feb 19, 2021
Messages
177
Does anyone know if smart access memory works on rx 5500xt 8gb cards and if so what are the gains and are there any?
According to the hw info program it says that my rx 5500xt 8gb has support for SAM but I can't try it because I don't have an adequate processor.
rx 5500xt.JPG
 
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