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Aurora R10, Smart Access Memory?
Hello,
Is it possible to use Smart Access Memory with the new Aurora R10 with Ryzen 7 5800X and Radeon 6800 XT? If so, how do you enable it? I've read some people are saying you can't use this feature on this system?
Vanadiel
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March 1st, 2021 20:00
That would need to be enabled in the system bios. There the setting should be called Re-size bar support.
It requires a Ryzen 5000, 500 series chip set, RX6000 series card, Radeon 20.11.2 or newer, and Agesa version 1.1.0.0.
Now considering Dell cut the lane link speed on these systems down to half the speed (X8), I would not expect to much from this.
The whole idea of PCIe 4.0 was to double the bandwidth available when compared to version 3.0, to take advantage of these kind of features to the fullest.
Alas, Dell sees it differently and does not provide PCIe 4 X 16, only 4 X 8, which is the same bandwidth wise as PCIe 3 x 16. Thank you Dell for such an awesome decision.
Skindog68
2 Posts
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March 2nd, 2021 17:00
I can't find the option in bios to enable "above 4k decoding" or "resize bar".
If anyone figures this out... Please let me know.
Ryzen 5600x
Radeon 6800xt
B550 MoBo
Skindog68
2 Posts
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March 2nd, 2021 17:00
Please let me know if you figure this out... I'm in same situation.
KanesInferno
22 Posts
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March 2nd, 2021 19:00
Has anyone tweeted or asked Alienware support? I'm curious if this has been disabled on Alienware's side, I seriously hope not.
sm56
163 Posts
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March 3rd, 2021 09:00
AMD is also bringing this to the 3000 series!
https://www.theverge.com/2021/3/3/22310745/amd-ryzen-3000-smart-access-memory-resizable-bar?fbclid=IwAR36iSnUBS2kuwHqlJc00k9hkJaDRYaDfdJEJ_usGz5b61Etg65SCdRxoAU
Vanadiel
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March 3rd, 2021 11:00
Very few gaming titles do currently have support for this. Technically speaking this is not something new, and has been part of the PCIe design standard for a while.
I do hope Dell adds support in the bios for it, but I am not holding my breath for it.
Also, the PCIe slot running at half the link speed (X8 instead of X16) is going to hurt the performance for games that do support BAR support.
Adamninja
2 Posts
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March 16th, 2021 08:00
I talked with Alienware support today about this and it's still not an option. Nor could they see any note about an upcoming BIOS update to add it. Such a shame... this is a no brainer.
Jkerns0824
26 Posts
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May 28th, 2021 18:00
You can now. 3600mhz ram also works.
jingweno
1 Message
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June 7th, 2021 12:00
Can I confirm this is now configurable in the bios?
Vanadiel
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June 7th, 2021 13:00
If you have an R10 with a Ryzen 5000, yes.
If you have an R10 with a Ryzen 3000, based on my own experience, no.
Working with support to see why my R10 is not showing the options to enable/disable this function in the motherboard bios.
Vanadiel
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October 25th, 2022 14:00
I thought they added it to the BIOS. I would look there because that is where it will be, if it's there.
rmjohnson144
17 Posts
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October 25th, 2022 14:00
I have an Aurora R10 with Ryzen 5800 and a RX 6800 XT and I don't see Smart Access Memory or Rebar anywhere?
Is there a different name for it. Adrenaline says it isn't enabled. Maybe I just overlooked it somewhere?
ryzenr10
6 Posts
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October 29th, 2022 21:00
me no problem!!!
HanzMeizer
64 Posts
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November 30th, 2022 03:00
"Now considering Dell cut the lane link speed on these systems down to half the speed (X8), I would not expect to much from this."
oh wow thanks for this information, i was considering to flip my 3070 for a 6800 xt because i replaced my FHD monitor with a WQHD monitor but my expectation would be a performance increase of roughly 30% to make sense (i am mostly concerned about fps and rasterization performance in multiplayer games rather than raytracing)... i assume that i cant count on the 3-5% averager performance gain of SAM then because Dell cheaped out on the pcie pandwith?