Overclock the G.SKILL 3200MHz on a X99 Classified running an Core i7 6950X CPU @ 3.00GHz

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churley1234
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2016/11/22 11:55:13 (permalink)
Hello,
 
Does anyone have a recipe to overclock or run the G.SKILL F4-3200C14Q-64GVK at 3200MHz on a X99 Classified MOBO running an Intel Core i7 6950X CPU @ 3.00GHz? I am really not interested to overclock my CPU, but I wish to run my memory at its full speed of 3200MHz. If that means I'll need to step up my CPU to run my memory at 3200MHz, okay.

 
I tried to run the above memory using XMP 1 (14-14-14-34 1.35V), but my system became unstable and would not boot. It would constantly recycle. If anyone knows how to get 3200MHz on my memory please reply.
 
Here is my system configuration:
CPU: Intel Core i7 6950X CPU @ 3.00GHz
CPU Cooler: Corsair Hydro Series H55 Quiet liquid CPU Cooler
MOBO: EVGA X99 Classified
GPU: EVGA GeForce GTX 1080 CLASSIFIED GAMING ACX 3.0
RAM: G.SKILL TridentZ Series 128GB (8 x 16GB) 288-Pin DDR4 SDRAM DDR4 3200 (PC4 25600)
PSU: EVGA SuperNOVA 1200 P2 220-P2-1200-X1 80+ PLATINUM 1200W Fully Modular EVGA ECO Mode
Windows Version: Microsoft Windows 10 (10.0) Professional 64-bit (Build 14393)
BIOS: American Megatrends Inc. version: 2.03

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    bdary
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    Re: Overclock the G.SKILL 3200MHz on a X99 Classified running an Core i7 6950X CPU @ 3.00G 2016/11/22 12:15:34 (permalink)
    Since the XMP profile didn't work, try using the same timings in "manual" mode.  Also set your Ram voltages manually at the rated spec.  See if that helps.

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    #2
    churley1234
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    Re: Overclock the G.SKILL 3200MHz on a X99 Classified running an Core i7 6950X CPU @ 3.00G 2016/11/22 13:59:31 (permalink)
    Thank you bdary for your reply. I tried manually setting my timings to the settings directly below, but my system still became unstable and would not reboot. The only stable configuration I am able to run is to let BIOS or Windows boot to set my timings at those in the below image link. Do you think perhaps I should increase my CPU BCLK from 100.0 to 125.0? That would cause me to run my CPU at 30 x 125 = 3.75 GHz. I read somewhere where that helped, but those notes were for a different CPU other than Intel Core i7 6950X. 
     
    Frequency: 3200 MHz
    CAS# Latency (CL): 14
    RAS# to CAS# (tRCD): 14
    RAS# Precharge (tRP): 14
    Active to Precharge Delay (tRAS): 34
    (tRC): 48
    Voltage: 1.350 V
    post edited by churley1234 - 2016/11/22 14:06:47

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    bdary
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    Re: Overclock the G.SKILL 3200MHz on a X99 Classified running an Core i7 6950X CPU @ 3.00G 2016/11/22 15:00:59 (permalink)
    You should be able to run 3200MHz ram with a 100 Bclk typically.  When you set your timings and frequency manually, did you also set your Dimm voltages manually?  If so, here's a couple things you can try.
     
    1.  Try manually setting frequency to 2666.  Timings and Dimm voltages to ram spec. 14,14,14,34 & 1.35v.  See if you're able to boot with that.
    2.  Remove 4 sticks of ram leaving only slots 1,3,5 & 7 populated.  Set your xmp profile to profile #1.  See if that works.
     
    Trying to run 128GB of memory at 3200MHz, may be difficult.  We'll see what happens after you try these things.

    EVGA X99 Classy ~ EVGA 1080 FTW ~ EVGA 970 SSC for PhysX
    i7-5930K @ 4.40GHz ~ Corsair H100i ~ 16GB G.Skill RipJaws 4 @ 2400MHz
    Samsung 840 Pro w/ W7 HP & W10 Pro 64bit (Dual Boot) ~ Samsung 840 256GB
    EVGA 1300W G2 ~ CM HafX ~ ASUS ROG Swift 144Hz Gsync ~ Acer 27" 120Hz 3D

    Firestrike >> http://www.3dmark.com/fs/9823006
    TimeSpy >> http://www.3dmark.com/spy/297131
    EVGA Affiliate Code - M1D1QH1FTU
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    churley1234
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    Re: Overclock the G.SKILL 3200MHz on a X99 Classified running an Core i7 6950X CPU @ 3.00G 2016/11/22 16:16:11 (permalink)
    Well there has been some improvement in my system performance. I see where you are going, so I set my frequency to 2933 MHz and voltage to 1.340 V. The specs say the memory is rated to run at a stock setting of 1.350 V, but I saw that the BIOS had it running at 1.370 V even though I set it to 1.350 V. So I set the voltage a little less than specs. Taking the next step, I then set the frequency to 3000 MHz and voltage to 1.350 V. But even though I am able to boot to Windows 10, Windows 10 gave me a BSOD stating it could not find the kernel. I saw that others also mentioned hitting the wall (BSOD) at 3000 MHz on the X99 MOBO. I've attached a screenshot of CPU-Z memory and SPD tabs below.
     
    I think I'll run my 128 GBs of memory at 2933 MHz, 1.340 V and timings of 14-14-14-34. Unless you advise otherwise? I wish to thank you. With your good advise you gave me the confidence to explore. I am going to run a few stability tests with AIDA64 and some benchmarks to see if everything is okay.
     
     

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    churley1234
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    Re: Overclock the G.SKILL 3200MHz on a X99 Classified running an Core i7 6950X CPU @ 3.00G 2016/11/22 23:06:13 (permalink)
    Okay, I spoke too soon. I had to bring down my frequency from 2933 MHz to what you recommended 2667 MHz. I had a boot recycle at 2933 MHz. I believe (hope) my system is more stable. Later, I'll try walking up the frequency to say 2850 MHz or about. After the holidays I'll call g.skill and see if they know a sure-shot recipe to have me run at 3200 MHz.
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