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Adept I
Adept I

I think my Ryzen 3500U (with Radeon Vega Mobile Gfx 2.10GHz)is eating away my ram! Can anyone help?

Hi! So as I wrote in the title I have a ram related issue and I think it's from the Ryzen 3500U. I basically bought a laptop (asus vivobook s512da-ej315t, OS = windows 10) a few hours ago but first thing I discover is that I only have 5.95Go out of the 8Go I should have (with 2.1Go hardware reserved memory). 

I read on other forums that it might be GPU related (that's where my suspitions are from regarding the ryzen) and I already unsuccessfuly tried the msconfig tip (unticking the "maximum memory")...

I hope you guys can help me telling we if it's normal with this product to have 2.1Go eaten away or if you know any fix related to it, thanks a lot in advance,

Ciro

14 Replies
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Journeyman III
Journeyman III

Re: I think my Ryzen 3500U (with Radeon Vega Mobile Gfx 2.10GHz)is eating away my ram! Can anyone help?

Hi I just purchased an Acer aspire 5.

ACER Aspire 5 A515-43 15.6" AMD Ryzen 5 Laptop

I have the exact same specs a 3500u with 8GB ram and also only have 6GB useable. I believe that it is reserved for the GPU. see the linked thread below where they basically state that you can reserve up to 2 GB for the GPU if desired.

I believe you can change the settings in the BIOS maybe?

Vega 8 Video Memory | Tom's Hardware Forum 

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Esteemed Contributor III

Re: I think my Ryzen 3500U (with Radeon Vega Mobile Gfx 2.10GHz)is eating away my ram! Can anyone help?

APU's share system RAM to use for video memory. It's not a bug.

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Adept I
Adept I

Re: I think my Ryzen 3500U (with Radeon Vega Mobile Gfx 2.10GHz)is eating away my ram! Can anyone help?

Thanks for your answer! Is there any way to make it more flexible though? I rarely have to use the full 2Go dedicated to my GPU and would like to decrease it to 1Go is it possible?

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Esteemed Contributor III

Re: I think my Ryzen 3500U (with Radeon Vega Mobile Gfx 2.10GHz)is eating away my ram! Can anyone help?

2GB is about the absolute minimum you need, as just Windows resources will use half a gig.

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Adept I
Adept I

Re: I think my Ryzen 3500U (with Radeon Vega Mobile Gfx 2.10GHz)is eating away my ram! Can anyone help?

I already looked everywhere in the BIOS I have but couldn't find any graphic, DVMT or anything related to dedicated ram :/
A strange thing I saw though is that the 2015 version of my BIOS had this graphic section in advanced settings where it could be changed but in the 2019 version that I have it disappeared...

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Adept I
Adept I

Re: I think my Ryzen 3500U (with Radeon Vega Mobile Gfx 2.10GHz)is eating away my ram! Can anyone help?

I don't think you understood the real problem here, dedicated ram is different than the normal ram (well actually it's the same but the dedicated ram isn't much used, almost not at all if not playing video games, but kept locked in case it would, leaving the laptop with only 5.9Go in the end with 2 almost never used)

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Miniboss
Miniboss

Re: I think my Ryzen 3500U (with Radeon Vega Mobile Gfx 2.10GHz)is eating away my ram! Can anyone help?

ciromasters wrote:

Thanks for your answer! Is there any way to make it more flexible though? I rarely have to use the full 2Go dedicated to my GPU and would like to decrease it to 1Go is it possible?

Aside from your initial mistaken impressions, is there any reason you are worried about the amount of ram you have?  If so, I would assume you bought a laptop that can be fitted internally with more ram.  But if you aren't running programs that complain about memory, then I wouldn't give it a second thought--until that happens, if it ever does.  One major difference between desktops with discrete GPUs and laptops using shared ram is that the desktops use separate memory pools for the GPU and CPU; whereas those laptops share the same pool of ram between the CPU and the GPU.  In your case, GPU gets 2GB's; the CPU gets 6GB's.  This has nothing to do with Ryzen or AMD, btw, it's just the general way many laptops are designed, regardless of who makes the CPU and the GPU.  I'd be willing to bet if you bought your laptop via a web site that the product page for your laptop indicates that the GPU and CPU ram is shared--but honestly, too many OEMs & vendors relegate that information to the fine print.  Ah, the splendors of product marketing, eh?

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Adept I
Adept I

Re: I think my Ryzen 3500U (with Radeon Vega Mobile Gfx 2.10GHz)is eating away my ram! Can anyone help?

Sadly I don't think I got one that can get more ram and yeah although I bought it in store I did get bait by the 8Go and didn't know or get informed it was an integrated graphic card that would reserve 2Go of the ram... But the problem is that I don't need 2Go reserved (would like to make it shared instead of locked "in case it would be used" because with windows and the drivers and other system related programs taking 2 more Go, it only leaves me with 4Go of operating ram...)

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Esteemed Contributor III

Re: I think my Ryzen 3500U (with Radeon Vega Mobile Gfx 2.10GHz)is eating away my ram! Can anyone help?

I don't think you understand what "dedicated ram" is. An APU requires system RAM to use for video memory as they do not have any onboard like a discrete video card does, therefore the system dedicates a certain amount of system RAM for this purpose. This RAM IS used when not gaming for the Windows UI, all the effects, watching videos, and even internet browser objects.

Now, you're complaining about only having 6GB of RAM, but what are you doing which requires more than 6GB of RAM and doesn't require any significant video memory and is causing errors?

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