Z390 Taichi / ASRock Board users: Resized BAR bioses available for testing. Z390 Taichi featured. PM me for details.

R-T-B · Jan 6, 2021

OneMoar said:
of course but simply increasing the bar should provide SOME improvement the bar size does not require the gpu to be aware of if thats only required for adaptive schemes such as SAM
intel spec says bar-0 default is 256MB I don't think you would ever want more then 1GB 512MB should provide some improvement without the potential hit you can get in some applications

I was not able to confirm any increase.

I can still make a build for you onemoar if you want to test more extensively. I feel you might be a good tester for a real detailed look, but just be warned impact is minor at best.

I set it to 2GBs, you think 1GB might be better?

JoeyM · Jan 7, 2021

Hello everyone, I know this thread is specifically about the DIY modding of the Z390 Taichi / ASRock Board. However, I would encourage all of you to consider signing the petition that calls on Intel (as well as all motherboard manufacturers) to release a bios that would enable Smart Access Memory (resize bar) on all Intel 300 series motherboard.

In addition to signing the petition, it would be great if you also assisted in spreading the word!

Sign the Petition

Enable resize bar (smart access memory) for Intel 300 series motherboards

www.change.org

mouacyk · Jan 7, 2021

Petition · Intel: Enable resize bar (smart access memory) for Intel 300 series motherboards · Change.org

Signed. Please need everyone to do all they can. In no way, are 300 motherboards obsolete, even if they are EOL.

bug · Jan 7, 2021

mouacyk said:
Petition · Intel: Enable resize bar (smart access memory) for Intel 300 series motherboards · Change.org

Signed. Please need everyone to do all they can. In no way, are 300 motherboards obsolete, even if they are EOL.

Petition to add support to a product that doesn't receive support anymore. Smart. Real smart.

mouacyk · Jan 7, 2021

bug said:
Petition to add support to a product that doesn't receive support anymore. Smart. Real smart.

It's a feature that should have been there from the beginning anyway.

bug · Jan 7, 2021

mouacyk said:
It's a feature that should have been there from the beginning anyway.

Oh, that changes things. Good luck.

(Btw, you're wrong. Resizable BARs is an optional PCIe feature: https://pcisig.com/specifications?speclib=resizable+bar )

OneMoar · Jan 7, 2021

its optional in that the bios needs to support it there is no hardware limitation that I am aware of that would prevent it from being supported going all the way back to pcie 2.0

bug · Jan 7, 2021

OneMoar said:
its optional in that the bios needs to support it there is no hardware limitation that I am aware of that would prevent it from being supported going all the way back to pcie 2.0

Up until now, the limitation was there was no hardware to test this with. The hardware that exists today can be counted on one's fingers and yields minimal performance changes. If you were a motherboard maker, you wouldn't bother back-porting this feature for 2% more fps either.

R-T-B · Jan 8, 2021

JoeyM said:
Hello everyone, I know this thread is specifically about the DIY modding of the Z390 Taichi / ASRock Board. However, I would encourage all of you to consider signing the petition that calls on Intel (as well as all motherboard manufacturers) to release a bios that would enable Smart Access Memory (resize bar) on all Intel 300 series motherboard.

In addition to signing the petition, it would be great if you also assisted in spreading the word!

Sign the Petition

Enable resize bar (smart access memory) for Intel 300 series motherboards

www.change.org

I fully endorse this. Will sign when I get home.

I'm not asking for a tested bios, just a board beta release or something to hack on.

OneMoar · Jan 8, 2021

I wonder how this behaves on boards with PLX chips the PLX chip needs to map the registers some how

bug · Jan 8, 2021

OneMoar said:
I wonder how this behaves on boards with PLX chips the PLX chip needs to map the registers some how

It may not even be supported in that configuration. The actual spec is not public, unfortunately

OneMoar · Jan 8, 2021

bug said:
It may not even be supported in that configuration. The actual spec is not public, unfortunately

thats what I was getting at

would explain some of the weird benchmark results we are seeing

80251 · Jan 12, 2021

I'm guessing the bar size should never be larger than the actual address space of the VRAM right?

lesp4ul · Jan 14, 2021

MSI says they will support Resizeable BAR from H310 : https://www.msi.com/news/detail/010ad17a3b1868e7e219a11274738ea7

Hello, Asrock??!

JoeyM · Jan 16, 2021

Yes, MSI has recently decided to enable resize bar for their z390 motherboards: https://www.msi.com/news/detail/010ad17a3b1868e7e219a11274738ea7

I would strongly recommend that anyone who hasn’t already signed the petition do so now. If you already signed it, please share it! This may help encourage all other motherboard manufacturers to follow suite.
Link to the petition: http://chng.it/LKLksG4yQv

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System Name	Gentoo64 /w Cold Coffee
Processor	9900K 5.2GHz @1.312v
Motherboard	MXI APEX
Cooling	Raystorm Pro + 1260mm Super Nova
Memory	2x16GB TridentZ 4000-14-14-28-2T @1.6v
Video Card(s)	RTX 4090 LiquidX Barrow 3015MHz @1.1v
Storage	660P 1TB, 860 QVO 2TB
Display(s)	LG C1 + Predator XB1 QHD
Case	Open Benchtable V2
Audio Device(s)	SB X-Fi
Power Supply	MSI A1000G
Mouse	G502
Keyboard	G815
Software	Gentoo/Windows 10
Benchmark Scores	Always only ever very fast

Processor	Intel i5-12600k
Motherboard	Asus H670 TUF
Cooling	Arctic Freezer 34
Memory	2x16GB DDR4 3600 G.Skill Ripjaws V
Video Card(s)	EVGA GTX 1060 SC
Storage	500GB Samsung 970 EVO, 500GB Samsung 850 EVO, 1TB Crucial MX300 and 2TB Crucial MX500
Display(s)	Dell U3219Q + HP ZR24w
Case	Raijintek Thetis
Audio Device(s)	Audioquest Dragonfly Red :D
Power Supply	Seasonic 620W M12
Mouse	Logitech G502 Proteus Core
Keyboard	G.Skill KM780R
Software	Arch Linux + Win10

Z390 Taichi / ASRock Board users: Resized BAR bioses available for testing. Z390 Taichi featured. PM me for details.

R-T-B

JoeyM

New Member

Sign the Petition

mouacyk

bug

mouacyk

bug

OneMoar

There is Always Moar

bug

R-T-B

Sign the Petition

OneMoar

There is Always Moar

bug

OneMoar

There is Always Moar

80251

lesp4ul

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JoeyM

New Member

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