12 Replies Latest reply on Nov 21, 2017 6:06 AM by alleyviper

R9 380 Core Clock Dropping - Windows 10 FCU 17.11.1

dreamc Nov 10, 2017 7:21 AM

Recently I updated to WIndows 10 1709 (from 1703) and started noticing some strange behavior - from time to time for a second FPS drops to approximately 20-30 (still going smooth with uniform delays between frames) for a second and then returns to normal.

This affects most applications using GPU - games and even Firefox (it uses hardware acceleration after all, however it is more slow to recover from this state).

When under high load this is also coupled with core clock going down, as you can see from the attached screenshot.

I tried updating Crimson Drivers, though I had almost the latest ones. This didn't help.

Tried cleaning drivers with DDU and reinstalling them - no good.

GPU temperature does not go higher than 65. CPU load is normal. Tried with my AV disabled.

Does anyone else have this problem?

And what can I do in this situation?

Describe your system:

AMD Graphics Card
- MSI R9 380
Desktop or Laptop System
- Desktop
Operating System
- Windows 10 64bit 1709
Driver version installed
- Radeon Software Crimson Edition 17.11.1
Display Devices
- DELL U2414H, 60 Hz over DisplayPort
- Samsung UE55MU6195 UHD TV over HDMI
Motherboard + Bios Revision
- ASUS Z97-AR, Bios Version 2801
CPU/APU
- Intel Core i5 4670
Power Supply Unit Make, Model & Wattage
- Corsair 650W (do not remember the exact model)
RAM
- 2x 8GB in dual channel

Message was edited by: Matt B We have updated the title of this discussion with relevant details to better describe your issue.

i188^cimgpsh_orig.png 286.3 KB

Re: Core clocks goes down randomly on Windows 10 1709

kingfish Nov 7, 2017 9:29 AM (in response to dreamc)

Power Limit? That would be my guess...
AMD graphics performance
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- Re: Core clocks goes down randomly on Windows 10 1709
  
  dreamc Nov 7, 2017 9:50 AM (in response to kingfish)
  
  All the settings are default (and even before updating to 1709 I had all on default, however there was no such problem).
  And I hope GPU does not try to lower it power state under High load...
  
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  - Re: Core clocks goes down randomly on Windows 10 1709
    
    kingfish Nov 7, 2017 10:02 AM (in response to dreamc)
    
    It will definitely throttle the card.
    
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    - Re: Core clocks goes down randomly on Windows 10 1709
      
      dreamc Nov 7, 2017 12:12 PM (in response to kingfish)
      
      "Definitely throttling the card" under load MUST be considered a not desired behavior and fixed.
      This did not affect me in any way before 1709 update. Testing it right now.
      
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    - Re: Core clocks goes down randomly on Windows 10 1709
      
      dreamc Nov 7, 2017 8:05 PM (in response to kingfish)
      
      Unfortunately, this didn't help.
      I attached a couple of screenshots, where you can see some spikes in core clock.
      
      Is there anything else to check?
      
      2.PNG 163.2 KB
      
      1.PNG 188.7 KB
      
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      - Re: Core clocks goes down randomly on Windows 10 1709
        
        alleyviper Nov 8, 2017 7:32 AM (in response to dreamc)
        
        Please try to raise power limit to something like 20% (or above, if that's not max). This is to check if there's any change to those clocks while gaming, in case it's simply max available TDP kicking at default 0%.
        Also, expand the setting under "power limit" (arrow at the right) to check what lies there or change the interface to a more modern one. Just in case it's not a temp target that is set very low.
        
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        Re: Core clocks goes down randomly on Windows 10 1709
        
        dreamc Nov 8, 2017 8:22 PM (in response to alleyviper)
        
        Where do I set the power limit? Crimson WattMan allows setting only _specific_ voltage for every state without specifying limits.
        And... well... I'm not sure this is the right way to do it... As even browser (as I already stated) can "drop FPS" for a couple of seconds.
        
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        Re: Core clocks goes down randomly on Windows 10 1709
        
        alleyviper Nov 14, 2017 8:21 AM (in response to dreamc)
        
        My previous response was related to the MSI Afterburner screenshots that seem gone now. On them Power Limit was at 0%, I wasn't suggesting to change voltages. So I told you to raise power limit to ~20% and test gaming again to see if the card will keep higher clocks.
        
        EDIT: Nvm about the screenshots, they're on your post. I couldn't seem them due to forum view.
        
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        Re: Core clocks goes down randomly on Windows 10 1709
        
        dreamc Nov 9, 2017 4:32 PM (in response to alleyviper)
        
        Oh... I didn't get it at first, as I do not use Afterburner for anything except for graphs (and those screenshots are still there). Basically I do not over/under clock my hardware at all.
        
        However, I decided to test what you said and it didn't help - still periodic lags. Attached a screenshot.
        
        3.PNG 155.4 KB
        
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Re: Core clocks goes down randomly on Windows 10 1709

dreamc Nov 14, 2017 8:14 AM (in response to dreamc)

I found the culprit of this one.
The moment I disconnect the second display (in this case the UHD TV), everything comes back to normal - no more UI lags, no more strange core clock drops, and even memory is now automatically downclocked when under low load (when the TV is plugged in, the memory clock always stays on 14xx mhz).

Why is this the problem?
I can't imagine this GPU to not be able to handle showing a static desktop. Or is it Windows 10 issues?
Is there anything I can do to make this work?
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- Re: Core clocks goes down randomly on Windows 10 1709
  
  dreamc Nov 19, 2017 11:06 AM (in response to dreamc)
  
  I'm still looking for any solutions or who should I contact regarding this issue.
  Any help is appreciated.
  
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- Re: Core clocks goes down randomly on Windows 10 1709
  
  alleyviper Nov 21, 2017 6:06 AM (in response to dreamc)
  
  To mitigate the problem, have you tried to use alternative connections to check if for any reason the card changes behavior? I've seen many reports of stuck high memory clocks in the past when a secondary monitor is connected with a decent resolution, but never about lowered clocks. Maybe try to connect the hdmi TV to a DP via adapter on your card to see if anything changes, and do something similar with your monitor to check for combinations even if temporarily (like connecting it to a DP or DVI (or even dvi-i>vga port if its using hdmi). Also, you could try requesting the last vbios from its manufacturer. Good luck!
  
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