CPU downclocking during Prime95 run.

Page 2 of 4 FirstFirst 1234 LastLast
  1.    24 Apr 2018 #11

    I've just passed around 14 continuous runs of Asus RealBench and no sign of any WHEA or bugcheck's in Event Viewer...
      My ComputerSystem Spec

  2. Cliff S's Avatar
    Posts : 22,987
    Win10 Pro, Win10 Pro N, Win10 Home, Win10 Pro Insider Fast Ring, Windows 8.1 Pro, Ubuntu
       24 Apr 2018 #12

    Kol12 said: View Post
    Hmm perhaps I have the version 26.6 with AVX, that might explain the throttling? VRM hit tops 54C under the Prime95 load which seems acceptable. Package hit 76C but only on one core while the rest were around 70C.

    Are you using the Bios power limits?

    Edit: Misread your reply, there is no version 26.6 with AVX. I am using version 26.6...

    The CPU isn't downclocking when I have the power limits increased, however the last time I ran this overclock with the power limits on Auto the CPU did not drop it's clocks/throttle at all while gaming.


    That is the correct one, you do not want AVX, that's why 26.6 has been recommended.

    My 5.0 BIOS settings:

    Ai Overclock Tuner [XMP]
    XMP [XMP DDR4-3000 15-17-17-35-1.35V]
    BCLK Frequency [100.0000]
    ASUS MultiCore Enhancement [Disabled]
    SVID Behavior [Auto]
    AVX Instruction Core Ratio Negative Offset [3]
    CPU Core Ratio [Sync All Cores]
    1-Core Ratio Limit [50]
    2-Core Ratio Limit [50]
    3-Core Ratio Limit [50]
    4-Core Ratio Limit [50]
    5-Core Ratio Limit [50]
    6-Core Ratio Limit [50]
    BCLK Frequency : DRAM Frequency Ratio [Auto]
    DRAM Odd Ratio Mode [Enabled]
    DRAM Frequency [DDR4-3000MHz]
    Xtreme Tweaking [Disabled]
    TPU [Keep Current Settings]
    CPU SVID Support [Disabled]
    CPU Core/Cache Current Limit Max. [255.50]
    Ring Down Bin [Auto]
    Min. CPU Cache Ratio [47]
    Max CPU Cache Ratio [47]

    BCLK Aware Adaptive Voltage [Disabled]
    CPU Core/Cache Voltage [Manual Mode]
    - CPU Core Voltage Override [1.400]
    DRAM Voltage [1.3500]
    CPU VCCIO Voltage [Auto]
    CPU System Agent Voltage [Auto]
    PLL Termination Voltage [Auto]
    PCH Core Voltage [Auto]
    CPU Standby Voltage [Auto]

    Intel(R) SpeedStep(tm) [Enabled]
    Turbo Mode [Enabled]
    CPU C-states [Auto]
    CFG Lock [Disabled]
    Intel(R) Speed Shift Technology [Enabled]
    Number of P states [0]

    Intel(R) SpeedStep(tm) [Enabled]
    Turbo Mode [Enabled]
    Long Duration Package Power Limit [4095]
    Package Power Time Window [Auto]
    Short Duration Package Power Limit [4095]
      My ComputersSystem Spec

  3.    24 Apr 2018 #13

    While I was googling der8auer's Maximus X Hero overclock guide popped up: ASUS MAXIMUS X HERO - Overclocking Test and Guide 8700K (en) - YouTube

    My Bios settings were already very similar bar all of my power limit settings were still on Auto. Also my BCLK Aware Adaptive Voltage setting was on Auto. If you disable CPU SVID Support you won't get the CPU Core/Cache Voltage Adaptive mode.

    @Cliff Was there any settings you had to tweak to get the Max CPU Cache Ratio stable at 4700Mhz? I think stock is 4400Mhz.

    Are there any other favorite CPU stability test's around here? Polo has suggested running Cinebench and Realbench multiple times. So far I've had no WHEA errors with multiple runs of Cinebench and Realbench. Maybe it was issue with the previous OS installation, or possibly related to AI Suite maybe?
      My ComputerSystem Spec

  4. Cliff S's Avatar
    Posts : 22,987
    Win10 Pro, Win10 Pro N, Win10 Home, Win10 Pro Insider Fast Ring, Windows 8.1 Pro, Ubuntu
       24 Apr 2018 #14

    @Cliff Was there any settings you had to tweak to get the Max CPU Cache Ratio stable at 4700Mhz? I think stock is 4400Mhz.
    I always set my cache ratio to 300MHz lower than my CPU multiplier. If it's stable, I leave it there.
    For example: if I use 4.7GHz OC I set cache to 4.4.

    When not over clocking, I just leave it at Auto.
      My ComputersSystem Spec

  5.    24 Apr 2018 #15

    Cliff S said: View Post
    I always set my cache ratio to 300MHz lower than my CPU multiplier. If it's stable, I leave it there.
    For example: if I use 4.7GHz OC I set cache to 4.4.

    When not over clocking, I just leave it at Auto.
    Do you not run 5.0Ghz daily?

    Edit: Since voltage affects and is applied to both the CPU and Cache it probably makes sense to take advantage of that voltage on the Cache.
      My ComputerSystem Spec

  6. Cliff S's Avatar
    Posts : 22,987
    Win10 Pro, Win10 Pro N, Win10 Home, Win10 Pro Insider Fast Ring, Windows 8.1 Pro, Ubuntu
       24 Apr 2018 #16

    For 5.0 daily(when not benchmarking) I use full C-States and I set the CPU Cache so;
    Ring Down Bin [Auto]
    Min. CPU Cache Ratio [47]
    Max CPU Cache Ratio [47]

    Important is Ring Down Bin set to Auto, for stability, when the CPU Core Ratio is downclocked from using C-States.
      My ComputersSystem Spec

  7.    24 Apr 2018 #17

    1 hour 13 mins Prime95 pass and no sign of any bugcheck's or WHEA errors. The WHEA errors experienced a few weeks ago are beginning to seem slightly mysterious...

    Click image for larger version. 

Name:	Screenshot (31).png 
Views:	3 
Size:	498.3 KB 
ID:	186020
    Click image for larger version. 

Name:	Prime95 25-04-18.png 
Views:	5 
Size:	698.2 KB 
ID:	186021
      My ComputerSystem Spec

  8. Cliff S's Avatar
    Posts : 22,987
    Win10 Pro, Win10 Pro N, Win10 Home, Win10 Pro Insider Fast Ring, Windows 8.1 Pro, Ubuntu
       25 Apr 2018 #18

    Nice temps and no throttling, looking good:
    Click image for larger version. 

Name:	image.png 
Views:	22 
Size:	107.0 KB 
ID:	186050
      My ComputersSystem Spec

  9.    25 Apr 2018 #19

    Cliff S said: View Post
    For 5.0 daily(when not benchmarking) I use full C-States and I set the CPU Cache so;
    Ring Down Bin [Auto]
    Min. CPU Cache Ratio [47]
    Max CPU Cache Ratio [47]

    Important is Ring Down Bin set to Auto, for stability, when the CPU Core Ratio is downclocked from using C-States.
    I know your at work now Cliff, but just saw your 5.0 settings. Quite different than mine in a few settings, so I thought I would post mine for you to take a look at. These are very stable for me. I also don't recommend using Adaptive mode at all. Either Manual or Offset modes. ( Thanks to Steve) I always use Manual mode when I am benchmarking. :)

    My 5.0 BIOS settings:

    Ai Overclock Tuner [XMP]
    XMP [XMP DDR4-3200 14-14-14-34-1.35V]
    BCLK Frequency [100.7000] <--- This is optional, I just always give it a bump.
    ASUS MultiCore Enhancement [Auto]
    SVID Behavior [Auto]
    AVX Instruction Core Ratio Negative Offset [0]
    CPU Core Ratio [Sync All Cores]
    1-Core Ratio Limit [50]
    2-Core Ratio Limit [50]
    3-Core Ratio Limit [50]
    4-Core Ratio Limit [50]
    5-Core Ratio Limit [50]
    6-Core Ratio Limit [50]

    BCLK Frequency : DRAM Frequency Ratio [Auto]
    DRAM Odd Ratio Mode [Enabled]
    DRAM Frequency [DDR4-3228MHz]
    Xtreme Tweaking [Disabled]
    TPU [TPU II] <------------ This is optional also. I've always used this setting. Water Cooled CPU
    CPU SVID Support [Disabled]
    CPU Core/Cache Current Limit Max. [255.50]
    Ring Down Bin [Auto]
    Min. CPU Cache Ratio [47]
    Max CPU Cache Ratio [47]
    BCLK Aware Adaptive Voltage [Auto]
    CPU Core/Cache Voltage [Offset Mode]
    - Offset Mode Sign [+]
    - CPU Core Voltage Offset [0.210]

    DRAM Voltage [1.3500]
    CPU VCCIO Voltage [Auto]
    CPU System Agent Voltage [Auto]
    PLL Termination Voltage [Auto]
    PCH Core Voltage [Auto]
    CPU Standby Voltage [Auto]
    Intel(R) SpeedStep(tm) [Auto]
    Turbo Mode [Enabled]
    Long Duration Package Power Limit [Auto]
    Package Power Time Window [Auto]
    Short Duration Package Power Limit [Auto]
      My ComputersSystem Spec

  10.    27 Apr 2018 #20

    My CPU's not holding 4.9Ghz while gaming. What could this be?

    Click image for larger version. 

Name:	4.9Ghz Gaming.png 
Views:	3 
Size:	120.4 KB 
ID:	186285
      My ComputerSystem Spec


 
Page 2 of 4 FirstFirst 1234 LastLast

Related Threads
Performance & Maintenance Prime95 - Stress Test Your CPU in Tutorials
Prime95 - Stress Test Your CPU Prime95 is a freeware program originally designed to find new Mersenne prime numbers. Given the nature of Prime95 it is now widely used as a CPU stress testing utility to gauge the stability of a CPU,...
I've had more issues than I can count with this PC. Most recently I had a month long issue which was eventually fixed by lowering the vCore on my CPU by 0.1. I wasn't overclocking but the automatic settings in the BIOS let it creep over 1.5v...
Hi all,Over this weekend I've been testing my RAM modules due to a request I got from technical support. I use Private Internet Access VPN and if I leave my VPN running for 24 hours, at some point its process will get killed. The support told me...
I am getting BSOD instantly when running prime95,moving picture in Microsoft word or sometimes when scrolling too fast in Microsoft power point. Ran mem test with no problems temps are all at normal range I can't figure this one out, help...
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 09:54.
Find Us