MSI adds ZEN3 support to Series 400 Chipsets, even with 16 MB BIOS
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anticupidon
My Mortar B450 is doing a happy dance!
Going to upgrade the 2200G to newest APU.
k3vst3r
It's not confusing, what MSI are doing is basically dropping support for older chips to make room for Zen 3 chips. Probably drop some of the first generation ryzen cpu's off to make room for Zen 3 chips.
poornaprakash
When people talk about memories not less than GBs why mobo vendors miserly embed 16 MB BIOS ROMs which were the norms of 2000s ?
jbscotchman
I figured they would be the first to announce it.
Alessio1989
16MB BIOS ROM are more than enough for storing few KB of AGESA microcode.. The space is "wasted" by 3rd party chipset firmwares, useless functions and graphics effects and of corse ad-hoc system tuning code (eg: overclocking functions, fans tuning) and basic BIOS program.
vbetts
Moderator
Astyanax
Undying
Then it makes sense getting rid of the support for older cpus to make room for the new ones. 16mb is more than enough to support all zen2/zen3 cpus.
Alessio1989
wavetrex
I also consider the 32MB need completely bulls**t.
My "ancient" PRIME X370-PRO has the latest AGESA ComboAM4 1.0.0.4b in a bios image of only 11 MB, which it increased just by 3 MB since I bought it for a Zen 1 (R7 1700) CPU (and it STILL supports that one, I tested, since I still have it)
So the entirety of all the CPUs since first release of Zen (2000 series, 3000 series, all APUs) only increased the bios image size by just 3 MB !??
Even if the AGESA need for Zen 3 is double the size of what was added for Zen 2, it should STILL fit in 16 MB just fine without removing the support for any of the CPUs.
And my guess is that 300 series could support Zen 3 just fine IF they (AMD) wanted it...
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I think this entire situation is a combination of lazy programming and marketing BS.
rl66
rl66
schmidtbag
Alessio1989
Bitmap graphics waste a lot of space.
Those are 128Mb, all ASUS motherboards like all other OEM use 16MB (128Mb) or 32MB (256Mb) ROMs for BIOS.
Agonist
Cool.
My board should get Zen3 support then.
MSI X470 Gaming Pro.
Just wanna slap in a 4600x and some 3600+ ram.
Currently have a 2700x and 3000mhz
Clouseau
If people did not watch the Gamers Nexus videos or read up on it, 16MB roms were around not because they were cheap but because pre-matisse Ryzens could not address anything above 16MB...in fact if they were put into a board with a 32MB rom and no special tricks applied, the pre-matisse Ryzen would/could not boot. So the boards that have 32MB roms and support pre-matisse Ryzens divide up the rom in such a way that the other half of the rom does not exist for them.
EspHack
Astyanax
https://1.bp.blogspot.com/-MQsT67CuWi4/V9_jrWlPYgI/AAAAAAAAB6c/nNLU4LzENXY4Y2oD7jN8pCD5tkaW5hV6gCLcB/s1600/no-nonsense.gif
Fender178
Cooe