Bios 4.40 - 4.60 DCmode Bug?

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   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 

Edited by Zapious - 15 Apr 2018 at 4:39pm

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Zapious Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 15 Apr 2018 Location: Canada Status: Offline Points: 4	Post Options Post Reply Quote Zapious Report Post Thanks(0) Quote Reply 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 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

kerberos_20 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 06 Dec 2017 Location: czech republic Status: Offline Points: 2577	Post Options Post Reply Quote kerberos_20 Report Post Thanks(1) Quote Reply 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
	userbenchmark

cristy6100 Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 15 Mar 2018 Location: Romania Status: Offline Points: 269	Post Options Post Reply Quote cristy6100 Report Post Thanks(0) Quote Reply 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 4.90 \| Corsair LPX DDR4 2400@3200 1.35V \| Corsair RM650i PSU \| CM ML120L AiO Cooler

kerberos_20 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 06 Dec 2017 Location: czech republic Status: Offline Points: 2577	Post Options Post Reply Quote kerberos_20 Report Post Thanks(0) Quote Reply Posted: 15 Apr 2018 at 9:06pm
	true, those url bbcodes are weird Edited by kerberos_20 - 15 Apr 2018 at 9:07pm
	userbenchmark

Reinvented Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 22 Jun 2017 Status: Offline Points: 113	Post Options Post Reply Quote Reinvented Report Post Thanks(0) Quote Reply 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.

cristy6100 Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 15 Mar 2018 Location: Romania Status: Offline Points: 269	Post Options Post Reply Quote cristy6100 Report Post Thanks(0) Quote Reply 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 4.90 \| Corsair LPX DDR4 2400@3200 1.35V \| Corsair RM650i PSU \| CM ML120L AiO Cooler