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X470 Taichi with P3.40 BIOS will support 3900X ?
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Earanak View Drop Down
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    Posted: 06 Jul 2019 at 7:20pm
CPU-Support List for X470 Taichi, why 3900X missed ?
https://www.asrock.com/MB/AMD/X470%20Taichi/index.asp#CPU

If i update BIOS to P3.40 - X470 Taichi will support 3900X ?
Or i need wait next BIOS version ?
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Ray62 View Drop Down
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Points: 706 		Post Options Post Options   Thanks (1) Thanks(1)   Quote Ray62 Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jul 2019 at 8:06pm
Nobody can/will tell you today, if the 3900X will run on the X470 Taichi, but probably yes.
https://www.reddit.com/r/Amd/comments/c7qj5e/am4_vcore_vrm_ratings_to_help_you_decide_on_a/

But just wait for review and tests.
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Earanak View Drop Down
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Points: 6 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Earanak Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jul 2019 at 8:12pm
I use this for VRM-Components Analysis.
https://docs.google.com/spreadsheets/d/1wmsTYK9Z3-jUX5LGRoFnsZYZiW1pfiDZnKCjaXyzd1o/htmlview?sle=true#gid=2112472504

I'm sure everything will be fine with VRM and 3900X/3950X. But my question about P3.40 BIOS, i dont have any Ryzen CPU yet. If i send my motherboard to Service-Center for BIOS Update, i am not sure will it work with 3900X and P3.40 BIOS. Or i need wait for newer BIOS version...
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Most likely you will need a proxy CPU just to flash a BIOS version that supports the 39xx.
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Earanak View Drop Down
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xhue, i know it.

Like I said - i'm think about send motherboard to the service center to update the BIOS (P3.40).
But i'am not sure P3.40 support 3900X or not. If not, then i will wait... That's why I ask.
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Ray62 View Drop Down
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If you look to the Asrock CPU support lists, you will not find an entry for a Ryzen 9 CPU, even for the X570 Taichi!

AGESA Combo_AM4 PI 1.0.0.3 is the newest from AMD, part of X570 Taichi bios version 1.30. And Version 1.40 now says "Enhance Ryzen 9 CPU performance".

The X470 Taichi bios 3.40 got AGESA Combo-AM4 1.0.0.1, this is the minimum AGESA required for Zen2.
I think there will be more updates coming soon with Combo_AM4 PI 1.0.0.3 also for the X470/X370 boards.

Just wait for reviews and tests beginning tomorrow, next week.
I am pretty sure, that somebody tests the X470 Taichi with a Ryzen 9 (or did it already) and we will see if an update to Combo_AM4 PI 1.0.0.3 is required.
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I'm awaiting this answer as well. I really would like to purchase a Taichi x470 board, but if the web site doesn't updated or if we don't get a response I will be forced to buy from another manufacturer.
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last i've check its there this is some 10 hours ago
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Earanak View Drop Down
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Ok now he's there... 3900X(100-000000023)
https://www.asrock.com/MB/AMD/X470%20Taichi/index.asp#CPU
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Points: 13 		Post Options Post Options   Thanks (0) Thanks(0)   Quote frenchyaz Quote  Post ReplyReply Direct Link To This Post Posted: 10 Aug 2019 at 5:42am
The 3000 serie CPU is supported since BIOS 3.40, including 3900x (and more likely 3950x as it is a 3000 serie).
Frenchyaz
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