VIPERIXIX
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I7 4960
W7 pro 64Bit
G.skill F3-19200CL 10Q2-64GBZHD
bios 2.09
I cant get my memory higher than 1333mhz. I tried 4 sticks and 8 sticks both ways and no post. Must reset cmos to boot everytime. I tried 4 sticks of corsair 1600mhz and set it at 1600mhz and still wont post. Dims are populted corectly and checked it twice to be sure so any advice out their? The G.skill is in the compat list too.
i7 4960X X79 Dark (EVGA) G.Skill 64GB 2400mhz Intel 520 SSD (4) Raid 0 1000W PSU (EVGA) W7 Pro 64 bit
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KenMcC
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Re: X79 Dark and G.skill 2400 memory
Monday, January 27, 2014 7:44 PM
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☼ Best Answerby VIPERIXIX Monday, January 27, 2014 11:35 PM
Just a quick thought, since you have such large memory on each stick; try upping the VCCIO a little. Don't exceed 1.2v for extended use. I would just go up a little at a time.. as in 0.05v each step. 
KenMcC Z170 Classy K; i7-6700 CPU, Corsair CMK16GX4M2A2400C14 Seasonic SSR-360GP 360W; Samsung 950 Pro M.2 256 GB Samsung 850 Evo 500 GB SATA Samsung 850 Evo 256 GB SATA Samsung SSD 840 Series 250 GB SATA Samsung 860 EVO 1 TB SATA Windows 10 x64 Prof.
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chememan
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Re: X79 Dark and G.skill 2400 memory
Monday, January 27, 2014 8:04 PM
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Try raising the voltage on the memory itself, my 1.5v memory needed 1.6v before it would pass stress testing.
4930K @ 4.6 X79Dark + 4x4 G-Skill 1900-C9 + 780Ti Classified + 840 Pro SSD + AX1200 + HAF 932 W3540 @ 4.4g on H2O + EVGA E760 Classified + 3x2GB G-Skill Perfect Storm 2133 + 2x EVGA GTX480SC in SLI on H2O + Intel X25-M 160 G2 + WD Velociraptor 300 + Corsair AX1200 + HAF 932 3570k 4.5 on H2O + Z77FTW + GTX480SC + G.SkILL 1800 + Intel X25M + Corsair HX850 + HAF 932 3770k 4.6 on H20 + Z77FTW + GTX480SC + G.SkILL 1800 + Intel 520 + CM1000+ HAF 932 HEATWARE 
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sgtharry
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Re: X79 Dark and G.skill 2400 memory
Monday, January 27, 2014 8:24 PM
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+1 on both of those suggestions.
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VIPERIXIX
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Re: X79 Dark and G.skill 2400 memory
Monday, January 27, 2014 11:35 PM
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I upped the VCCIO to 1.056 and dim voltage to 1.70. memory says 1.65v but now I get a post and runnin good so far with no load
i7 4960X X79 Dark (EVGA) G.Skill 64GB 2400mhz Intel 520 SSD (4) Raid 0 1000W PSU (EVGA) W7 Pro 64 bit
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chememan
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Re: X79 Dark and G.skill 2400 memory
Tuesday, January 28, 2014 9:09 PM
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I am very glad that you were able to post. Now that you have gotten this far, start lowering that DIMM voltage and see how low you can go. I would not be happy with it higher than 1.65 long term.
4930K @ 4.6 X79Dark + 4x4 G-Skill 1900-C9 + 780Ti Classified + 840 Pro SSD + AX1200 + HAF 932 W3540 @ 4.4g on H2O + EVGA E760 Classified + 3x2GB G-Skill Perfect Storm 2133 + 2x EVGA GTX480SC in SLI on H2O + Intel X25-M 160 G2 + WD Velociraptor 300 + Corsair AX1200 + HAF 932 3570k 4.5 on H2O + Z77FTW + GTX480SC + G.SkILL 1800 + Intel X25M + Corsair HX850 + HAF 932 3770k 4.6 on H20 + Z77FTW + GTX480SC + G.SkILL 1800 + Intel 520 + CM1000+ HAF 932 HEATWARE
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willybill
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Re: X79 Dark and G.skill 2400 memory
Tuesday, January 28, 2014 11:43 PM
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My GSkill 2400 memory calls out for minimum 1.65 V on the box aand I run it .015V over that stable and passes all stress test I have thrown at it. I have 4 x 8 gb sticks.
WB
System:
Thermaltake Level 10 case
Dark Mobo
I7 4930 Chip @ 4.5 GHz-1.215V
Gskill 2400 ram at 2400 - 4 x 8 mb
Kraken X60 cooler/NZXT Fan Controller
2 x EVGA GTX760 4mb FTW Dual Bios in SLI
Samsung EVO 240 GB SSD
WD 1 TB Black
PC Power & Cooling 750 W Supply
Win 7 Ultimate
Samsung DVD Burner
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bdary
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Re: X79 Dark and G.skill 2400 memory
Wednesday, January 29, 2014 3:15 PM
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willybill
My GSkill 2400 memory calls out for minimum 1.65 V on the box aand I run it .015V over that stable and passes all stress test I have thrown at it. I have 4 x 8 gb sticks.
WB
System:
Thermaltake Level 10 case
Dark Mobo
I7 4930 Chip @ 4.5 GHz-1.215V
Gskill 2400 ram at 2400 - 4 x 8 mb
Kraken X60 cooler/NZXT Fan Controller
2 x EVGA GTX760 4mb FTW Dual Bios in SLI
Samsung EVO 240 GB SSD
WD 1 TB Black
PC Power & Cooling 750 W Supply
Win 7 Ultimate
Samsung DVD Burner
Glad to hear you're ram is running good...  With ram rated at 1.65v, there's no problem running up where you're at. I would feel comfortable running it up to 1.70v if it needed it.
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chememan
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Re: X79 Dark and G.skill 2400 memory
Wednesday, January 29, 2014 5:45 PM
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On the post he stated that he was running it at 1.70v, and that is higher than I would like to see, long term, without increasing the voltage on the IMC. I do not think that 1.7v will damage the RAM, I have been told that there is a maximum differential between the Ram voltage and the IMC voltage. I think that the magic number is to stay within 0.5v apart. I think these boards usually run ~1.15v, so adding the .5v gives you a 1.65v max, unless you increase the IMC voltage to 1.2v which I think is the recommended max.
4930K @ 4.6 X79Dark + 4x4 G-Skill 1900-C9 + 780Ti Classified + 840 Pro SSD + AX1200 + HAF 932 W3540 @ 4.4g on H2O + EVGA E760 Classified + 3x2GB G-Skill Perfect Storm 2133 + 2x EVGA GTX480SC in SLI on H2O + Intel X25-M 160 G2 + WD Velociraptor 300 + Corsair AX1200 + HAF 932 3570k 4.5 on H2O + Z77FTW + GTX480SC + G.SkILL 1800 + Intel X25M + Corsair HX850 + HAF 932 3770k 4.6 on H20 + Z77FTW + GTX480SC + G.SkILL 1800 + Intel 520 + CM1000+ HAF 932 HEATWARE
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bdary
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Re: X79 Dark and G.skill 2400 memory
Wednesday, January 29, 2014 6:24 PM
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Yeah, that was the rule of thumb back in the X58 days, although according to some, they ran higher than the .5v max difference with no ill effect.
One observation I've had with the Dark, is that the VSA & VCCIO voltages in some circumstances, will run up around 1.24 to 1.26v when left on auto. When the ram is left at the defualt of 1333 (at least it is for my SB-e), the default voltages are much lower (around 1.0 -1.06). As soon as I raise the ram to anything higher like 1600 or 1866 etc., those 2 voltages rise to what I mentioned above. Yet the supposed safe max is 1.20v for 24/7 use.
I have to manually set mine to keep them under 1.20v.
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XS_SAE
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Re: X79 Dark and G.skill 2400 memory
Wednesday, January 29, 2014 6:43 PM
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Auto is like giving some electronic logic full control over your car imho. You'll never know what rules the programmer was following and have to trust on something you do not know. Kind of a black box. Just try to set it manually and either start from stock value or from max recommended value and work your way to its sweet spot.
eVGA X79 Dark BIOS v2.09 i7 4820K @4.5-4.65GHz HT on 1.3-1.36V 4x8GB Team Group Xtreem DDR3-2666 CL11 @26xxMHz @11-13-13-30@1.655V fast subs EVGA GTX 680 SC Signature@1280/3720 sys @ silent custom loop in LL PC-D600B Corsair HX1000
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bdary
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Re: X79 Dark and G.skill 2400 memory
Wednesday, January 29, 2014 6:52 PM
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XS_SAE
Auto is like giving some electronic logic full control over your car imho. You'll never know what rules the programmer was following and have to trust on something you do not know. Kind of a black box. Just try to set it manually and either start from stock value or from max recommended value and work your way to its sweet spot.
That's why I don't use auto. My point was more about the 1.20v max for IMC voltage, yet left on auto, you get quite a bit higher...
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XS_SAE
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Re: X79 Dark and G.skill 2400 memory
Wednesday, January 29, 2014 6:59 PM
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Ah I see. I was confusing it. xD
I am running an effective 1.235V btw and I am not worrying. I need a lil more as I am running 32G.
eVGA X79 Dark BIOS v2.09 i7 4820K @4.5-4.65GHz HT on 1.3-1.36V 4x8GB Team Group Xtreem DDR3-2666 CL11 @26xxMHz @11-13-13-30@1.655V fast subs EVGA GTX 680 SC Signature@1280/3720 sys @ silent custom loop in LL PC-D600B Corsair HX1000
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