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X299 Dark Stability Overclock Notes/Info

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geninfo
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2017/12/28 19:25:13 (permalink)
Info on X299 Dark overclocking with example build.
Please help with questions at end.
Suggestions welcome.
# indicates later post with more info.
 
Refer
Kingpin Dark Guide
Intel Skylake-X Data Sheet
Intel Skylake-X Spec Update
Mesh Network Theory
Mesh Network Die Analysis
 
Goal
Stable overclock for creative/scientific/deep-learning workstation.
 
Status
4.5Ghz All 18 Cores Constant
3200 DDR4 16-18-18-36 Full Speed
Mesh Ratio 30
~82C @ Prime95 56K load
Confirmed Stable Non-AVX (AVX Testing Later)
Evaluating candidate final stable configuration with case, Titan V, and 3600 16-18-18-36 memory overclock. #75
Also AMD Radeon WX Pro 7100 in tandem with Titan V. #90
 
Build
X299 Dark On Included Bench Stand
EVGA Supernova 1200 P2 (Eco Mode ON)
7980XE (delid, 4.3Ghz bin)
EVGA CLC 280 (USB to USBHDR1/2, Block Pump Fan Cable To CHA_FAN, Radiator Fans Direct To CPU1_FAN And CPU2_FAN)
Corsair Dominator 3200 64GB CMD64GX4M4C3200C16
Samsung 960 Pro 1TB (Slot PM1)
EVGA 1080 TI Kingpin (Slot PE1; Tentative, Titan V Later)
Gigabit Ethernet To Intel i219 NIC
Thermal Grizzly Conductonaut Between IHS and CLC Waterblock #31-35
 
BIOS
1.06 (on BIOS2)
Vcore: Override 1.70
CPU Multiplier: 45x
AVX2 Negative Offset: -4 (Untested)
AVX3 Negative Offset: -6 (Untested)
Memory: XMP Profile 1 (DDR4-3200 16-18-18-36-1.35V)
VCCIO: 1.166
 
OS
Windows 10.0.16299.192
 
Driver
NVIDIA Driver 388.71
Default Windows NVM Driver
 
Software
MemTest86 7.4 (USB Bootable)
EVGA Flow Control 2.0.4.0 (Firmware Version 2.10.0.0) (see Note)
HWiNFO64 5.7-3300
Prime95 29.4,build 5 #44
Furmark 1.19.1.0
Iometer 1.1.0 (#18)
 
Config
Nvidia Global 3D Settings Power Management Mode = Prefer maximum performance
Windows Power Plan = High Performance
 
Note
Overnight Prime95 8-4096 FFT in-place 5 minutes per test pass (two times through all tests).
 
HWiNFO64 observes 14C+ delta between heavily loaded hottest/coldest cores.
 
HWiNFO64 confirms intended frequency drop when AVX enabled in Prime 95.
--
Disable AVX in Prime95 with these entries BEFORE [Worker #1] line in local.txt configuration file:
CpuSupportsAVX=0
CpuSupportsAVX2=0
CpuSupportsAVX512F=0
---
CPU clocks down to AVX2 offset, not AVX3 (AVX-512) offset when Prime95 running without AVX disabled.
 
Running cooler radiator fans on high load drops CPU temp 12C immediately.
Coolant temperature does not immediately respond.
EVGA Flow Control shows fluid temp TO radiator, not FROM radiator.
Activating fans may drop fluid temp FROM radiator to CPU, which coolant temperature sensor does not register.
 
BIOS provides better fan control than EVGA Flow Control. #30
EVGA Flow Control fan curve maximum too limiting for Skylake-X.
Wired CLC pump to CHA_FAN for pump power.
Wired CLC radiator fans to CPU_FAN1 and CPU_FAN2.
Running stock SMART profiles based on CPU temp in BIOS for radiator fans.
 
Topic
Titan V Needs Companion Video Card - if compute matters #89
AMD WX Pro 7100 Works As Companion - handles displays while Titan V computes #90
X299 Dark LED Behavior Chart - what turns on when building #91
Choosing Good Ram - frequency/latency matters, charts provided #83
Tentative Benchmarks - results close to final CPU & GPU overclock #60-61
Liquid Metal Application - enabled 45X CPU multiplier overclock thermals. #31-35
Phantom Throttling - detected when increasing Mesh Ratio to 32 from default 30 #50
WHEA CPU Internal Parity Error -  indicated overclock instability at 45X CPU multiplier #57
BIOS Default Stock Testing - observation from Furmark crash troubleshooting #59
Dark BIOS 1.05 Issues - not supporting XMP and memory overclocks #74
Mesh Ratio Overclock Troublesome - better to focus on CPU and memory overclocks #75
Titan V And Kingpin 1080 Ti Direct Comparison On Same Board Simultaneously
Dark Case Mounting Challenge - VRM heatsink gets in way #4-8
Professional Workstation Benchmarking - using SPECwpc #76
Use Samsung NVMe Driver - Standard Windows NVMe driver terrible write speed #77
SSD Firmware Matters - slight performance differences in firmware for SSD #78
Disabling Fast Startup - optional, read to find out if you want to (link courtesy EVGA tech support)
Extend/RAID M.2 - not tested (don't boot RAID, boot M.2 slot PM1, project data on RAID PCIe M.2 card if needed)
Intel Optane PCIe SSD has best 4K random read though - from this thread #26, but thread is tedious.
Mod CLC 280 To Push/Pull - extra fans drop temps; improve sound.  Alternative to custom loop. #82
 
 
Open Question
Hypothesis on fan activated CPU temp drop without coolant temp drop accurate?
What is difference between Intel i219 and i210 NIC?
How to test AVX-512? 
Why 14C+ delta between heavily loaded cores?
Can anything fill RAM faster or test mesh ratio better than Prime95? #55
 
Closed Question
Why must EVGA Flow Control run for fans to follow curve? Shouldn't curve write to firmware on click Apply? #19
Why does HWiNFO64 hang on startup without SMBus disabled? #20
Why 23C delta between heavily loaded cores?  #2-12,21,24
 
Change
2018.02.03 - Updated 4.5Ghz overclock.  Previous 4.3Ghz overclock info moved to #42.
post edited by geninfo - 2018/04/13 17:15:57
#1

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    arestavo
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    Re: X299 Dark Bench Notes/Info 2017/12/29 12:39:08 (permalink)
    Over the years with all of the Intel CPUs that I've had, an 8 to 10C temperature difference on loaded cores is normal (soldered or non-soldered chips). 23C seems a bit extreme. Maybe the TIM replacement wasn't evenly applied?
     
    Or perhaps your CPU cooler's cold plate is warped slightly?

    EVGA affiliate code: 9ZWDWFNW6A
    (Don't forget to upload your invoice or no credit is given!)
     
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    #2
    GGTV-Jon
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    Re: X299 Dark Bench Notes/Info 2017/12/29 12:51:37 (permalink)
    geninfo can you post a picture of the setup?
     
    Was wondering how your cooler was sitting in regards to the cpu / pump unit
    #3
    geninfo
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    Re: X299 Dark Bench Notes/Info 2017/12/30 15:11:19 (permalink)
    GGTV-Jon
    geninfo can you post a picture of the setup?
     

     
    CPU/CLC setup and thermal paste patterns: https://imgur.com/a/6SGLr
    #4
    GGTV-Jon
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    Re: X299 Dark Bench Notes/Info 2017/12/30 15:26:45 (permalink)
    geninfo
    GGTV-Jon
    geninfo can you post a picture of the setup?
     

     
    CPU/CLC setup and thermal paste patterns: https://imgur.com/a/6SGLr




    2 suggestions - make sure the return / feed line from the radiator to the pump is on the bottom (I do not know which one is which on the CLC) to insure no air being pumped through the pump / cooler and wouldn't it be better to have the entire IHS be covered by the TIM you are using?
    #5
    geninfo
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    Re: X299 Dark Bench Notes/Info 2017/12/30 18:25:17 (permalink)
    GGTV-Jon
     
    2 suggestions - make sure the return / feed line from the radiator to the pump is on the bottom (I do not know which one is which on the CLC) to insure no air being pumped through the pump / cooler and wouldn't it be better to have the entire IHS be covered by the TIM you are using?



    Return/feed line already at top bottom based on infrared thermometer measurements at line connection point to radiator and top/bottom radiator itself.  Good tip!
     
    Thermal paste came pre-applied to EVGA CLC 280 cooler in center circle as depicted.  Don't know if entire IHS coverage better because IHS covers more area than CPU - circle may already cover full CPU?  A 79xx chip delid (7980XE?):
     
    https://cdn.wccftech.com/wp-content/uploads/2017/09/Intel-Core-i9-7980XE_3DMark-Firestrike-Physics-Score_2-654x740.png
     
    Waiting for thermal paste cleaning solutions to try Thermal Grizzly Kryonaut.  Difficult to find proper application technique for full coverage (pea versus X, etc.).
    post edited by geninfo - 2017/12/30 19:12:22
    #6
    geninfo
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    Re: X299 Dark Bench Notes/Info 2017/12/30 18:52:18 (permalink)
    arestavo
    Over the years with all of the Intel CPUs that I've had, an 8 to 10C temperature difference on loaded cores is normal (soldered or non-soldered chips). 23C seems a bit extreme. Maybe the TIM replacement wasn't evenly applied?
     
    Or perhaps your CPU cooler's cold plate is warped slightly?



    Thanks.  I asked delid vendor about TIM replacement and if 23C seems abnormal.
     
    How to tell if CPU cooler warped slightly?  I cannot find non-bulk Fujifilm pressure paper.
    #7
    GGTV-Jon
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    Re: X299 Dark Bench Notes/Info 2017/12/30 19:01:18 (permalink)
    geninfo
    arestavo
    Over the years with all of the Intel CPUs that I've had, an 8 to 10C temperature difference on loaded cores is normal (soldered or non-soldered chips). 23C seems a bit extreme. Maybe the TIM replacement wasn't evenly applied?
     
    Or perhaps your CPU cooler's cold plate is warped slightly?



    Thanks.  I asked delid vendor about TIM replacement and if 23C seems abnormal.
     
    How to tell if CPU cooler warped slightly?  I cannot find non-bulk Fujifilm pressure paper.




    I don't think warpage will be a concern with your cooler. My personal thoughts are to just cover the whole dam IHS - the more surface contact area to the cold plate the better. I am actually surprised you are not going with LM at this point
     
    From the video I saw over at Gamers Nexus where they were looking at AMD chips with HBM memory / contact footprints it looked like he had a pack with a bunch if sheets - might be the only way to get it
    #8
    GGTV-Jon
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    Re: X299 Dark Bench Notes/Info 2017/12/30 19:05:03 (permalink)
    Return/feed line already at top based on infrared thermometer measurements at line connection point to radiator and top/bottom radiator itself.  Good tip!

     
    Was / Is it at the top of your radiator with it on the side as in the picture or was that a typo and you meant bottom where you want it?
    Perhaps just elevate the other end so any air bubbles get trapped in the end tank and not able to pass through the hoses
     
    #9
    geninfo
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    Re: X299 Dark Bench Notes/Info 2017/12/30 19:11:16 (permalink)
    GGTV-Jon
     
    I don't think warpage will be a concern with your cooler. My personal thoughts are to just cover the whole dam IHS - the more surface contact area to the cold plate the better. I am actually surprised you are not going with LM at this point
     
    From the video I saw over at Gamers Nexus where they were looking at AMD chips with HBM memory / contact footprints it looked like he had a pack with a bunch if sheets - might be the only way to get it



    Thanks.  Will try full IHS coverage.  You would go liquid metal between IHS and cooler?  Not just under IHS?  I'm willing to try with Thermal Grizzly Conductanaut once Newegg stocks.
     
    I also became aware of paper at Gamers Nexus, but I can only find $500 bulk rolls online.
    #10
    geninfo
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    Re: X299 Dark Bench Notes/Info 2017/12/30 19:13:20 (permalink)
    GGTV-Jon
    Return/feed line already at top based on infrared thermometer measurements at line connection point to radiator and top/bottom radiator itself.  Good tip!

     
    Was / Is it at the top of your radiator with it on the side as in the picture or was that a typo and you meant bottom where you want it?
    Perhaps just elevate the other end so any air bubbles get trapped in the end tank and not able to pass through the hoses
     




    Yes, was typo.  I meant bottom where I want it.
    #11
    GGTV-Jon
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    Re: X299 Dark Bench Notes/Info 2017/12/30 19:17:45 (permalink)
    geninfo
    GGTV-Jon
     
    I don't think warpage will be a concern with your cooler. My personal thoughts are to just cover the whole dam IHS - the more surface contact area to the cold plate the better. I am actually surprised you are not going with LM at this point
     
    From the video I saw over at Gamers Nexus where they were looking at AMD chips with HBM memory / contact footprints it looked like he had a pack with a bunch if sheets - might be the only way to get it



    Thanks.  Will try full IHS coverage.  You would go liquid metal between IHS and cooler?  Not just under IHS?  I'm willing to try with Thermal Grizzly Conductanaut once Newegg stocks.
     
    I also became aware of paper at Gamers Nexus, but I can only find $500 bulk rolls online.





    I think every bit of heat you can get to the cold plate the better - that is just me though (in regards to the IHS and the LM)
     
    I did not look into the paper - ouch that is a bit much
    #12
    kram36
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    Re: X299 Dark Bench Notes/Info 2017/12/30 20:10:53 (permalink)
    Does this board have bootable nvme raid 0?

    Use My Associates Code & SAVE 5% - 10% on your purchase!
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    #13
    GGTV-Jon
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    Re: X299 Dark Bench Notes/Info 2017/12/30 20:24:57 (permalink)
    kram36
    Does this board have bootable nvme raid 0?




    This may (may not?) answer your question - or eatleast give that last page a full look over - https://forums.evga.com/FindPost/2745964
     
    Might as well give the link that was in the link I gave above since it has a direct input to your question - https://forums.evga.com/FindPost/2745465
    post edited by GGTV-Jon - 2017/12/30 20:27:30
    #14
    geninfo
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    Re: X299 Dark Bench Notes/Info 2017/12/31 10:10:00 (permalink)
    NOTE: These results were during a time when 4.3Ghz overclock and configuration was in place.  See Changes in original post.
     
    More results. Pushing overclock to 4.5Ghz based on https://forums.evga.com/FindPost/2746152 .
     
    Note
    100% fan cooling cannot contain heat with AVX above 40x/1.155VCore.
    Fan curve cooling contains non-AVX heat fairly easily at any VCore tested so far (temps < 80C, VCore < 1.16).
    Not even BIOS stable at 45x/1.145Vcore. Reset CMOS.
    Not stable at 45x/1.555Vcore ratio. Fails Prime95.
    Possibly stable at 45x/1.16Vcore ratio with AVX -5/-7.
    Need overnight Prime95 run to confirm (waiting new thermal paste).
     
    Run
    Ratio 45, AVX -3/-5
    Vcore 1.165
    Prime95 Small FFT No-AVX: 38 minutes
    Temps OK
    STABLE
     
    Ratio 45, AVX -3/-5
    Vcore 1.145
    Temps ?
    UNSTABLE RESET CMOS
     
    Ratio 45, AVX -4/-6
    Vcore 1.145
    Prime95 Small FTT AVX: 2 minutes
    Temps RUNAWAY (Full Fan Engagement Fails)
    MANUAL ABORT
     
    Ratio 45, AVX -4/-6 
    Vcore 1.155
    Prime95 1344K No-AVX: ~10 minutes
    Temps OK
    BSOD
     
    Ratio 45, AVX -4/-6
    Vcore 1.16
    Prime95 1344K No-AVX: 50 minutes
    Temps 70-75C (40-41C Coolant, Fans 1800RPM)
    STABLE
     
    Ratio 45, AVX -5/-7
    Vcore 1.16
    Prime95 Small FFT No-AVX: 30 minutes
    Temps 88-89C (42C Coolant, Fans 1900RPM, 23C Ambient)
    STABLE
     
    Question
    How to test AVX-512 with Prime95? CPU clocks down to AVX2 offset, not AVX3 (AVX-512) offset when Prime95 running without AVX disabled.
     
    post edited by geninfo - 2018/02/03 10:41:57
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    GGTV-Jon
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    Re: X299 Dark Bench Notes/Info 2017/12/31 10:30:37 (permalink)
    Were the per core temps closer now with a full IHS coverage?
    #16
    geninfo
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    Re: X299 Dark Bench Notes/Info 2017/12/31 10:35:26 (permalink)
    GGTV-Jon
    Were the per core temps closer now with a full IHS coverage?



    Not yet reapplied.  Will try this week when thermal paste remover solutions arrive.
    #17
    geninfo
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    Re: X299 Dark Bench Notes/Info 2017/12/31 13:43:44 (permalink)
    Note: Results under different configuration than original post.  Using Samsung NVME Driver.  See Change in original post.
     
    Added Iometer to test SSD input/ouput performance.
     
    Note
    960 Pro review: http://www.tomshardware.c...o-ssd-review,4774.html
    Review saw ~2500MB/s sustained average sequential read.
    Review saw ~2100MB/s sustained average sequential write.
    Observed similar sequential write/read performance of Samsung 960 Pro 1TB on Dark (slot PM1) with Iometer.
    Drive temperature (HWiNFO65 Drive Temperature 2) stayed under 70C WITHOUT M2 cooler shroud on Dark, but...
    Samsung 960 Pro 1TB may throttle at 70C?

    Iometer Tip
    Manager is collection of workers.
    Worker is CPU thread that will read/write disk.
    Disk Target is disk/volume to test.
    Access Specification is how to test (read/write pattern).
    Only Workers with selected targets run.
    https://sourceforge.net/p/iometer/svn/HEAD/tree/trunk/IOmeter/Docs/Iometer.pdf

    Example
    Test for sequential read (similar to Tom's Hardware sequential read test):
    Access Specification
        Transfer Request Size = 128 Kilobytes
        Percent Access Spec = 100%
        Percent Read/Write = 100% Read
        Percent Random/Sequential = 100% Sequential
        (OR just copy "256Kib; 100% Read; 0% Random"; change Transfer Request Size to 128 Kilobytes)
    Add this access specification to manager (adds to all workers) or first two workers.
    Set first two workers to target C: with # of Outstanding I/0s = 2 (Queue Depth)
    Start Tests (green flag)
     
    Question
    How to detect throttling on Samsung 960 Pro?  Just graph performance/temp and look for dips?
    post edited by geninfo - 2018/02/03 10:43:16
    #18
    geninfo
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    Re: X299 Dark Bench Notes/Info 2018/01/01 08:48:38 (permalink)
    EVGA Flow Control to EVGA CLC 280 firmware application problem inferred as HWiNFO64 interaction issue.
     
    Inference
    HWiNFO64 signals CLC for sensor information.
    CLC thinks Flow Control software calling it.
    CLC abandons firmware settings; listens for Flow Control direction.
    HWiNFO64 provides no direction.
    CLC without software direction goes fan "off" (600RPM, stops following curves).
    Fan "off" state preserved in firmware until Flow Control sends new direction.
     
    Note
    On restart and during BIOS, CLC keeps fans running on curve if Flow Control ran last.
    On restart and start Flow Control, no change in current fan speed.
    On restart and start HWiNFO64 after Flow Control, CLC sensors not shown in HWiNFO64.
    On restart and start HWiNFO64, fans go "off"; CLC sensors shown in HWiNFO64 (as NZXT Kraken).
    Only starting Flow Control after HWiNFO64 turns fans "off" turns fans on again; CLC Sensors in HWiNFO64 show zero.
    HWiNFO64 shows CLC sensor values again if Flow Control stopped.
     
    Original Post Notes/Questions
    Must run EVGA Flow Control for fans to follow coolant curve.
    Why must EVGA Flow Control run for fans to follow curve? Shouldn't curve write to firmware on click Apply?
    post edited by geninfo - 2018/01/01 08:53:00
    #19
    geninfo
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    Re: X299 Dark Bench Notes/Info 2018/01/06 18:20:22 (permalink)
     
    HWiNFO64 SMBus support application hang inferred as either Legacy Boot or Flow Control interaction.
     
    Note
    Reinstalled Windows under UEFI (previously installed under Legacy).
    Did not install or run EVGA Flow Control.
    HWiNFO64 freshly installed (same version) did not hang even with SMBus Support checked in settings (SMBUS/I2C tab).
    Must install EVGA Flow Control for HWiNFO64 "NZXT Kraken" liquid temperature plus pump speed.
    EVGA Flow Control installs Asetek Universal Serial Hub Controller.
    Asetek provides EVGA CLC 280 pump unit.
     
    Original Post Notes/Questions
    Must disable SMBus in HWiNFO64 or HWiNFO64 hangs during detection on startup.
    Why does HWiNFO64 hang on startup without SMBus disabled?
    post edited by geninfo - 2018/01/07 07:15:06
    #20
    geninfo
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    Re: X299 Dark Bench Notes/Info 2018/01/06 18:35:12 (permalink)
    Do NOT replace EVGA CLC 280 pre-applied stock thermal paste with Thermal Grizzly Kryonaut.
    DO tighten heat sink down properly; check/tighten thumb screws after stress tests.
    Thermal paste reapplication may NOT fix core-to-core temperature disparity.
     
    Note
    Removed existing thermal paste with Arctic Silver Arcticlean Thermal Remover.
    Applied Thermal Grizzly Kryonaut to full IHS (with included spatula, even thin spread per instructions).
    After additional tightening, observed temperatures about 3C higher
    Before additional tightening, observed temperatures 4-5C higher.
    Tightened to "hand tight", ran some stress tests, found screws could easily tighten more with same force.
    Large (23C+) temperature delta between cores still observed; possibly greater than before.
     
    Original Post Note/Question
    HWiNFO64 observes 23C delta between heavily loaded hottest/coldest cores.
    Why 23C delta between heavily loaded cores? (awaiting thermal repaste)
    #21
    bcavnaugh
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    Re: X299 Dark Bench Notes/Info 2018/01/06 18:43:57 (permalink)
    I use MX-4 and my CLC Runs Great.

    Affiliate Code: E5L3CTGE12 & Associate Code: 9E88QK5L7811G3H
    #22
    GGTV-Jon
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    Re: X299 Dark Bench Notes/Info 2018/01/07 12:08:24 (permalink)
    geninfo
    Do NOT replace EVGA CLC 280 pre-applied stock thermal paste with Thermal Grizzly Kryonaut.
    DO tighten heat sink down properly; check/tighten thumb screws after stress tests.
    Thermal paste reapplication may NOT fix core-to-core temperature disparity.
     
    Note
    Removed existing thermal paste with Arctic Silver Arcticlean Thermal Remover.
    Applied Thermal Grizzly Kryonaut to full IHS (with included spatula, even thin spread per instructions).
    After additional tightening, observed temperatures about 3C higher
    Before additional tightening, observed temperatures 4-5C higher.
    Tightened to "hand tight", ran some stress tests, found screws could easily tighten more with same force.
    Large (23C+) temperature delta between cores still observed; possibly greater than before.
     
    Original Post Note/Question
    HWiNFO64 observes 23C delta between heavily loaded hottest/coldest cores.
    Why 23C delta between heavily loaded cores? (awaiting thermal repaste)




    geninfo are you up for testing other Thermo Grizzly products - for Science!!
     
    Thermal Grizzly Conductonaut - Thermal Conductivity of this product is 73 W/mk and thermal resistance of 0.0021 K/W.

    https://www.newegg.com/Product/Product.aspx?Item=9SIA4RE6M28090&cm_re=Thermal_Grizzly-_-2S7-00A9-00013-_-Product
     
    The Kryonaught you used was rated at 12.5 W/mk and thermal resistance of 0.0032 K/W.
    I was going to suggest the Hydronaught as well - but it was only rated 11.8 W/mk and thermal resistance of 0.0076 K/W - not as good as the Kryonaught you already tried and did not like
     
    Edit Question: I do not recall if you said your CPU came from Silicon Lottery or if you did the delid yourself, And if from SL do they have any comments on the temp delta across the cores?
    post edited by GGTV-Jon - 2018/01/07 12:12:58
    #23
    geninfo
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    Re: X299 Dark Bench Notes/Info 2018/01/07 13:17:22 (permalink)
    GGTV-Jon
     
    geninfo are you up for testing other Thermo Grizzly products - for Science!!
     
     
    Yes.  Conductonaut in a couple weeks.
     
    GGTV-Jon
    [font="arial, helvetica, sans-serif; font-size: medium"]Edit Question: I do not recall if you said your CPU came from Silicon Lottery or if you did the delid yourself, And if from SL do they have any comments on the temp delta across the cores?



    Silicon Lottery did delid; says delta normal. 
     
    GamersNexus says 20C delta normal: https://www.gamersnexus.net/guides/3193-video-what-weve-learned-delidding-intel-cpus
     
     At 100C, I see 28C delta.
    #24
    geninfo
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    Re: X299 Dark Bench Notes/Info 2018/01/29 13:48:16 (permalink)
    3DMark Basic Edition
    Fire Strike
     
    GPU OC +50 Boost, +0 Memory
    26,748 (Graphics 29,641, Physics 30,647, Combined 13,913)
     
    GPU OC +50 Boost, +250 Memory
    26,599 (Graphics 29,548, Physics 30,619, Combined 13,674)
     
    GPU OC +50 Boost, +500 Memory
    25,964 (Graphics 29,911, Physics 30,937, Combined 11,639)
     
    GPU OC + 50 Boost = 2025 GPU Clock
    GPU OC + 500 Memory = 6008 Memory Clock 
     
    Question
    Why total score decrease with higher memory clock?
    post edited by geninfo - 2018/01/29 13:52:26
    #25
    bcavnaugh
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    Re: X299 Dark Bench Notes/Info 2018/01/29 14:06:15 (permalink)
    geninfo
    3DMark Basic Edition
    Fire Strike
     
    GPU OC +50 Boost, +0 Memory
    26,748 (Graphics 29,641, Physics 30,647, Combined 13,913)
     
    GPU OC +50 Boost, +250 Memory
    26,599 (Graphics 29,548, Physics 30,619, Combined 13,674)
     
    GPU OC +50 Boost, +500 Memory
    25,964 (Graphics 29,911, Physics 30,937, Combined 11,639)
     
    GPU OC + 50 Boost = 2025 GPU Clock
    GPU OC + 500 Memory = 6008 Memory Clock 
     
    Question Why total score decrease with higher memory clock?

    Need some Links to them Scores to validate or quantify them.
    post edited by bcavnaugh - 2018/01/29 14:09:53

    Affiliate Code: E5L3CTGE12 & Associate Code: 9E88QK5L7811G3H
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    EVGAFAN04
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    Re: X299 Dark Bench Notes/Info 2018/01/31 05:31:57 (permalink)
    geninfo
    Flow Control Fan Curve for *Coolant*
    20/25
    30/25
    33/40
    42/70
    48/100
    60/100

     
    Why would you let your coolant reach 48c ?
    Unless your running on processor temp for your fan control.
    If you are running on processor temp your fans will bounce erratically which will cause loss of processor performance minimal but still a loss.
     
     
    post edited by EVGAFAN04 - 2018/01/31 05:38:46

    Attached Image(s)


    MB EVGA DARK x79 v2.09 - x2 SLI EVGA 780Ti SC - i7 4960x @ 4.52 ghz - Corsair ax1200i - x2 WD VR raid 0 - 16gig Corsair dominator 2140 MHz Cl 9 - Strike X case - 144hz Asus 27" Monitor 3D Ready - Win7 Home 64 -
    http://www.3dmark.com/3dm11/7950294  Mark11 Score
     
    http://www.3dmark.com/fs/1695751  FireStrike Score
    http://stage.results.spee...t/result/434184324.png
     
    #27
    geninfo
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    Re: X299 Dark Bench Notes/Info 2018/01/31 07:21:32 (permalink)
    EVGAFAN04
    Why would you let your coolant reach 48c ?
    Unless your running on processor temp for your fan control.
    If you are running on processor temp your fans will bounce erratically which will cause loss of processor performance minimal but still a loss.
     

     
    Thanks.  You are correct.  Had abandoned coolant-based fan curve and Flow Control software.  Wired radiator fans directly to CPU1_FAN and CPU2_FAN on motherboard.  Using default BIOS SMART fan settings that follow CPU temperature, not coolant temperature.  Updated first post.
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    EVGAFAN04
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    Re: X299 Dark Bench Notes/Info 2018/01/31 10:53:28 (permalink)
    geninfo
    EVGAFAN04
    Why would you let your coolant reach 48c ?
    Unless your running on processor temp for your fan control.
    If you are running on processor temp your fans will bounce erratically which will cause loss of processor performance minimal but still a loss.
     

     
    Thanks.  You are correct.  Had abandoned coolant-based fan curve and Flow Control software.  Wired radiator fans directly to CPU1_FAN and CPU2_FAN on motherboard.  Using default BIOS SMART fan settings that follow CPU temperature, not coolant temperature.  Updated first post.


    It would have been easier to use my settings on coolant temp / now your doing what I said above.
    Running on processor temp your fans will bounce erratically which will cause loss of processor performance minimal but still a loss.

    MB EVGA DARK x79 v2.09 - x2 SLI EVGA 780Ti SC - i7 4960x @ 4.52 ghz - Corsair ax1200i - x2 WD VR raid 0 - 16gig Corsair dominator 2140 MHz Cl 9 - Strike X case - 144hz Asus 27" Monitor 3D Ready - Win7 Home 64 -
    http://www.3dmark.com/3dm11/7950294  Mark11 Score
     
    http://www.3dmark.com/fs/1695751  FireStrike Score
    http://stage.results.spee...t/result/434184324.png
     
    #29
    geninfo
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    Re: X299 Dark Bench Notes/Info 2018/01/31 14:22:23 (permalink)
     
    EVGAFAN04
    It would have been easier to use my settings on coolant temp / now your doing what I said above.
    Running on processor temp your fans will bounce erratically which will cause loss of processor performance minimal but still a loss.




    At high overclock, sudden load, and cool coolant, CPU temp spikes before coolant warm up triggers coolant-based fan curve.  CPU to coolant thermal transfer inadequate to raise coolant temp quickly even with hot CPU.  Radiator and fans must dump heat out of inbound coolant as soon as CPU goes to load to create max temp differential at cold plate.
    post edited by geninfo - 2018/01/31 14:25:35
    #30
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