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MSI Brings Resizable-BAR to Intel 300-series and AMD 400-series Motherboards

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rjohnson11
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2021/01/14 01:59:38 (permalink)
MSI Brings Resizable-BAR to Intel 300-series and AMD 400-series Motherboards | TechPowerUp
 
MSI announced that it is bringing the PCI-SIG resizable base-address register (resizable BAR) support to a variety of older PC platforms, and not just the latest Intel 400-series and AMD 500-series. Among these are Intel 300-series, AMD 400-series, and AMD TRX40. This should come as a boon to those with 8th Gen and 9th Gen Core "Coffeee Lake" processors, such as the i9-9900K and i5-8400. Support is also being added to AMD X470 and AMD B450 chipset motherboards, however, this requires a compatible processor, and the latest beta UEFI firmware that supports them. Lastly, resizable-BAR support is making its way to the AMD TRX40 chipset (Socket sTRX4) Threadripper platform.

Resizable BAR is a feature that allows a processor to see the entire video memory of a discrete GPU as a single addressable block, rather than through 256 MB apertures. This has the potential to tangibly improve performance with certain games. Currently, AMD's Radeon RX 6000 series "Big Navi" GPUs; and NVIDIA's GeForce RTX 30-series "Ampere" GPUs support it. MSI is releasing UEFI firmware updates that add resizable-BAR support. Keep checking the "support" section of your motherboard's product page on the MSI website.
 
I'm glad to see MSI giving this type of support to the older motherboards. 
 


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    aka_STEVE_b
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    Re: MSI Brings Resizable-BAR to Intel 300-series and AMD 400-series Motherboards 2021/01/14 05:52:21 (permalink)
    Waiting for the Bios upgrade on the video cards for this feature too...

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    kram36
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    Re: MSI Brings Resizable-BAR to Intel 300-series and AMD 400-series Motherboards 2021/01/18 12:03:48 (permalink)
    Just checked out the bios page for the two MSI AMD motherboards I have. Kind of strange, my older B450 Tomahawk motherboard has a bios update that adds support for Re-size BAR function to enhance GPU performance and that bios is from 12-22-2020, but my newer MPG B550 GAMING PLUS motherboard does not have this support yet and MSI released a newer bios for it on 01-04-2021.
    post edited by kram36 - 2021/01/20 15:13:14
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    kram36
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    Re: MSI Brings Resizable-BAR to Intel 300-series and AMD 400-series Motherboards 2021/01/19 06:29:09 (permalink)
    MKAALAWAJI
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    That's interesting.
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    kevinc313
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    Re: MSI Brings Resizable-BAR to Intel 300-series and AMD 400-series Motherboards 2021/01/19 10:00:26 (permalink)
    Need to look into this for my Z390 MSI board.
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