Ryzen unusual load in core0
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=4666
Printed Date: 10 May 2024 at 11:51am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Ryzen unusual load in core0
Posted By: mxpie
Subject: Ryzen unusual load in core0
Date Posted: 23 Mar 2017 at 1:03am
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I think this may be a BIOS issue but not sure. I leave my system on 24/7 and restart every week or so when necessary. I noticed that every morning HWinfo and MSI afterburner show core0 hovering around 70-80% load, while windows task manager shows almost nothing. I've searched through processes and details and tried shutting down a few things like radeon settings. but nothing makes core0 reset to normal. see picture http://img.photobucket.com/albums/v16/Yasunori/892365_zpsmekfs74e.jpg" rel="nofollow - http://img.photobucket.com/albums/v16/Yasunori/892365_zpsmekfs74e.jpg~original The load is real and not misreporting because I get noticeably worse frame rates in single thread heavy games. I've even had it lag my browser. a reboot resets this behavior but it always returns the next morning. System: Ryzen 1700 ASRock Fatal1ty AB350 Gaming K4 BIOS 1.40 previously I tried 1.42 beta and had the same issue. I had SMT disabled. Was going to try re-enabling it but BIOS 1.40 does not have the option. All other settings default. Windows 8.1 new install, fully updated. Balanced power preference with sleep/hibernate disabled. I have not seen anyone else on various forums/reddit mention this 'bug'. and I've gotten no help identifying the issue. |
Replies:
Posted By: wardog
Date Posted: 23 Mar 2017 at 5:26am
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https://fossbytes.com/microsoft-blocking-windows-7-8-updates-amd-ryzen-intel-kaby-lake-cpu/ Are you sure it's "fully updated? Just sayin. I've known about this from Microsoft coming sooner rather than later. That load could be Windows Update hogging that core, getting no response from the WU servers. Great time to jump on the Windows 10 bandwagon  The fun never ends  |
Posted By: mxpie
Date Posted: 23 Mar 2017 at 8:26am
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" rel="nofollow - wouldn't the culprit process show in windows task manager though? alright I'll do an experiment for tomorrow. I'll completely turn updates off and see what it's doing in the morning. If core 0 is still under high load I'll unplug ethernet and see if that frees it up. I never had this issue on my last system I just upgraded from though. |
Posted By: parsec
Date Posted: 23 Mar 2017 at 11:14am
Was you last system a Ryzen system? So how can you compare the two, particularly with a completely new platform (Ryzen) that is clearly still in the early, find and fix the bugs and issues phase. Ryzen has a while to go before it has decent stabili, which is still not 100%... if that is ever reached on any system. I'm also not sure about the Windows update process continuing non-stop and using a core non-stop. The article said the Windows update process for 7 and 8.1 would get an error message: Unsupported Hardware
Your PC uses a processor that isn?™t supported on this version of Windows and you won?™t receive updates. After that, is the Windows update process continuing to try to get updates? Where is that error message being written? Multiple messages over and over on the same day? A more basic explanation is, as seen above, Unsupported hardware for Windows 8.1. One look at your screenshot tells it all. Why is the Windows core scheduler only using one core? Eight cores are available. You've got 0% usage on all the other seven cores! No wonder you have a frame rate reduction and even lag in your browser. You are effectively running a single core processor! You don't have the Core/Thread usage shown in HWiNFO, do you have two threads running in the one core? I have a mere quad core processor in my Z270 PC, and all four cores are doing a little something most of the time. I have never seen anything like your screenshot. One core out of eight is the only one active? When one core is loaded, another should immediately be used. Do you get that continuously? Are any of the other cores active at any time? Sorry, I'm not ranting at you, that is a terrible situation, I just cannot believe it!!  Task to core assignment is a Windows or software operation. Unless something else is the culprit, this is a great (terrible) example of Windows 8.1 not supporting a Ryzen system. ------------- http://valid.x86.fr/48rujh" rel="nofollow"> 
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mxpie wrote:Posted By: wardog
Date Posted: 23 Mar 2017 at 11:57am
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In that pic, click on CPU to sort till you see the process(es) that are using that 7% |
Posted By: mxpie
Date Posted: 23 Mar 2017 at 9:10pm
no one process is using that 7% which fluctuates like normal, it's just the total of various processes using 1-2% Turned windows updates off completely yesterday and this morning core 0 looked normal. I want to give it another day to be sure, but this seems most likely to be solved now. Thanks a lot wardog!  |
Posted By: wardog
Date Posted: 23 Mar 2017 at 9:31pm
Meh, don't go getting to far out front yet in thanking me. Give it a day or two to be sure then come back and post how it's been behaving. |
Posted By: mxpie
Date Posted: 24 Mar 2017 at 9:22am
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so not surprisingly it's back... I decided to see if another process monitor would show me whats loading core 0, so I tried process explorer. Please recommend another if there is a better one. It basically agrees with windows task manager from my original picture. http://img.photobucket.com/albums/v16/Yasunori/003_zpsc5gq4hz0.jpg" rel="nofollow - http://img.photobucket.com/albums/v16/Yasunori/003_zpsc5gq4hz0.jpg I closed HWinfo and loaded up MSI afterburner for a 2nd opinion on core 0 and it showed basically the same. http://img.photobucket.com/albums/v16/Yasunori/003_zpsc5gq4hz0.jpg" rel="nofollow - http://img.photobucket.com/albums/v16/Yasunori/004_zpszcclkphn.jpg" rel="nofollow - http://img.photobucket.com/albums/v16/Yasunori/004_zpszcclkphn.jpg~original Then I opened up the more comprehensive task manager window and something interesting there. http://img.photobucket.com/albums/v16/Yasunori/005_zpsmuvwbdhg.jpg" rel="nofollow - http://img.photobucket.com/albums/v16/Yasunori/005_zpsmuvwbdhg.jpg~original It seems to be showing the same load on core 0 in the graph but only says ~7% core usage from "system interrupts" so back to square one. Hwinfo and my gaming performance confirm core 0 is loaded, yet task manager and process explorer say nothing is using more than 10% total load anywhere... |
Posted By: wardog
Date Posted: 24 Mar 2017 at 9:28am
http://www.makeuseof.com/tag/fix-high-cpu-usage-caused-system-interrupts/ |
Posted By: mxpie
Date Posted: 24 Mar 2017 at 10:28am
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based on some of the things the article suggests I downloaded latencymon and this is what it reports http://img.photobucket.com/albums/v16/Yasunori/006_zpscoabmunq.jpg" rel="nofollow - http://img.photobucket.com/albums/v16/Yasunori/006_zpscoabmunq.jpg~original I changed power setting back to High Performance based off it's suggestion but issue persists. I think I tried this before when I first noticed the issue. it's final suggestion "check for BIOS updates" of course I'm eagerly awaiting. I'm starting to thing this is just a BIOS issue in the end. but I just don't know why I'm the only fool on the interwebs that seems to be having this issue on their new Ryzen system |
Posted By: wardog
Date Posted: 24 Mar 2017 at 11:03am
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storport.sys???? You stated in your first post ""Windows 8.1 new install, fully updated."" I'm beginning to NOT believe that   |
Posted By: wardog
Date Posted: 24 Mar 2017 at 11:49am
Maybe a reprieve from my ""I'm beginning to NOT believe that   "Have you installed the ""AMD all in 1 driver ver:16.50.2601"" available from the MBs download page? http://www.asrock.com/MB/AMD/Fatal1ty%20AB350%20Gaming%20K4/index.asp |
Posted By: mxpie
Date Posted: 24 Mar 2017 at 9:25pm
" rel="nofollow -
I downloaded and installed everything from asrock's support page and AMD's official ryzen driver package. I do not have any 3rd party add on cards or anything, just my radeon with new drivers installed for it too.
yessir, on day one. But I went back yesterday to recheck if I missed something or if a new updated driver was available. Allin1 shows my installed ver 16.50 and recommends a version 17.XX. I didn't have time before leaving for work to install this but I will later this afternoon. I may have discovered what's initially triggering this issue. It seems to happen shortly after I use my external hard drive. edit: more confirmation on this. A member of overclock.net just posted about the same issue and said they noticed it happened when they plugged in an xbox controller. |
Posted By: parsec
Date Posted: 24 Mar 2017 at 10:53pm
Some driver installation packages, which we can see is the same version for Windows 7, 8.1, and 10 on your board's download pages, will actually install different versions depending upon the OS version being used. The only way to tell what is actually installed is to check Windows Programs and Features. Tell us about this external hard drive. What is the interface, I would think it is USB? The storport.sys driver being used as part of the USB interface? I'm still curious about the core usage, which seems better in your later screenshots. Do you see multiple cores being used, which should happen all the time? Also, you have no comment about Microsoft saying no support for Ryzen with Windows 8.1? Also sorry to say, but how can your Windows 8.1 installation be fully updated when no (more) updates are coming from Microsoft? It is ridiculous for the Win 8.1 Update program to get (supposedly) messages that no updates will be provided, and that Ryzen is not supported hardware. Meanwhile, the Win 8.1 update service apparently just keeps asking for updates, gets turned down, and tries again, endlessly. Yes, that's what I call unsupported software.  ------------- http://valid.x86.fr/48rujh" rel="nofollow">
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Posted By: mxpie
Date Posted: 25 Mar 2017 at 12:33am
" rel="nofollow -
when you open the allin1, its an app like interface with a list of drivers to download individually so it's clear what is being installed.
It's a USB 3.0 dock like this: https://www.newegg.com/Product/Product.aspx?Item=0VN-0003-000F6 I looked up storeport but haven't gotten very far yet. I cannot disable it or end the task.
yes the cores still fluctuate, it's just the screenshot was taken exactly when other cores showed 0%. But it was very obvious that windows wanted to load as much as it could on core 0 even while it was idling at 70%+ launching programs would lag as well as games.
well since day 1 people have been testing Ryzen with 7 and 10. some say it runs better on 7 even though it is unsupported. 8.1 is more like 10 than 7 so it seems far fetched that it is simply an 8.1 issue. There isn't much driver related I need from Microsoft anyway as it's mostly asrock and amd. Asrock still has 8.1 x64 OS selection under support downloads. The "fully updated" was more on the security and .net framework side. The one other guy I've seen with this issue, I've PM'd him and waiting on a response. I'll ask him which OS he has, but I'll bet hes on 10. |
Posted By: wardog
Date Posted: 25 Mar 2017 at 1:28am
I'm at a loss here for not having a Ryzen system. The allinone is >1000Mb and shouldn't be downloading anything. I have to run out for a quick one. When I get back I'll execute the Ryzen allinone from you boards download page to investigate. |
Posted By: wardog
Date Posted: 25 Mar 2017 at 1:29am
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" rel="nofollow - Hmmmm ....... You are executing the allinone as Administrator, right? |
Posted By: mxpie
Date Posted: 25 Mar 2017 at 2:01am
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honestly I'm speaking from memory about the allinone. I havent looked at it since I first installed everything 2 weeks ago. Unless I'm confusing it with another AMD program. I remember one that looked like the AMD crimson relive UI and had various drivers to click on and install. I was stressed to the max that day, so I wouldn't be surprised if my memory is confused. I downloaded the program again this morning before work and will re-investigate it later this afternoon to see if I missed something. |
Posted By: mxpie
Date Posted: 25 Mar 2017 at 8:47am
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OK so
I ran allinone again and it is the same program I remember. I downloaded it from AMD originally, the
Ryzen chipset drivers package. It loads with a crimson like UI and has a list of various drivers to click. Each one you can mouse over and it will tell you if you have the most up to date version installed. I'm all up to date. Also I got some information from the guy I PM'd who is having the same issue. He has the MSI X370 Titanium and is on windows 10. So it's not exclusively an 8.1 or Asrock thing. |
Posted By: parsec
Date Posted: 25 Mar 2017 at 11:39am
" rel="nofollow -
We have a misunderstanding/miscommunication here, about what "fully updated" means. This was at least in part caused by the Windows Update process for 8.1 seeming to cause the high load on core 0, and that as we saw, Microsoft announcing that Ryzen is unsupported hardware for Windows 7 and 8.1. In the first several posts on page one of this thread, we talked about Windows update. That was what we were assuming was meant by fully updated. A Windows update could be anything from a timezone change in Asia, to a currency change in Europe (??or £ for example), or a change to the task/core scheduler in Windows. Which BTW, AMD has said is not needed. OTOH, you meant by fully updated, the AMD drivers. I downloaded and looked at some of the files in the AMD all in 1 driver ver:16.50.2601 package.We can see that AMD provides drivers for Windows 7 and Windows 10. In some cases the Windows 7 drivers are used with Windows 8.1, and in others Windows 8.1 driver support does not exist (RAIDXpert2). The main thing is, AMD provides Windows 7 and to varying degrees, Windows 8.1 support, in the All in one driver package. OTOH, this being the true All In One driver package, meaning EVERY supported AMD platform, we might say we don't know which drivers belong to Ryzen. Regardless, it looks like only Microsoft is saying only Windows 10 supports Ryzen. That might be just a way to push Windows 10 down Ryzen user's throats. Among other ways, like no Windows updates for 7 or 8.1. I wonder if the problem here is the FMA3 instruction bug found in Ryzen, to be fixed in an upcoming UEFI/BIOS CPU microcode update that AMD will distribute to mother board manufactures in April or May? ------------- http://valid.x86.fr/48rujh" rel="nofollow">
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Posted By: Zaccyi
Date Posted: 08 Apr 2017 at 8:50pm
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" rel="nofollow - Anyone found a fix to this issue yet? I appear to also have the same issue as mxpie. Whenever I plug in my external USB hard drive, plugged directly into the motherboards??USB port (I've tried with 2 different USB hard drives, as well as a thumb drive), Core 0 fluctuates between 70 ??85% load. Every so often the system lags and freezes (which can be around 10 seconds frozen). I can also see the effects when I'm playing a movie when it stutters. I had the issue with Bios v1.40, then I updated to Bios v2.20 to see if it would fix the issue but I still get the issue happening. When I eject the external hard drive I still get the high load on Core 0. If I reboot with the hard drive plugged in, the issue goes away. I have installed the AMD all in 1 driver v16.50.2601, and also tried installing the new released AMD balanced power plan for Ryzen processors. PC system: Ryzen 1700 Asrock Fatal1ty AB350 Gaming K4 - BIOS v2.20 Windows 10 - new install with Ryzen CPU. AMD Ryzen Balanced plan used (although I had the issue before as well using the High performance plan) Process explorer, HWINFO & Resource monitor screenshots: http://i1259.photobucket.com/albums/ii549/Zaccyi/Screenshot_1_zpssbnbwcke.jpg Thanks! |
Posted By: wardog
Date Posted: 08 Apr 2017 at 11:19pm
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" rel="nofollow - Installed the Ryzen Power Plan and also selected it as the Power Plan? |
Posted By: Zaccyi
Date Posted: 09 Apr 2017 at 7:19am
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Yes, the Ryzen balanced plan is selected: http://i1259.photobucket.com/albums/ii549/Zaccyi/Screenshot_3_zpsgvipco2h.jpg" rel="nofollow - http://i1259.photobucket.com/albums/ii549/Zaccyi/Screenshot_3_zpsgvipco2h.jpg Before the new Ryzen plan was released I had it on the High performance plan.
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Posted By: twf85
Date Posted: 09 Apr 2017 at 11:02am
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In case the reason you're still holding onto 8.1 is because you missed the cutoff last year to upgrade to 10, here's a link that should help you get a legitimate installation on your new hardware, for free: http://www.microsoft.com/en-us/accessibility/windows10upgrade" rel="nofollow - https://www.microsoft.com/en-us/accessibility/windows10upgrade I've used it three times now on computers I've built for other people. Thing is, I'm not sure if you're aware, but Windows 8/8.1 is about as big a disappointment for Microsoft as Windows Vista was. Not only do the NOT want to support the handful of people who for some odd reason didn't upgrade away from that confusing mess, but they REALLY do not want to support Win 7 users. They put up the deadline, but by leaving this loophole open, I believe they are trying to convert as many people from 7/8 as possible. Do yourself, and your sanity, a favor. Install the upgrade. There are still a substantial amount of users on Win 7, so I guess you could go that route, too, but expect your complaints to fall on deaf ears at AMD if things don't work right. They haven't announced a cut-off for the link above, but I wouldn't wait a second longer were I you. Even as buggy as 10 has been, it's still better than what you're using now. ------------- https://valid.x86.fr/qc9lr0" rel="nofollow"> 
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Posted By: parsec
Date Posted: 09 Apr 2017 at 12:57pm
You say this happens just with a USB flash drive connected to a USB 3.0 port? I don't have the same Ryzen board as you do, but I've had a 64GB USB flash drive connected to the PC for ten minutes, and my Core 0 usage has not even reached 25%. Please verify what you wrote earlier, this is a copy and paste from your first post: When I eject the external hard drive I still get the high load on Core 0. If I reboot with the hard drive plugged in, the issue goes away. So this problem only happens if you connect an external USB drive to the PC after it has booted? The chipset of your Ryzen board and mine are different, and the chipset is supplying the USB 3.0 and 3.1 ports. I have two entries in Device Manager: "AMD USB 3.0 eXtensible Host Controller - 1.0 Microsoft), and another the same except for the USB 3.1 controller. Both use the Windows 10 USBXHCI.sys driver. Do you have similar entries? ------------- http://valid.x86.fr/48rujh" rel="nofollow">
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Posted By: Zaccyi
Date Posted: 09 Apr 2017 at 2:55pm
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If I cold boot with an external hard drive plugged into the USB3 port, I don't get the high usage on Core 0 and the PC is as normal. If I cold boot without the external hard drive plugged in, and then after it has booted, when I plug in the external hard drive to the USB3 port, Core 0 has the high usage again. When I then do a reboot after this (with the external hard drive still plugged in), the high usage goes away and the PC is as normal. Then, when I eject the external hard drive and plug it back in, Core 0 has high usage again. If I then put the PC to sleep, and resume from sleep, Core 0 still has high usage. This is trying with both USB2 & USB3 external drives. I am not sure about other types of USB devices. So what you said sounds correct, in that the problem seems to only happen when I connect an external USB drive after the PC has booted. My device manager has the same entries as the one you mentioned: USBXHCI.SYS - AMD USB 3.0 eXtensible Host Controller - 1.0 (Microsoft) USBXHCI.SYS - AMD USB 3.1 eXtensible Host Controller - 1.10 (Microsoft) http://i1259.photobucket.com/albums/ii549/Zaccyi/Screenshot_4_zpsv35hh1ao.jpg" rel="nofollow - http://i1259.photobucket.com/albums/ii549/Zaccyi/Screenshot_4_zpsv35hh1ao.jpg
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Posted By: toytown
Date Posted: 11 Apr 2017 at 2:15am
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I also have the problem using an Asrock AB350 Pro4 (1.40 Bios) motherboard. It happens whenever i plug in a usb device like my USB Microphone or USB SD Card reader. Once its plugged in then the system interrupts will use core0 until i reboot windows, unplugging all of my USB devices inc keyboard/mouse does not fix it. Plugging these devices in before windows boots, makes them work just fine. Unplugging them and plugging the same device back in 100% usage on core0 due to system interrupts. I've tried closing all applications and shutting down almost all windows services in an attempt to find out if i could resolve the issue with a reboot, sadly i cant. |
Posted By: Zaccyi
Date Posted: 11 Apr 2017 at 7:34pm
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" rel="nofollow - I just tried to plug in a Xbox 360 Wireless Gaming Receiver into the USB3 port on the motherboard and the high CPU usage on Core 0 also occurs (varying between 70% - 85%), with the System interrupts on Resource monitor showing it's using 5% of the CPU. So it looks like the issue does not just occur with external drives. Would the motherboard be faulty or would a new BIOS update fix this? I am already on BIOS v2.20.
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Posted By: wardog
Date Posted: 11 Apr 2017 at 7:45pm
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" rel="nofollow - Have all of you installed the AMD All-In-One driver(s) from your boards download pages? |
Posted By: Zaccyi
Date Posted: 11 Apr 2017 at 8:18pm
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Yes, I have already installed the AMD all in 1 driver ver16.50.2601 from my motherboards download page (Asrock Fatal1ty AB350 Gaming K4). I have a screenshot of the AMD all in 1 driver ver16.50.2601 (also with a HWINFO screenshot showing the usage when I plugged in the Xbox 360 Wireless Gaming Receiver): http://i1259.photobucket.com/albums/ii549/Zaccyi/Screenshot_5_zpsi2exc4c6.jpg" rel="nofollow - http://i1259.photobucket.com/albums/ii549/Zaccyi/Screenshot_5_zpsi2exc4c6.jpg
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Posted By: toytown
Date Posted: 12 Apr 2017 at 12:40am
Also have the AMD all in 1 driver version 16.60 installed as seen in this picture
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Posted By: mxpie
Date Posted: 20 Apr 2017 at 1:21am
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" rel="nofollow - are you all on BIOS 2.20 now? I'm still on 1.40 but was planning to update this weekend. Overall I was mostly waiting for the bigger official update coming next month that is supposed to greatly improve RAM compatibility. Hoping some other quirks like this might get ironed out with it as well. My workaround for this stuck high core 0 issue in the mean time has been to just use my external drive dock with a separate USB card. like this  It's not 3.0, but the drive I use isn't fast enough to really matter anyway. |
Posted By: Zaccyi
Date Posted: 23 Apr 2017 at 7:21pm
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Hi mxpie, I'm now on BIOS L2.41 now (this was sent to me from ASRock tech support as I emailed them for assistance). After installing this BIOS and installing Windows 10 from scratch again (Creators update) I don't appear to have the issue any longer. I previously updated to BIOS 2.22, which resolved the issue except for when I put the PC to sleep and woke it (which then resulted in the high Core 0 CPU usage). If I plugged in a USB device without sleeping the issue was resolved (although in this case I did not install Windows 10 from scratch, if I did, it could be that this would also have resolved the waking from sleep high Core 0 CPU usage).
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Posted By: mxpie
Date Posted: 25 Apr 2017 at 1:02am
Thanks for the update Zaccyi thats good to hear. I kinda suspected the issue would be resolved eventually with the right BIOS revision. |
Posted By: day0
Date Posted: 20 Aug 2017 at 6:19am
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Thanks for the info guys. I have an MSI B350 Tomahawk, driver version 17.10, same issue, so it's not a motherboard-only thing. I was afraid it was my ram that gave me problems earlier, but I'm not sure. I already tried setting high performance on windows and nvidia control panel, but it didn't made any effect. Also, disabling HPET, SVM and core performance boost also doesn't fix the issue. I have not related usb to this issue, because it seemed random, but now that you mentioned it, when I boot up my pc the motherboard recognizes my mouse, but sometimes windows doesn't, so I have to unplug and plug it again. Maybe it's related to this issue. |
Posted By: parsec
Date Posted: 20 Aug 2017 at 8:53am
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" rel="nofollow - So no one in this thread has heard of the Ryzen Power Plan, whose purpose was to alleviate the core scheduling issue that Windows has (had) with Ryzen? If you are installing the newer AMD chipset drivers, you should also be getting the Ryzen Balanced power plan. Yes, I saw this issue early on in my use of my Ryzen system, but that is long gone. If you are using Windows 10, and get continuing updates, the core scheduling issue does not exist, even if you don't use the Ryzen power plan. This issue is not a UEFI/BIOS issue. If you are using Windows 7, which is not officially supported by Ryzen, then you may still have this issue, unless MSoft has an Ryzen update for Windows 7. I doubt that it does. Issues with USB devices again are normally related to Windows 7 use, and the fact that only USB 3.0 drivers are used for ALL of the USB ports (2.0 and 3.0) on Ryzen boards, and all Intel boards starting with the 100 series chipsets. Windows 7 does not have a native USB 3.0 driver, so one must be included with Windows 7, or installed after a Win 7 installation, using a PS2 keyboard, with the PS2 emulator option enabled in the UEFI for a USB mouse. ------------- http://valid.x86.fr/48rujh" rel="nofollow">
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