Taichi X570 wrong Total Socket Power (PPT)
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=11932
Printed Date: 15 Sep 2025 at 8:51am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Taichi X570 wrong Total Socket Power (PPT)
Posted By: foxx1337
Subject: Taichi X570 wrong Total Socket Power (PPT)
Date Posted: 19 Jul 2019 at 5:10am
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According to software such as Ryzen Master or HWiNFO64, the total socket power (PPT) on my Ryzen 3900X is about half of its real value. Do I have a deffective CPU or motherboard? When I fully load the CPU, the reported PPT is 50-52% out of 142W in Ryzen Master while HWiNFO64 reports circa 60 watt power. As I know, the 3900X is a 105 watt processor. ------------- Ryzen 3900X, Taichi X570 |
Replies:
Posted By: kschendel
Date Posted: 19 Jul 2019 at 8:28am
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While I don't know what is going on in your specific situation, don't confuse power input with TDP (Thermal Dissipation Power). The 3900X is a (nominally) 105w TDP chip, meaning that at peak it can be expected to emit about 105 watts of heat. Actual power to the chip may be more or less depending on what's going on. |
Posted By: foxx1337
Date Posted: 19 Jul 2019 at 10:18am
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Clear. Still, my 3900X runs full burn at 50% out of 142W PPT, while 3700X-es I could find in screenshots or videos burn at around 100% out of 88W PPT. ------------- Ryzen 3900X, Taichi X570 |
Posted By: garych
Date Posted: 19 Jul 2019 at 6:28pm
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TDP is thermal design* power ------------- 
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Posted By: garych
Date Posted: 19 Jul 2019 at 6:31pm
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Anyway, what's your VRM current output reading? I assume HWiNFO64 displays that just like on X370 Taichi or similar. -------------
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Posted By: foxx1337
Date Posted: 19 Jul 2019 at 9:05pm
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Hey garych. It's 33 Amps, as reported by Ryzen Master in the TDC field. Here's a screenshot - https://imgur.com/a/UZRd5wa - I took yesterday at the same time with running CineBench R20. Both PPT and TDC are at around half of what I FEEL they SHOULD be (I might well be wrong here, I'm totally clueless about modern hardware, this is why I'm asking for help). This is what Ryzen Master looks like during the same test run: https://imgur.com/a/8nXjor0 The last gauge there, the EDC, is probably correct. The guys at Gamers Nexus have a very different picture in their Ryzen 3900X test here: https://www.youtube.com/watch?v=B7NzNi1xX_4&t=11m28s (the video is linked at the 11:28 exactly on Ryzen Master while running CineBench R20). To compare the numbers: - Gamers Nexus result: ~7000, same as me - clock: ~ 4 GHz, same as me - temperature: they get 85 Celsius, I get 82, same as me - PPT: they get 18% of 1000w = 180w, I see 42% of 142w = 60w (!!!) - TDC: they get 24% of 490A = 118A, I get 35% of 95A = 33A (!!!) - EDC: they get 25% of 630A = 158A, I get 66% of 230A = 152A, same as me ------------- Ryzen 3900X, Taichi X570 |
Posted By: foxx1337
Date Posted: 19 Jul 2019 at 9:17pm
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Thing is - AMD first line of support told me to fill an RMA form with them. But I don't think the processor is broken. I also don't think the Taichi is, at most some firmware bug somewhere in between the 2. If I run Prime95 small FFT test I INSTANTLY reach 95 degrees celsius at ~4 ghz all core and ~"71W" Total Socket Power (PPT) with ~"33A" of Sustained Current Limit (TDC). This would make my 3900X half as power hungry as what Gamers Nexus have and also around half of what AMD are marketing, while at the same performance. Due to it not even coming close to the 142 watt PPT, it never stops asking for more since it's halfway through the socket power limitation, but it does stop due to the other ceiling - the 95 Celsius temperature limit. As I understand from a different Gamers Nexus video where they explain PBO, the PPT number is baked into the mobo, while AMD recommend 142 watts for 105 watt TDP Zen 2s. ------------- Ryzen 3900X, Taichi X570 |
Posted By: garych
Date Posted: 19 Jul 2019 at 9:18pm
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Scroll down in HWiNFO64 and you'll see something like this [URL=https://i.imgur.com/6k75bOw.png]https://i.imgur.com/6k75bOw.png[/URL] It will show you the current and power readings from vrm by motherboard. They might not be accurate, but probably close to actual power draw. -------------
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Posted By: foxx1337
Date Posted: 19 Jul 2019 at 9:45pm
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Today I learned! Here's mine, looks credible - https://imgur.com/a/5UcjYXr So what's borked in my case then? Software bug in the Taichi BIOS, the 3900X, or the Taichi itself? Or maybe somebody forgot and they're just showing one CCD (out of the two inside this processor) in the HWiNFO64 CPU package power and Ryzen Master PPT readouts? ------------- Ryzen 3900X, Taichi X570 |
Posted By: garych
Date Posted: 19 Jul 2019 at 9:53pm
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I don't know what might be the issue here, but on X370 Taichi there's similar problem with Ryzen 7 1700 power draw readings. But instead it would show ~50% higher power and current draw than one would expect, while on other boards it's working properly. I also noticed that your VCore and SOC VRM input Power looks strangely identical. Might be HWiNFO64 bug or motherboard not reporting correctly. -------------
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Posted By: garych
Date Posted: 19 Jul 2019 at 9:56pm
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Or rather Current input value is wrong, because Power input = Current x Voltage -------------
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Posted By: garych
Date Posted: 19 Jul 2019 at 9:58pm
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And obviously power input can't be lower than output. -------------
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Posted By: foxx1337
Date Posted: 19 Jul 2019 at 10:31pm
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I opened a support inquiry with AMD on this and they're fine to RMA the cpu, which would most probably solve nothing. I also opened one with Asrock (I hope they don't directly offer to RMA, as i'm not too keen to that if it's just a firmware bug). People on /r/amd were omg-ing when I was telling them that most of the times Intel Burn test or Prime95 push my 3900X into 95 Celsius, but it seems to be working as intended, since the Taichi has the power to pump into the CPU. Thank you for your patience with this stuff. I'm curious what other people with Taichis and 3900Xs see... ------------- Ryzen 3900X, Taichi X570 |
Posted By: Tassadar
Date Posted: 10 Aug 2019 at 1:38am
Hi foxx1337, I have exactly the same problem you have, but in my case it's an x570 Steel Legend with a 3800x. The main problem is with all settings default in bios system is not stable under OCCT test with small dataset and AVX2, the system works at vcore 1,375 and 4100 mhz and reaches more than 95º. With a premium air cooling and manual overclock I've get 4300 mhz @1,275v, even with the test I've tell reaches slightly more than 90º its completely stable and in normal tests it's about 70º max I mean, on manual overclock this seems to be not a problem but definetly something's not working ok when under completely full load says 60w. Have you get any response from Asrock or AMD? Regards |
foxx1337 wrote:Posted By: Tassadar
Date Posted: 10 Aug 2019 at 3:52am
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I forgot to tell it also happends to me: If I run Prime95 small FFT test I INSTANTLY reach 95 degrees celsius at ~4 ghz all core and ~"71W" Total Socket Power (PPT) with ~"33A" of Sustained Current Limit (TDC). This would make my 3900X half as power hungry as what Gamers Nexus have and also around half of what AMD are marketing, while at the same performance. Due to it not even coming close to the 142 watt PPT, it never stops asking for more since it's halfway through the socket power limitation, but it does stop due to the other ceiling - the 95 Celsius temperature limit. Only difference I use OCCT small FFT with AVX2, processor runs at 4100mhz and 1,36v and gets 25º instantly. Regards |
Posted By: foxx1337
Date Posted: 12 Aug 2019 at 11:34pm
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ASRock told me the numbers (small wattage and aperage) are normal. The whole email thread with them is a total laughing stock if you ask me - at some point they tried to convince me that 142 W (the max reading by default) is ok, which completely misses the point, since I was complaining about the 71 part from "71 W out of 142 W". Hopefully something will happen with the next AGESA version, since ASRock seem to be relatively fast to roll them out. Maybe I even start seeing boosts past 4.3 GHz on my 3900X. ------------- Ryzen 3900X, Taichi X570 |
Posted By: Tassadar
Date Posted: 26 Aug 2019 at 10:01pm
Many thanks for your answer and sorry me for taking that long in replying you (I've been disconnected during some weeks). For your answer I see there is no responde from asrock, I obviously still have the measurement problem, perhaps will be fixed in new bios with AGESA 1.0.04??? xD Regards |
Posted By: foxx1337
Date Posted: 27 Aug 2019 at 10:56pm
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According to various thread on Reddit on bot /r/amd and /r/asrock others with ASRock X570 (not necessarily Taichi) see similar readings. Let's hope. ------------- Ryzen 3900X, Taichi X570 |
Posted By: brucer
Date Posted: 29 Aug 2019 at 4:56am
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https://www.youtube.com/watch?v=_UAqSzfpCjw&t=410s AMD reduced Ryzen 3000 boost clocks to avoid damage, says ASUS employee.. I think amd have reduced the clockspeeds with the agesa 1003abb and chipset driver update, and they did it because the cpu's cant handle where they were clocked at.. I think this is also why we arent seeing any stock resupply of the 3900x's. ------------- Asrock x570 Taichi, Ryzen3800x, 32gb Gskill Royal 36000mhz@ 3733mhz, Samsung 250gb 970evo plus for OS drive, Sabrent Rocket 1tb nvme storage drive. |
Posted By: foxx1337
Date Posted: 29 Aug 2019 at 4:59pm
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Sure, but it's unrelated to the issue of this topic. ------------- Ryzen 3900X, Taichi X570 |
Posted By: foxx1337
Date Posted: 30 Aug 2019 at 2:30am
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This behavior also being noticed by others: https://www.igorslab.media/en/three-x570-motherboards-tested-wrong-sensor-values-faulty-precision-boost-overdrive-pbo-and-different-performance/ ------------- Ryzen 3900X, Taichi X570 |