ASUS 300 and 400 AM4 Motherboards Fully Support AMD Ryzen 3000 Processors
UEFI BIOS update delivers compatibility with 3rd Gen AMD Picasso APUs and Matisse CPUs with no loss of features, highlighting the ASUS commitment to customer care
TAIPEI, Taiwan, Month Date, 2019 ASUS today reiterated that its complete lineup of 300 and 400-series, AM4-socket-based motherboards offer full-feature support for the latest AMD Ryzen™ 3000-series CPUs and APUs, via an easy UEFI BIOS update that’s available immediately.
Not content with creating the industry’s best X570 motherboards, ASUS puts the needs of its customers first, and is committed to providing the best possible BIOS support for both new and existing motherboards. Our engineers have been working to ensure that the both the interface and all key features of the acclaimed ASUS UEFI BIOS are available to users of existing ASUS 300 and 400-series, AM4-socket motherboards.
Consistent, dependable features and support, via the same award-winning UEFI BIOS interface
A significant benefit of the award-winning ASUS UEFI BIOS is that our engineers work carefully and methodically to ensure that both the popular graphical interface and all key features are still available to users of all ASUS 300 and 400-series, AM4-socket motherboards. For ASUS customers, regardless of the ROM size of their motherboard, there’s no need to purchase a new motherboard simply to access features that had been available prior to the update. The upshot is that those using ASUS 300 and 400-series, AM4-socket motherboards who wish to upgrade to 3rd Generation Ryzen 3000 APU or CPU can do so safe in the knowledge that their existing BIOS experience and feature set will remain intact. In addition, ASUS will ensure that older CPUs are still supported after the BIOS update. The full compatibility list is as follows:
|
Processor |
Bristol Ridge |
Summit Ridge |
Raven Ridge |
Pinnacle Ridge |
Picasso |
Matisse |
|
A-series APU/Athlon™ CPU |
Ryzen™ 1000-series CPU |
Ryzen™ 2000s-eries APU/Athlon™ APU |
Ryzen™ 2000-series CPU |
Ryzen™ 3000-series APU |
Ryzen™ 3000-series CPU |
|
|
X570 |
No |
No |
Yes |
Yes |
Yes |
Yes |
|
X470 |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
|
B450 |
No |
Yes |
Yes |
Yes |
Yes |
Yes |
|
X370 |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
|
B350 |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
|
A320 |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Updating an ASUS 300 or 400-series, AM4-socket motherboard for compatibility with the latest AMD Ryzen APUs and CPUs processors takes just moments, via one of two simple methods. With the ASUS-exclusive USB BIOS Flashback feature ― which is built in to selected ASUS motherboards ― users need only to download the latest UEFI BIOS to a USB flash drive and connect the motherboard’s power supply; then insert a FAT32-formatted USB drive and press the motherboard’s USB BIOS Flashback or Reset button. No AM4 processor or memory modules need to be in place, and the update will complete in a few moments. Alternatively, users may update via the EZ Flash 3 utility that’s integrated with the ASUS UEFI BIOS. This tool allows the update to be applied via an inserted USB drive or downloaded directly from the internet. The UEFI BIOS update is available from the relevant motherboard-support page, via the ASUS Support website at https://www.asus.com/support.
Senior Member
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thats just the rom image, the firmware requires more than this in operation.
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Joined: 2003-09-14
The B450 only loses Bristol Ridge, and all the others are fine.
What is so different about the X570 Bios that they have to kill two whole processor lines ?
Its a niche case for a Ryzen 1 owner to get an X570, but if he's upgrading to Ryzen 3xxx series, he might want to use the Ryzen 1 to update the Bios ? Or Wait until the X3900/3950 shows itself ?
Wonder what the size of their X570 Bios chip is....
(I have an Asus B450M Pro-Gaming....not flinging poo at Asus for the kicks
)edit : As Huggi rightly states below, X570 was never intended to have Ryzen 1 or Bristol Ridge. My bad brain fart, complete bollox.
Senior Member
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its probably not economical to test cpu's that would never be used in an x570.
all x570's come with cpu support for 3k chips, how good or bad it is is just a matter of the agesa version.
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Good job Asus.
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Posts: 23
Joined: 2013-04-05
thats just the rom image, the firmware requires more than this in operation.
So downloaded file is basically compressed? To be honest, I don't really know how BIOS installation works... I just download the file, flash it, then use it.
In any case, it seems that ASUS doesn't have the BIOS size issues that some other manufacturers have had which is a good thing for ASUS users I guess.
So Asus is really there for customer care and upgrades, but the X570 loses Bristol Ridge, and Ryzen 1 support ?
The B450 only loses Bristol Ridge, and all the others are fine.
What is so different about the X570 Bios that they have to kill two whole processor lines ?
Its a niche case for a Ryzen 1 owner to get an X570, but if he's upgrading to Ryzen 3xxx series, he might want to use the Ryzen 1 to update the Bios ? Or Wait until the X3900/3950 shows itself ?
Wonder what the size of their X570 Bios chip is....
(I have an Asus B450M Pro-Gaming....not flinging poo at Asus for the kicks
)I'm fairly certain that's not ASUS' fault since it was AMD who decided not to include Ryzen 1000 series support on the X570 chipset. Every X570 motherboard, regardless of brand, has this issue.
Senior Member
Posts: 5078
Joined: 2018-03-21
old bios were a small flash rom with a battery backed cmos chip for settings storage
uefi is a firmware package that runs like its own mini os, and while some settings may still get stored in a chip that can have its battery removed, there are other parts of it that are saved to the Flash chip and also that log aspects of the uefi itself.
asus for instance save their oc profiles onto the flash rom so that cmos clears don't wipe them entirely.
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Posts: 1281
Joined: 2003-09-14
So downloaded file is basically compressed? To be honest, I don't really know how BIOS installation works... I just download the file, flash it, then use it.
In any case, it seems that ASUS doesn't have the BIOS size issues that some other manufacturers have had which is a good thing for ASUS users I guess.
I'm fairly certain that's not ASUS' fault since it was AMD who decided not to include Ryzen 1000 series support on the X570 chipset. Every X570 motherboard, regardless of brand, has this issue.
Yeah, a complete fu*k up on my part.
Was reading a computing mag in the train on the way home after a b'stard day at work, and there was the AMD slide with the chipsets, and X570 not having Ryzen 1 or Bristol Ridge.
It had slipped my memory.
I have become my worst enemy, lol

Senior Member
Posts: 2474
Joined: 2010-01-03
well this further confirms that ASUS software team is doing a better job, in my experience gigabyte's interface is a disgrace and even buggy with sleep states, but then asus has this driver rootkit thing...
Senior Member
Posts: 710
Joined: 2017-02-14
As a Gigabyte X370 K7 owner I have to agree. At least i'm not in the BIOS allto often because its a non-intuitive pain. With that said it has been rock stable.
Junior Member
Posts: 3
Joined: 2018-09-03
yeah, i've try to installing R5 3600 on Asus A320 (after updated BIOS to 5007), it works very stable, good performance not too different compare to X570 motherboard,,good job Asus
Senior Member
Posts: 2308
Joined: 2007-05-31
I agree, clear bios are ASUS and MSI (more bling bling but as good), Gigabyte are average and Asrock are a bit messy despite it work fine... For the last 2 it doesn't mean bad quality of the motherboard that are very good, only less nice bioses.

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Posts: 23
Joined: 2013-04-05
I noticed a month ago that the latest BIOS for my Crosshair VI Hero (WiFi-ac) was only just over 10MB in size. Makes me wonder why MSI and other vendors have BIOSes that are filling up their 16MB chips...