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  1. #1
    ROG Guru: Grand Master Array
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    128GB DDR4 Memory Setup For Rampage V Extreme

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    The Haswell-E platform and DDR4 standard opened up a door to new possibilities in regards to memory capacity. With the availability of high-performance X99 motherboards with 8 memory slots and 16GB memory modules, we find ourselves at the threshold of the 128GB era. Previously it was only possible to find support for memory at that capacity in workstations and servers. Those usually cost an arm and a leg. Kudos goes to Intel for bringing us the first consumer platform to support memory capacities up to 128GB.

    Most of us can agree on the fact that general PC users, gamers and enthusiasts can get by with 8GB or 16GB. Professional users who rely on heavy memory programs and virtualization will certainly welcome the possibility to have more memory. Running 128GB of high speed DDR4 isn’t a simple task so plug-n-play shouldn’t be expected. Manual tweaking is required to achieve stability.


    HyperX Savage DDR4 128GB (8 x 16GB) DDR4 2666

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    The 128GB memory kit featured in this setup comes from the HyperX Savage DDR4 line with model number HX426C15SBK8/128. It is comprised of eight 16GB DIMMS with a speed rating of 2666MHz and a voltage of 1.2V. The kit is available at Newegg for $607.99.


    Motherboard BIOS
    Support for the 128GB capacity was added through a BIOS update for the X99 motherboards. Luckily we can find out what shipping BIOS came with our motherboard without having to power it up.

    Locate the long, thin sticker that contains a barcode and a bunch of numbers. The last 4 digits is the shipping BIOS for the motherboard we have in our hands. Depending on the model, this sticker can be found above the memory slots, beside the 24 pin power connector or on the side of one of the PCIe expansion slots.

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    The following table lists the different ASUS X99 motherboards that are capable of running 128GB of RAM and the minimum BIOS revision necessary. If your shipping BIOS is prior to the revision listed in the table, proceed to the USB BIOS Flashback section.

    Motherboard BIOS
    RAMPAGE V EXTREME 1502
    SABERTOOTH X99 1801
    X99-PRO 1801
    X99-A 1801
    X99-DELUXE 1801
    X99-E WS 1201
    X99-S 1801

    USB BIOS Flashback
    USB BIOS Flashback is a nifty feature to update your BIOS using a USB pendrive without a CPU or memory module present on the motherboard. The only requisite is that the motherboard must be receiving power.

    However, here are some recommendations for the USB pendrive:
    • Make sure the USB pendrive is FAT32 formatted.
    • The USB pendrive should be empty.
    • When possible, use USB pendrives that are small in capacity (2GB, 4GB or 8GB).
    • Avoid using USB pendrives with hidden partitions.

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    Here’s the common procedure for using the USB BIOS Flashback feature:
    1. Download the latest BIOS along with the BIOS Renamer from the motherboard’s support page.
    2. Extract both to the same folder.
    3. Run the BIOS Renamer to have the BIOS file renamed automatically for the USB BIOS Flashback procedure.
    4. Copy the BIOS file to the USB pendrive.
    5. Insert the USB pendrive into the dedicated USB BIOS Flashback port.
    6. Press the USB BIOS Flashback button for three seconds until a LED starts to blink, then release the button.
    7. The LED will eventually blink faster and faster. Once it stops blinking, the process is finished.


    Memory Tweaking
    Configuring a 128GB memory kit to play nice on your motherboard requires a certain level of patience since a lot of trial and error takes place. Luckily, Rampage V Extreme owners can make use of the Safe Boot button that is located just right beside the Slow Mode Switch at the edge of the motherboard. The Safe Boot button forces the motherboard to reboot into the BIOS safe mode retaining all the previous settings that were changed.

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    Since each CPU is different, there isn’t a magic setting or a one configuration fits all. There are certain settings that can help us achieve stability. So it’s beneficial to add these settings in the My Favorites tab so we don’t waste time finding them one by one later on.

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    The QCODEs that pop up during post is a good indication which voltages to modify. A bd QCODE usually indicate insufficient System Agent Voltage. But since it’s a sensitive voltage, I don’t recommend you brute forcing it but rather use small increments.

    A bf QCODE is a little tricky since it’s a memory instability error. As a starting point, change the Rampage Tweak option from Auto to Mode 1. If that fails, continue in Mode 1 and slightly increase the CPU Input Voltage, Core Voltage and Cache Voltage by a little bit. Some users increase the DRAM voltage but personally I don’t go that route. If none of the above works, then one must settle that his CPU’s IMC is below par and it might be necessary to consider running the memory at a lower frequency or with loosened primary timings.


    Google Stressapptest
    Stressful Application Test (or stressapptest, its unix name) is a memory interface test. It tries to maximize randomized traffic to memory from processor and I/O, with the intent of creating a realistic high load situation in order to test the existing hardware devices in a computer. It has been used at Google for some time and now it is available under the apache 2.0 license.
    In order to use stressapptest, it is necessary to install Linux. Linux Mint Cinnamon is one of the best and most popular distro for desktops. Nevertheless, you can use whichever distro you’re most comfortable with. We will need to download the 64-Bit ISO and UNetbootin to create a bootable USB pendrive.

    Once we’ve downloaded both files, run UNetbootin as administrator. Choose the Distribution you’re using and point the program to the ISO you’ve downloaded. The 64-bit version of Linux Mint is particularly small (less than 2GB) so a 4GB USB pendrive is more than sufficient.

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    Once the process has finished, restart your system and boot from the USB pendrive. You will be greeted with the following Linux Mint desktop. At this point you can continue to run the OS from the USB pendrive or install it to a spare HDD/SDD. If you prefer to run it off the USB pendrive, skip the following steps.

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    Double click the Install Linux Mint shortcut to start installation to a HDD/SSD. The install process is straightforward and identical to a Windows installation so you shouldn’t experience any problems with it.

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    Once the installation is over or if you skipped to this step, the next step is to download the Google Stressapptest. The quickest way to do so is to open up a Terminal and type the following command:
    sudo apt-get install stressapptest

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    If done correctly, the application will download on its own and install itself automatically.

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    To run our newly installed stressapptest, we will input the following command:
    stressapptest -W -s 3600

    The duration of the test is measured in seconds. As a minimum, I would recommend you run at least 1 hour. As always if memory stability is a matter of life or death for your system, you should run it for a longer duration. There should be 0 errors during the test. If any errors show up, stop the test and continue tweaking the various voltages and rerun the test.

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    I was able to overclock the HyperX Savage DDR4 kit from 2666MHz to 2800MHz since my 5960X’s IMC is average at best and seems to top out at 2800MHz when using 128GB. The kit is running with the exact timings except for DRAM voltage which was raised to 1.35V to accommodate for the overclock. In regards to the other settings, everything was on Auto except for the System Agent Voltage which I increased to 0.95V and the CPU Input Voltage to 1.9V.

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  2. #2
    ROG Guru: Gold Belt Array Menthol PC Specs
    Menthol PC Specs
    MotherboardRVE / M8E / M8F/RIVEB/RV-E10/M5E/M6E/MIXApex
    Processor6950X/6700K/6900X/5960X/4790K/3770K/6700K/7700K/7350K/7600K/4960X/770K
    Memory (part number)Gskill Trident Z 3200 CL14/Trident Z 3600 CL 16/GskillPSC/Corsair2666/CorsairLED/
    Graphics Card #1ASUS GTX 1080 OC
    Graphics Card #2Nvidia Titam Pascal
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    Sound CardOnboard
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    Storage #1Samsung 950 Pro 512GB X 2/960Pro/Intel750/
    Storage #2Intel 750 1.2TB/Samsung 840-850 Pro-Evo/ WD HDD
    CPU CoolerEK Predator 360/Corsair H110i/h115i/Custom Water/Chiller/SS
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    Chino,
    Very good guide, especially like the well explained Linux guide

  3. #3
    ROG Guru: Green Belt Array Avenger411 PC Specs
    Avenger411 PC Specs
    MotherboardAsus Rampage V Extreme
    ProcessorIntel 5930K@4.3Ghz
    Memory (part number)G-Skills DDR4-3200 (16-16-16-36-1T) 1.375v
    Graphics Card #1EVGA Titan X w/ 980 Hybrid AiO Liquid Cooler
    MonitorAsus RoG Swift PG278Q
    Storage #1OCZ RD400A (Windows)
    Storage #2Samsung 950 Pro (Gaming)
    CPU CoolerCorsair H100i
    CaseCorsair 780T
    Power SupplyAntec HCP-1000w Platinum
    Keyboard Corsair K70 Cherry-Mx Brown
    Mouse Logitech G502 Proteus Core
    Headset Roccat 5.1 True Surround Digital
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    Hey,

    Nice tutorial chino!. I can see people already benefiting this. Even for me not using the 128gb kits, it's a nice refresh from the good old 16gb gskills setup tutorial

    Max
    Cpu : Intel 5930K@4.25ghz@1.2v / Cache @4.25ghz@1.20v
    Cpu Cooler : Corsair H100i
    Case : Corsair 780T
    Memory : G.Skills 32GB DDR4-3200mhz CAS 15-15-15-35-1T@1.370v
    Motherboard : Asus Rampage V Extreme (BIOS 3504)
    M2 : Samsung 950 Pro NVME 512gb (Gaming)
    M2 : SSD1 : OCZ RD400A 128gb (windows)
    SSD1 : Crucial MX100 512gb (data)
    Gfx : EVGA Titan X w/ 980 Hybrid Cooling AiO Liquid Cooler
    PSU : Antec HCP-1000W
    Monitor : Asus RoG Swift

  4. #4
    ROG Guru: Brown Belt Array Hopper64 PC Specs
    Hopper64 PC Specs
    MotherboardAsus R6E Bios 0802
    Processori9 7900X @ 4.7 1.225 VCore
    Memory (part number)G.SKILL F4-2800C16Q-32GRK
    Graphics Card #1Nvidia Titan Xp
    Sound CardCreative SBZ
    MonitorAsus PG348Q
    Storage #1Samsung 960 Pro 1TB
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    Thanks Chino. Someone going to sticky this one?

  5. #5
    ROG Guru: Orange Belt Array
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    I've been running this kit for a month or so (128G CAS14 3000):
    http://www.newegg.com/Product/Produc...-269-_-Product

    It's a little more ($850) and runs 2800 CAS 12 BCLK100 with normal voltages, but I haven't been able to even POST at 3000 under any circumstances. CAS12 2800 128G is nothing to sneeze at and none of my 59xx's have been happy with > 2800 with 64 or 128G.

  6. #6
    ROG Guru: Brown Belt Array Hopper64 PC Specs
    Hopper64 PC Specs
    MotherboardAsus R6E Bios 0802
    Processori9 7900X @ 4.7 1.225 VCore
    Memory (part number)G.SKILL F4-2800C16Q-32GRK
    Graphics Card #1Nvidia Titan Xp
    Sound CardCreative SBZ
    MonitorAsus PG348Q
    Storage #1Samsung 960 Pro 1TB
    CPU CoolerEisbaer 420
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    Wonder how the new 6950x will play with 128 or 64G?

  7. #7
    ROG 師傅 Array Arne Saknussemm PC Specs
    Arne Saknussemm PC Specs
    Laptop (Model)Laptop?...No way! (Model?...Michelle Rudan...yes way!)
    MotherboardRampage V Edition 10
    Processori7-5960X
    Memory (part number)F4-3200C14Q-32GVK
    Graphics Card #1GTX Titan X
    Graphics Card #2GTX Titan X
    Sound CardXonar Essence STX
    MonitorDell U2711
    Storage #1Samsung 950 PRO
    Storage #22x OCZ VERTEX 3/2x WD Caviar Black 500GB / 2x WD RED 2TB
    CPU CoolerCustom Loop: Dual D5s, Dual Monsta 480s, EK Supremacy Evo, Dual EK TitanX WaterBlocks
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    Headset ...firmly on neck
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    Nice guide Chino!


  8. #8
    ROG Guru: Orange Belt Array
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    Quote Originally Posted by cekim View Post
    I've been running this kit for a month or so (128G CAS14 3000):
    http://www.newegg.com/Product/Produc...-269-_-Product

    It's a little more ($850) and runs 2800 CAS 12 BCLK100 with normal voltages, but I haven't been able to even POST at 3000 under any circumstances. CAS12 2800 128G is nothing to sneeze at and none of my 59xx's have been happy with > 2800 with 64 or 128G.
    A pretty big update this weekend.

    Finally got all the parts to move my best CPU to the R5E (previously the R5E had a 5930k and the 5960x lived on an X99-PRO):

    1. XMP worked out of the box with 128G 3000 CAS 14 for the first time, ever... Everything auto, but XMP.
    2. default XMP is 125bclk which I don't like (I want adaptive, speed step, etc... to all work)
    3. 100blk works! With +.220 SA, no other changes (er, oops, that and LLC 5 and 140% current limit on dram in digi+)

    I hadn't seen much difference between X99 PRO and R5E previously, but I'm finally getting some premium worth paying for now that I've shaken all the other variables out...

  9. #9
    ROG Member Array
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    755

    How long will the test take?

    ASUS ROG Rampage V Edition 10 (1003)
    i7-6950X
    Kingston HyperX Savage DIMM Kit 128GB, DDR4-2666, CL15 (HX426C15SBK8/128)

    I run this over night and in the late morning i got only 2% of the Test !?

  10. #10
    ROG Guru: Grand Master Array
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    The duration of the test will depend on how long you programmed it to run. In this guide's case, it runs for 1 hour.

    If you left your system on for over night and you're only seeing 2%, your memory overclock probably isn't stable in which case manual tweaking will be required. Was your system frozen?

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