x470 taichi bios 3.43 PBO gone mad
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=11657
Printed Date: 28 Jul 2025 at 6:06am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: x470 taichi bios 3.43 PBO gone mad
Posted By: paologab
Subject: x470 taichi bios 3.43 PBO gone mad
Date Posted: 15 Jun 2019 at 1:46am
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hi it seems to me that with v.3.43 pbo has gone. I can freeze the system simply moving quicly the mouse in firefox, or move a rendered room in sweethome3d, or launching quicly gimp, firefox, darktable... cannot even disable it, or, more precisely, it's disabled in bios but my cpu monitor frequency is still showing spikes above 3.7 GHz and even above 4 GHz now I disabled xmp ram, put cpu offset voltage to -0,1v, the two LLP to 1 to solve, but is quite sad ------------- AMD Ryzen 7 2700X w/Wraith prism x470 Taichi bios 3.50 16gb HX432C16PB3K2/16 (hynix H5AN8G8NCJR-UHC) M.2 970 EVO, SATA SSD, 2 SATA HDD AMD Radeon RX 580 8G OC Linux Kernel 5.4 Manjaro Stable XFCE |
Replies:
Posted By: paologab
Date Posted: 15 Jun 2019 at 4:30pm
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I disabled everything now, also core performance boost and c-state control ------------- AMD Ryzen 7 2700X w/Wraith prism x470 Taichi bios 3.50 16gb HX432C16PB3K2/16 (hynix H5AN8G8NCJR-UHC) M.2 970 EVO, SATA SSD, 2 SATA HDD AMD Radeon RX 580 8G OC Linux Kernel 5.4 Manjaro Stable XFCE |
Posted By: gizmic
Date Posted: 15 Jun 2019 at 4:36pm
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2700X do boost to 4ghz naturally its over 4ghz where its using xfr/pbo increase the offset to see if it works ------------- 
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Posted By: paologab
Date Posted: 15 Jun 2019 at 11:51pm
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hi thanks it's already at his max, -0,1v ------------- AMD Ryzen 7 2700X w/Wraith prism x470 Taichi bios 3.50 16gb HX432C16PB3K2/16 (hynix H5AN8G8NCJR-UHC) M.2 970 EVO, SATA SSD, 2 SATA HDD AMD Radeon RX 580 8G OC Linux Kernel 5.4 Manjaro Stable XFCE |
Posted By: gizmic
Date Posted: 16 Jun 2019 at 12:14am
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-0.1v makes it unstable you need -0.09 to -0.07v -------------
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Posted By: paologab
Date Posted: 16 Jun 2019 at 6:44pm
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hi, it seems working now. Thank you  Are these your findings? anyway why they don't put it in the default setting? with auto in each setting it is completely unstable, often doesn't boot in linux (with strange errors in the logs when eventually boots) and in windows it's even worse ------------- AMD Ryzen 7 2700X w/Wraith prism x470 Taichi bios 3.50 16gb HX432C16PB3K2/16 (hynix H5AN8G8NCJR-UHC) M.2 970 EVO, SATA SSD, 2 SATA HDD AMD Radeon RX 580 8G OC Linux Kernel 5.4 Manjaro Stable XFCE |
Posted By: gizmic
Date Posted: 16 Jun 2019 at 10:13pm
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that only means you and me drew the worst in the lottery this is nothing new to me unstable = more volts simple as that and its been like this for me since pbo got enabled i always have to adjust the offset i forgot which bios that defaults it to -0.1v but that made me not able to boot up the system -------------
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Posted By: paologab
Date Posted: 16 Jun 2019 at 11:05pm
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You're right but i think that once they added some bucks to the prices to add an X they should have tested that it works at least with auto settings. I think is more up to ASRock to adjust they settings. That said I put -0,1 according to the firs bioses. Now I'm at -0,0875. That allow up to 1,442v. It's true that is for seconds, but if you execute an intensive task it can lasts minutes. I think isn't so safe. Any way that's our bad luck ------------- AMD Ryzen 7 2700X w/Wraith prism x470 Taichi bios 3.50 16gb HX432C16PB3K2/16 (hynix H5AN8G8NCJR-UHC) M.2 970 EVO, SATA SSD, 2 SATA HDD AMD Radeon RX 580 8G OC Linux Kernel 5.4 Manjaro Stable XFCE |