Solved CPU usage dropdowns during stress test

Chulain

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Hi guys, during stress tests I have noticed strange usage dropdowns on CPU usage (which should not happen on a stress test I believe?)

It happens multiple times over several hours, no signs of overheating, GPU/mobo/CPU always below 60°.

Tried on a lower memory frequency (stock 2400) instead of the current 3200.
I have a Ryzen 5 2600 running @ stock speed

Aida64 was used for testing.
Here's a screenshot:
B4FBZ0k.jpg


As you can see on the notifcation area & task bar, there are no background apps or whatsoever. (other than the screenshot app, which I started using after noticing those dropdowns)

Also, is there a way to transfer my account to Tenforums or do we create a new account? Apologies for posting here, if this disturbs anyone.
 

My Computer

Computer type
PC/Desktop
OS
Win 10 Home
CPU
AMD Ryzen 5 2600
Motherboard
MSI X470 Gaming Plus
Memory
Kingstone Hyperx 2x 8GB
Graphics Card(s)
Nvidia GTX 1060
Hard Drives
Intel® 545 Series 256 GB SSD &
WDC WD20EARS-00MVWB0 2TB HDD
PSU
OCZ 550W
Case
Sharkoon Night Shark
Cooling
Cooler Master MasterLiquid ML240L
You have to create a new account on Ten Forums.

Try another stress program like CPU-Z
 

My Computers

System One System Two

  • Computer type
    PC/Desktop
    Computer Manufacturer/Model Number
    custom build
    OS
    Windows 7 HP 64
    CPU
    i5 6600K - 800MHz to 4200MHz
    Motherboard
    GA-Z170-HD3P
    Memory
    4+4G GSkill DDR4 3000
    Graphics Card(s)
    IG - Intel 530
    Monitor(s) Displays
    Samsung 226BW
    Screen Resolution
    1680x1050
    Hard Drives
    (1) -1 SM951 – 128GB M.2 AHCI PCIe SSD drive for Windows 7 and Lubuntu
    (2) -1 WD SATA 3 - 1T for Data
    (3) -1 WD SATA 3 - 1T for backup
    PSU
    Thermaltake 450W TR2 gold
    Keyboard
    Old and good Chicony mechanical keyboard
    Mouse
    Logitech mX performance - 9 buttons (had to disable some)
    Internet Speed
    500Mb/s
    Browser
    Firefox 64
    Other Info
    TinyWall firewall
  • Computer type
    Laptop
    System Manufacturer/Model Number
    Asus Q550LF
    OS
    Windows 7 Pro
    CPU
    i7-4500U 800MHz to 3.0GHz
    Motherboard
    Asus Q550LF
    Memory
    (4+4)G DDR3 1600
    Graphics Card(s)
    IG intel 4400 + NVIDIA GeForce GT 745M
    Sound Card
    Realtek
    Monitor(s) Displays
    LG Display LP156WF4-SPH1
    Screen Resolution
    1920 x 1080
    Hard Drives
    BX500 120G SSD for Windows and programs +
    1T HDD for data
    Internet Speed
    500 Mb/s
    Browser
    Firefox
    Other Info
    TinyWall firewall
Yes you just create a new account on tenforums. i.e., there is no mechanism to transfer an account from one forum to the other.

You can double check your findings on another test program, like Prime95.

I do not use Aida64. However I found there is an Aida64 Discussion Forum, and this post which might help you diagnose this issue: strange cpu clock northbridge clock readings/
 

My Computer

Computer type
PC/Desktop
OS
Windows 7 x64, Vista x64, 8.1 smartphone
CPU
Intel E8400 65W 64-bit
Motherboard
Gigabyte EP45-UD3LR
Memory
DDR2 2 x 2GB, 1GB x 2
Graphics Card(s)
XFX Radeon HD5750
Sound Card
AMD High Definition Audio; Realtek High Definition Audio
Monitor(s) Displays
iiyama prolite X2377HDS
Screen Resolution
1920 x 1080
Hard Drives
500GB 7200 rpm Seagate ST3500413AS 16MB, 500GB 5400 rpm Toshiba MQ02ABF050H 32MB, 200GB 7200 rpm Seagate ST3200820AS 8MB, 2TB 7200 rpm Western Digital WD20EZRX 64MB
PSU
Enermax Liberty Modular
Case
Antec P193 Midi Tower
Keyboard
Mionix ZIBAL 60
Mouse
Razer USB 2.0 Diamondback Mouse or Huion Graphics Tablet
Browser
Internet Explorer, Lunascape, Firefox, Opera, Avast Safezone
Ran prime95 with 15gb memory usage for 2 hours, cpu usage was steady at 100%. Is it possible that the dropdowns only occur when stress testing CPU, GPU & RAM at the same time? Should I keep digging or there's nothing to worry about?


I do not use Aida64. However I found there is an Aida64 Discussion Forum, and this post which might help you diagnose this issue: strange cpu clock northbridge clock readings/


Isn't that post about spiking clock settings? Mine seem to be fine +- 200 mhz differences at 100% usage.
There was one post on Aida64's forum that seemed nearly identical to my issue and it had a suggestion to apply stock clock settings on CPU, which I already have. On top of that I tried regular 2400 settings on my ram which did not help.
 
Last edited:

My Computer

Computer type
PC/Desktop
OS
Win 10 Home
CPU
AMD Ryzen 5 2600
Motherboard
MSI X470 Gaming Plus
Memory
Kingstone Hyperx 2x 8GB
Graphics Card(s)
Nvidia GTX 1060
Hard Drives
Intel® 545 Series 256 GB SSD &
WDC WD20EARS-00MVWB0 2TB HDD
PSU
OCZ 550W
Case
Sharkoon Night Shark
Cooling
Cooler Master MasterLiquid ML240L
My only other suggestion would be to try RMClock Utility. This software is said to detect any kind of CPU clock throttling.
 

My Computer

Computer type
PC/Desktop
OS
Windows 7 x64, Vista x64, 8.1 smartphone
CPU
Intel E8400 65W 64-bit
Motherboard
Gigabyte EP45-UD3LR
Memory
DDR2 2 x 2GB, 1GB x 2
Graphics Card(s)
XFX Radeon HD5750
Sound Card
AMD High Definition Audio; Realtek High Definition Audio
Monitor(s) Displays
iiyama prolite X2377HDS
Screen Resolution
1920 x 1080
Hard Drives
500GB 7200 rpm Seagate ST3500413AS 16MB, 500GB 5400 rpm Toshiba MQ02ABF050H 32MB, 200GB 7200 rpm Seagate ST3200820AS 8MB, 2TB 7200 rpm Western Digital WD20EZRX 64MB
PSU
Enermax Liberty Modular
Case
Antec P193 Midi Tower
Keyboard
Mionix ZIBAL 60
Mouse
Razer USB 2.0 Diamondback Mouse or Huion Graphics Tablet
Browser
Internet Explorer, Lunascape, Firefox, Opera, Avast Safezone
Done, seems okay. I'll keep it at this for now. Thanks everyone.
 

My Computer

Computer type
PC/Desktop
OS
Win 10 Home
CPU
AMD Ryzen 5 2600
Motherboard
MSI X470 Gaming Plus
Memory
Kingstone Hyperx 2x 8GB
Graphics Card(s)
Nvidia GTX 1060
Hard Drives
Intel® 545 Series 256 GB SSD &
WDC WD20EARS-00MVWB0 2TB HDD
PSU
OCZ 550W
Case
Sharkoon Night Shark
Cooling
Cooler Master MasterLiquid ML240L
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