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  1. #1
    ROG Guru: White Belt Array orcinus PC Specs
    orcinus PC Specs
    MotherboardRampage V Extreme 3504
    Processori7-5960X @ 4.585GHz strap 125, BCLK 131
    Memory (part number)F4-2800C16Q-32GRR@13-13-13-33-CR1-BCLK 131,
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    Power SupplyCorsair AX1500i
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    Unhappy RVE, 5960X, 128GB 2800 - bandwidth low

    I'm running the RVE-5960X-8x16GB 2800 C16 config at any setup and in all situations on Win10 64 AIDA 64 Extreme 5.90.4200 reports about 21k GB/s of memory read bandwidth.

    The tool correctly reports the system is indeed running at 15-15-15-35 2T 2800MHz at 127.3MHz, 1:22 multiplier, 4GHz NB Frequency, quad-channel as active. Full 128GB complement working.

    BIOS I 3504. Memory is G.Skill 2800C16 (used timings from the XMP2). Voltage to Sys Agent is 1,168V, CPU voltage is 1,26V, but voltage or CPU did not make any diff. in performance.

    Memory: G.SKILL Ripjaws 4 Series F4-2800C15Q2-128GRKD DDR4 2800 MHz 128 GB Memory Kit - Black
    BIOS: 3504
    CPU: i7-5960X
    OS: Windows 10 x64 Enterprise, fully/regulary patched
    AIDA64 Extreme 5.90.4200
    Applied XMP2
    System Agent Voltage tested: 1.162V-175V
    CPU Voltage tested: 1.02V-1.3V
    Memory voltage tested: 1.35V-1.4V
    Timings tested: 15-15-15-35-T1 - 16-16-16-38-T2.

    Can't get the reading past 22000-25000 GBps
    Latencies are great at ~60ns.
    Write speed abysmal, Read and Copy too.

    New development: it seems that this problem occurs as soon as I apply XMP. At "safe default" the results are fine. Applying XMP or manually overclocking anything, even just CPU multi, kills it.

    Didn't help setting high voltages. CPU C-states, turbo and power saving, etc. all OFF, no help either.

    BIOS Defaults gives 58k.

    ________
    It seems that 2800 is a bit too much for 128GB, at least in this instance.
    While the CPU can clock high, 4.76@1.35, 4.88@1.4 (I never ran benchmarks on this, only Win boot), the IMC can't run 128GB @ 2.8GHz. I had to revert to 2.6GHz memory speed but so far it is fully stable with (CPU strap 125) BCLK 131MHz, 2620@14-14-14-34 1T, with default voltages. Which is very nice.
    Will try going higher, but don't think it's worth the hassle.
    Last edited by orcinus; 04-07-2017 at 09:20 PM. Reason: New info

  2. #2
    ROG Guru: Grand Master Array Arne Saknussemm PC Specs
    Arne Saknussemm PC Specs
    Laptop (Model)Laptop?...No way! (Model?...Jun Amaki...yes way!)
    MotherboardROG ZENITH II EXTREME
    ProcessorTHREADRIPPER 3960X
    Memory (part number)TXBD48G4000HC18FBK
    Graphics Card #1GTX Titan X
    Graphics Card #2SLI is dead to me
    Graphics Card #3Tri SLI is even dead to Nvidia
    Graphics Card #4Quad SLI is dead to everybody especially my credit card
    Sound CardXonar Essence STX
    MonitorASUS ROG Swift PG279Q
    Storage #1Samsung 970/960/950 PRO
    Storage #22x OCZ VERTEX 3/2x WD Caviar Black 500GB / 2x WD RED 2TB/Samsung 1TBSSDs
    CPU CoolerCustom Loop: Dual D5s, Dual Alphacool Monsta 480s, XSPC Raystorm Neo TR4, EK TitanX WaterBlock
    CaseNope!...Dimastech Easy XL...let it all hang out man!
    Power SupplySeasonic 1000 Platinum
    Keyboard Corsair Strafe MK2 ROG Claymore... or Fender Rhodes Electric Piano (MKI 73)
    Mouse Corsair M65Pro or Speedy Gonzalez...not Mickey...don't do Disney!
    Headset ...firmly on neck
    Mouse Pad Mouse don't got his own pad man...lives with me
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    Arne Saknussemm's Avatar
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    Is that one single 128GB quad channel kit? or are you combining kits?

  3. #3
    ROG Guru: White Belt Array orcinus PC Specs
    orcinus PC Specs
    MotherboardRampage V Extreme 3504
    Processori7-5960X @ 4.585GHz strap 125, BCLK 131
    Memory (part number)F4-2800C16Q-32GRR@13-13-13-33-CR1-BCLK 131,
    Graphics Card #1TITAN Xp
    Graphics Card #2TITAN Xp
    Sound CardAsus Xonar Essence STX
    MonitorDell UP2715K
    Storage #1SM 960 Pro 2TB RADI1
    Storage #2SM 960 Pro 2TB RAID1
    CPU CoolerEKWB custom 2x480mm + 1x560mm
    CaseCaseLabs Magnum STH10
    Power SupplyCorsair AX1500i
    Keyboard Logitech G710+
    Mouse Logitech G900
    Headset Sennheiser PXC550
    OS Windows 10 Enterprise 64 1701
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    Quote Originally Posted by Arne Saknussemm View Post
    Is that one single 128GB quad channel kit? or are you combining kits?
    A single kit, of course. All other info seems fine, from the CPU-Z to AIDA's readings, BIOS... but performance is abysmal. I've started checking it out since I've noticed my copy operations and in-memory work are seriously slower than expected. AIDA results did not surprise me. I would expect the quad channel to be malfunctioning, but everything seems to be in order in that regard.

  4. #4
    ROG Guru: White Belt Array orcinus PC Specs
    orcinus PC Specs
    MotherboardRampage V Extreme 3504
    Processori7-5960X @ 4.585GHz strap 125, BCLK 131
    Memory (part number)F4-2800C16Q-32GRR@13-13-13-33-CR1-BCLK 131,
    Graphics Card #1TITAN Xp
    Graphics Card #2TITAN Xp
    Sound CardAsus Xonar Essence STX
    MonitorDell UP2715K
    Storage #1SM 960 Pro 2TB RADI1
    Storage #2SM 960 Pro 2TB RAID1
    CPU CoolerEKWB custom 2x480mm + 1x560mm
    CaseCaseLabs Magnum STH10
    Power SupplyCorsair AX1500i
    Keyboard Logitech G710+
    Mouse Logitech G900
    Headset Sennheiser PXC550
    OS Windows 10 Enterprise 64 1701
    Network RouterAsus AC88U

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    This is the most default status I could setup; only XMP applied: http://imgur.com/a/zmUeL

    And this is the result:
    http://imgur.com/a/TlXQk

  5. #5
    ROG Guru: Grand Master Array Arne Saknussemm PC Specs
    Arne Saknussemm PC Specs
    Laptop (Model)Laptop?...No way! (Model?...Jun Amaki...yes way!)
    MotherboardROG ZENITH II EXTREME
    ProcessorTHREADRIPPER 3960X
    Memory (part number)TXBD48G4000HC18FBK
    Graphics Card #1GTX Titan X
    Graphics Card #2SLI is dead to me
    Graphics Card #3Tri SLI is even dead to Nvidia
    Graphics Card #4Quad SLI is dead to everybody especially my credit card
    Sound CardXonar Essence STX
    MonitorASUS ROG Swift PG279Q
    Storage #1Samsung 970/960/950 PRO
    Storage #22x OCZ VERTEX 3/2x WD Caviar Black 500GB / 2x WD RED 2TB/Samsung 1TBSSDs
    CPU CoolerCustom Loop: Dual D5s, Dual Alphacool Monsta 480s, XSPC Raystorm Neo TR4, EK TitanX WaterBlock
    CaseNope!...Dimastech Easy XL...let it all hang out man!
    Power SupplySeasonic 1000 Platinum
    Keyboard Corsair Strafe MK2 ROG Claymore... or Fender Rhodes Electric Piano (MKI 73)
    Mouse Corsair M65Pro or Speedy Gonzalez...not Mickey...don't do Disney!
    Headset ...firmly on neck
    Mouse Pad Mouse don't got his own pad man...lives with me
    Headset/Speakers Edifier Spinnaker...or you mean the speakers in my head...man too many voices to name them all
    OS Win XP, 7, 8, 8.1 and Windows 10 Spyware Edition
    Network Router56k modem
    Accessory #1 Umm...nice tie?
    Accessory #2 Err...belt?
    Accessory #3 3 accessories?! I'm not a girl!!
    Arne Saknussemm's Avatar
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    Sorry...had to ask...the of course one kit escapes a lot of people and you haven't updated your specs ;-)

    Have you tried increasing vccsa to 1.2 or 1.25 and bumping dram voltage a bit too....just in case xmp leaves it on the edge of working?...maybe try 4 sticks only and see if things improve?

  6. #6
    ROG Guru: White Belt Array orcinus PC Specs
    orcinus PC Specs
    MotherboardRampage V Extreme 3504
    Processori7-5960X @ 4.585GHz strap 125, BCLK 131
    Memory (part number)F4-2800C16Q-32GRR@13-13-13-33-CR1-BCLK 131,
    Graphics Card #1TITAN Xp
    Graphics Card #2TITAN Xp
    Sound CardAsus Xonar Essence STX
    MonitorDell UP2715K
    Storage #1SM 960 Pro 2TB RADI1
    Storage #2SM 960 Pro 2TB RAID1
    CPU CoolerEKWB custom 2x480mm + 1x560mm
    CaseCaseLabs Magnum STH10
    Power SupplyCorsair AX1500i
    Keyboard Logitech G710+
    Mouse Logitech G900
    Headset Sennheiser PXC550
    OS Windows 10 Enterprise 64 1701
    Network RouterAsus AC88U

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    Quote Originally Posted by Arne Saknussemm View Post
    Sorry...had to ask...the of course one kit escapes a lot of people and you haven't updated your specs ;-)

    Have you tried increasing vccsa to 1.2 or 1.25 and bumping dram voltage a bit too....just in case xmp leaves it on the edge of working?...maybe try 4 sticks only and see if things improve?

    Sys Agent to 1.2? Isn't it too high? Wasn't 1.15 maximum safe voltage?

  7. #7
    ROG Guru: Grand Master Array Arne Saknussemm PC Specs
    Arne Saknussemm PC Specs
    Laptop (Model)Laptop?...No way! (Model?...Jun Amaki...yes way!)
    MotherboardROG ZENITH II EXTREME
    ProcessorTHREADRIPPER 3960X
    Memory (part number)TXBD48G4000HC18FBK
    Graphics Card #1GTX Titan X
    Graphics Card #2SLI is dead to me
    Graphics Card #3Tri SLI is even dead to Nvidia
    Graphics Card #4Quad SLI is dead to everybody especially my credit card
    Sound CardXonar Essence STX
    MonitorASUS ROG Swift PG279Q
    Storage #1Samsung 970/960/950 PRO
    Storage #22x OCZ VERTEX 3/2x WD Caviar Black 500GB / 2x WD RED 2TB/Samsung 1TBSSDs
    CPU CoolerCustom Loop: Dual D5s, Dual Alphacool Monsta 480s, XSPC Raystorm Neo TR4, EK TitanX WaterBlock
    CaseNope!...Dimastech Easy XL...let it all hang out man!
    Power SupplySeasonic 1000 Platinum
    Keyboard Corsair Strafe MK2 ROG Claymore... or Fender Rhodes Electric Piano (MKI 73)
    Mouse Corsair M65Pro or Speedy Gonzalez...not Mickey...don't do Disney!
    Headset ...firmly on neck
    Mouse Pad Mouse don't got his own pad man...lives with me
    Headset/Speakers Edifier Spinnaker...or you mean the speakers in my head...man too many voices to name them all
    OS Win XP, 7, 8, 8.1 and Windows 10 Spyware Edition
    Network Router56k modem
    Accessory #1 Umm...nice tie?
    Accessory #2 Err...belt?
    Accessory #3 3 accessories?! I'm not a girl!!
    Arne Saknussemm's Avatar
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    Well...that's a debate...but fine for a quick experiment lots of people run 1.2...1.25...I wouldn't like to but at least you would know if it makes a difference and could plan from there..

    Or...try running at 2400 MHz on 100 bclk and tighten timings...see if bandwidth improves...

  8. #8
    ROG Guru: White Belt Array orcinus PC Specs
    orcinus PC Specs
    MotherboardRampage V Extreme 3504
    Processori7-5960X @ 4.585GHz strap 125, BCLK 131
    Memory (part number)F4-2800C16Q-32GRR@13-13-13-33-CR1-BCLK 131,
    Graphics Card #1TITAN Xp
    Graphics Card #2TITAN Xp
    Sound CardAsus Xonar Essence STX
    MonitorDell UP2715K
    Storage #1SM 960 Pro 2TB RADI1
    Storage #2SM 960 Pro 2TB RAID1
    CPU CoolerEKWB custom 2x480mm + 1x560mm
    CaseCaseLabs Magnum STH10
    Power SupplyCorsair AX1500i
    Keyboard Logitech G710+
    Mouse Logitech G900
    Headset Sennheiser PXC550
    OS Windows 10 Enterprise 64 1701
    Network RouterAsus AC88U

    Join Date
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    Quote Originally Posted by Arne Saknussemm View Post
    Well...that's a debate...but fine for a quick experiment lots of people run 1.2...1.25...I wouldn't like to but at least you would know if it makes a difference and could plan from there..

    Or...try running at 2400 MHz on 100 bclk and tighten timings...see if bandwidth improves...

    It did not... :/

  9. #9
    ROG Guru: White Belt Array orcinus PC Specs
    orcinus PC Specs
    MotherboardRampage V Extreme 3504
    Processori7-5960X @ 4.585GHz strap 125, BCLK 131
    Memory (part number)F4-2800C16Q-32GRR@13-13-13-33-CR1-BCLK 131,
    Graphics Card #1TITAN Xp
    Graphics Card #2TITAN Xp
    Sound CardAsus Xonar Essence STX
    MonitorDell UP2715K
    Storage #1SM 960 Pro 2TB RADI1
    Storage #2SM 960 Pro 2TB RAID1
    CPU CoolerEKWB custom 2x480mm + 1x560mm
    CaseCaseLabs Magnum STH10
    Power SupplyCorsair AX1500i
    Keyboard Logitech G710+
    Mouse Logitech G900
    Headset Sennheiser PXC550
    OS Windows 10 Enterprise 64 1701
    Network RouterAsus AC88U

    Join Date
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    Reported theoretical bw is ~90k, but can't move above 23k I got with 1T from 22k... something is ... no idea.

  10. #10
    ROG Guru: White Belt Array orcinus PC Specs
    orcinus PC Specs
    MotherboardRampage V Extreme 3504
    Processori7-5960X @ 4.585GHz strap 125, BCLK 131
    Memory (part number)F4-2800C16Q-32GRR@13-13-13-33-CR1-BCLK 131,
    Graphics Card #1TITAN Xp
    Graphics Card #2TITAN Xp
    Sound CardAsus Xonar Essence STX
    MonitorDell UP2715K
    Storage #1SM 960 Pro 2TB RADI1
    Storage #2SM 960 Pro 2TB RAID1
    CPU CoolerEKWB custom 2x480mm + 1x560mm
    CaseCaseLabs Magnum STH10
    Power SupplyCorsair AX1500i
    Keyboard Logitech G710+
    Mouse Logitech G900
    Headset Sennheiser PXC550
    OS Windows 10 Enterprise 64 1701
    Network RouterAsus AC88U

    Join Date
    Oct 2014
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    Memory: G.SKILL Ripjaws 4 Series F4-2800C15Q2-128GRKD DDR4 2800 MHz 128 GB Memory Kit - Black
    BIOS: 3504
    CPU: i7-5960X
    OS: Windows 10 x64 Enterprise, fully/regulary patched
    AIDA64 Extreme 5.90.4200
    Applied XMP2
    System Agent Voltage tested: 1.162V-175V
    CPU Voltage tested: 1.02V-1.3V
    Memory voltage tested: 1.35V-1.4V
    Timings tested: 15-15-15-35-T1 - 16-16-16-38-T2.

    Can't get the reading past 22.000 GBps
    Latencies are great at ~60ns.
    Write speed abysmal, Read and Copy too.

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