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

btarunr

btarunr

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System Specs
System Name RBMK-1000
Processor AMD Ryzen 7 5700G
Motherboard Gigabyte B550 AORUS Elite V2
Cooling DeepCool Gammax L240 V2
Memory 2x 16GB DDR4-3200
Video Card(s) Galax RTX 4070 Ti EX
Storage Samsung 990 1TB
Display(s) BenQ 1440p 60 Hz 27-inch
Case Corsair Carbide 100R
Audio Device(s) ASUS SupremeFX S1220A
Power Supply Cooler Master MWE Gold 650W
Mouse ASUS ROG Strix Impact
Keyboard Gamdias Hermes E2
Software Windows 11 Pro
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.



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Meanwhile in Asusland: x370 Crosshair VI Hero? The flagship motherboard AMD used in all Zen launch promo? Literally the exact same motherboard as the x470? What? Never heard of it. Please buy our B550.

Now we know which company to avoid when AM5 hits.
 
dicktracy said:
8700k continues to age like fine wine all the way until DDR5 and PCIe 5.0 comes out. Thank you Intel.
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everything as far back as the 2600k ages like fine wine tbh, but that has more to do with Intel being lazy and AMD not providing competition for a long time soooo yeah not all great.
and also how is this something to thank Intel for? AMD pushed out SAM which just is resizable BAR which was PCI spec....and now MSI and other motherboard makers are adding it do their product....I fail to see where Intel deserves any credit at all.
 
Nice! There are videos already with benchmarked games that gain from SAM on PCs with Zen2 CPUs and Big Navi GPUs. I think someone needs to test it with Zen2 and Navi10. I would do that but my CPU is Zen+.
 
Good. I plan to get at least a 3060ti or 3070 and my MSI z490 and 10500 should suffice for quite a few years.
 
droopyRO said:
In a few years you will find a 3060 Ti or 3070 to buy :)
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Probably.

Local company here, memoryexpress, offers in store back orders. So I can place an in-store pre order for a 3070 for about $730 CAD (which is expensive but our dollar did depreciate a lot so it's expected).

When I will get it though? Probably when the moon is in the seventh house and Jupiter aligns with mars.
 
I have had BAR working with my X570 Pro and 5700. I only wish they would release one for X399. I would be interested to see how HBM works with BAR on my Vega 64.
 
Firedrops said:
Meanwhile in Asusland: x370 Crosshair VI Hero? The flagship motherboard AMD used in all Zen launch promo? Literally the exact same motherboard as the x470? What? Never heard of it. Please buy our B550.

Now we know which company to avoid when AM5 hits.
Click to expand...
Since you said that the C6H is literally the exact same motherboard as the x470 (the Crosshair VII Hero?), do you think I could cross-flash the latest x470 BIOS onto the C6H and hope it works? Could an upgraded BIOS possibly work with the 5000 series AMD processors on the C6H?

If ASUS does not give users a 5000 Series BIOS for the C6H, I'm definitely going ASROCK for my new AMD system motherboard if and when.

I was hoping to upgrade to a 5900X on the C6H motherboard, but if that doesn't happen, is the 3900X(/XT) similarly good? The reviews with price/performance ratios puts them both at nearly the same number. I don't want to spend for a new motherboard just because I want to upgrade from my current 1800X CPU. I would have preferred the 5900X over the 3900X just to be more future-proof, if nothing else.
 
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