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Bios 4.40 - 4.60 DCmode Bug?

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Zapious View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Zapious Quote  Post ReplyReply Direct Link To This Post Topic: Bios 4.40 - 4.60 DCmode Bug?
    Posted: 15 Apr 2018 at 11:15am
Ok, so I am new to the forum (although I've had my MB a year now) Hello everyone :)

 I have the Taichi X370 and recently updated my bios from 3.20 to 4.60 (3.2 to 3.3 t0 4.4 to 4.6)
My Ram now runs at 3066  (just xmp)(corsair 3200) highest before was 2933.  Bonus!
However,  I need to set the CPU_Opt fan header to "DC Mode"  so I can "power management" my 3 pin
fans. BUT, when I save that setting, the computer shuts completely off (last code seen A7 )  then starts
up and boots normal, and won't do the  "2 boot thing" unless I kill power to the PSU. (unplugg or PSU switch).

Any thoughts or comments?

Thnx Smile




Edited by Zapious - 15 Apr 2018 at 4:39pm
Asrock Taichi X370, Ryzen 1700X OC 3925, EVGA 1070FTW, 32GB Tridentz 3200 cas14, EVO 960 M.2, EVGA SN850 G3, EKWB Custom Loop
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kerberos_20 View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote kerberos_20 Quote  Post ReplyReply Direct Link To This Post Posted: 15 Apr 2018 at 4:04pm
mine board experienced plenty of bios versions and each version had different set of bugs...
bios bugs are normal, they will get eventually fixed later, use bios version which works for you
Asrock x370 Fatal1ty Gaming X Bios 4.80,
Ryzen5 1600x @ 4.1GHz 1.375v,
G.Skill TridentZ RGB F4-3200C14D-32GTZR @ 3333MHz (14-14-14-34-48),
Arctic Liquid Freezer 240,
Palit GTX1060 3GB,
Samsung 970evo
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cristy6100 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cristy6100 Quote  Post ReplyReply Direct Link To This Post Posted: 15 Apr 2018 at 5:29pm
I already reported a bug regarding the DC mode with latest UEFI's

You can read about my findings here: http://forum.asrock.com/forum_posts.asp?TID=8166&KW=&title=yet-another-uefi-bug-with-ab350-x370-itx-ac

I reported to ASRock support my findings so the next UEFI release should fix it

PS: the Hyperlinking function has a bug I think


Edited by cristy6100 - 15 Apr 2018 at 5:32pm
Main Rig: AMD Ryzen 2400G | ASRock Fatality X370 ITX/ac UEFI 4.71 | Corsair LPX DDR4 2400@3200 1.35V | Corsair RM650i PSU | CM ML120L AiO Cooler
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kerberos_20 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kerberos_20 Quote  Post ReplyReply Direct Link To This Post Posted: 15 Apr 2018 at 9:06pm
true, those url bbcodes are weird


Edited by kerberos_20 - 15 Apr 2018 at 9:07pm
Asrock x370 Fatal1ty Gaming X Bios 4.80,
Ryzen5 1600x @ 4.1GHz 1.375v,
G.Skill TridentZ RGB F4-3200C14D-32GTZR @ 3333MHz (14-14-14-34-48),
Arctic Liquid Freezer 240,
Palit GTX1060 3GB,
Samsung 970evo
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Reinvented View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Reinvented Quote  Post ReplyReply Direct Link To This Post Posted: 16 Apr 2018 at 6:30am
I don't have a problem with 4.60 and DC on CPU_OPT header.  The only reason that it would reset and not work properly is if AM4 Boot Training fails with your overclock.  I assume you are overclocked as well?
Also, if you are trying to control the power to the fan, you want PWM, NOT DC.  
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cristy6100 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cristy6100 Quote  Post ReplyReply Direct Link To This Post Posted: 16 Apr 2018 at 5:38pm
The bug is not on the CPU-OPT fan header, is on the Chassis Fan 1 header
Main Rig: AMD Ryzen 2400G | ASRock Fatality X370 ITX/ac UEFI 4.71 | Corsair LPX DDR4 2400@3200 1.35V | Corsair RM650i PSU | CM ML120L AiO Cooler
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