PBO and X470 Taichi Ultimate
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=11489
Printed Date: 18 Jul 2025 at 9:08am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: PBO and X470 Taichi Ultimate
Posted By: Naenyc
Subject: PBO and X470 Taichi Ultimate
Date Posted: 16 May 2019 at 1:02am
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Precision Boost Override(PBO), does not seem to be activated by the settings in the BIOS. AMD Ryzen Master -> Current indicates that it is off, after setting it as fnordie stated in XFR2 and PBO [URL=http://forum.asrock.com/forum_posts.asp?TID=9279&title=xfr2-and-pbo]XFR2 and PBO[/URL] XFR is under Advanced -> CPU Configuration PBO under Advanced -> AMD CBS -> NBIO -> "XFR Enhancement" -> Precision boost overdrive (its funny wor the PBO is called XFR, dont get confused) As many have stated, this is very frustrating for a top of the line MB, is there clearer documentation out there? |
Replies:
Posted By: jinjervitus
Date Posted: 16 May 2019 at 1:08pm
| What bios version? |
Posted By: gizmic
Date Posted: 22 May 2019 at 12:46pm
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with it disabled i get max 3.9ghz while with it enabled i have 4.1-4.3 somewhere around there i dont have master install as it seems to be a useless program to me ------------- 
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Posted By: akirabbq
Date Posted: 22 May 2019 at 3:23pm
| The PBO/XFR setting does not do much after BIOS version 3.xx. |
Posted By: fnordie
Date Posted: 22 May 2019 at 4:07pm
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I read that withe the new bios versions wich have a BETA Agesa version pbo is broken or missing. P state oc is also gone with the new version. The bios should be released as Beta... |
Posted By: J Z
Date Posted: 22 May 2019 at 4:59pm
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Best ZEN1 BIOSe https://www.jzelectronic.de/jz2/forum.php?act=38133 ------------- Kind Regards, JZ https://shop.JZelectronic.de - Der Shop mit ausgesuchter ASRock Profi Hardware https://www.facebook.com/asrock.de |
Posted By: gizmic
Date Posted: 22 May 2019 at 5:13pm
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@JZ i actually always wanted to ask if the 1.64 on taichi U is better than the 2.00 or is it the same with the extra ram speed straps -------------
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Posted By: jinjervitus
Date Posted: 23 May 2019 at 1:08am
| Glad I sat tight on 1.62 with my 2700x. No plans for Ryzen3 any time soon. |
Posted By: gizmic
Date Posted: 24 May 2019 at 12:51pm
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i flashed to 3.10 just for kicks havent played around with it yet but yes the amd section of the bios is alot shorter it seems to boost normal at 100 and it doesnt boost at 101 or maybe i have to activate it again as it is displaying a very low vcore -------------
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Posted By: J Z
Date Posted: 24 May 2019 at 2:22pm
 ------------- Kind Regards, JZ https://shop.JZelectronic.de - Der Shop mit ausgesuchter ASRock Profi Hardware https://www.facebook.com/asrock.de |
gizmic wrote:Posted By: gizmic
Date Posted: 24 May 2019 at 8:55pm
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confirmed it will only boost @ 100 -------------
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Posted By: Naenyc
Date Posted: 25 May 2019 at 1:39am
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Thanks for the responses guys, First, the E-Mail feature is not working, missed the comments. Had the 2.0 BIOS, that abomination, just noted that the 3.1 went up. This has fixed the PBO option and my RAM issues. AsRock took over a year to provide the most basic of features? |
Posted By: gizmic
Date Posted: 25 May 2019 at 10:22am
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thats strange 2.0 is the best version for me as it was the first bios that lets me do 3466 @ 14 coming from 3333 and yes pbo/xfr works perfectly on that unlike 3.1 which only works on stock 100 -------------
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Posted By: Naenyc
Date Posted: 25 May 2019 at 11:34am
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I've had such poor luck, I guess my ambitions are low. HWinfo shows up to 4148Mhz and I'm running my 3600 Ram at 3333. The GSkill Ram wasn't certified for Ryzen. The support from ASRock seems to be diminishing from its already low level. Might have to try something other than 100. |
Posted By: gizmic
Date Posted: 25 May 2019 at 12:53pm
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why CL and volts are you pushing at 3333 i have to give ram 1.375 @ cl 14 & for 3466 its a good 1.40 mine arent ryzen ready and you are better trying to tighten the timings on whatever speed you can get its way better than 3600 @ 16 -------------
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