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Pros & Cons of 1.35v, 1.5v & 1.65 Memory (X79 DDR3 SB-E 24/7 stable overclock 3930K)

post #1 of 27
8/9/12 at 6:08pm
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I see tons of posts explaining mixing ram voltages but, nothing comparing 1.35v, 1.5v & 1.65v DDR3 RAM Memory for the purpose of X79 quad channel Sandy Bridge E Overclocking. long winded enough?

I guess my true question is how will these 3 different voltages affect the overall performance of the machine & what RAM specs would be best for a 24/7 say 4.5-4.7ghz overclock?

I gather low voltage means less power consumption and more voltage equals more but how does the voltage affect the ability to overclock?

Machine I'm building for my first build is:

Mobo: ASRock X79 Extreme9
CPU: 3930k
GPU: gtx 670 4gb
RAM: considering Corsair Dominator GT 2133mhz DDR3 cas=9 1.5v
PSU: Seasonic X1050
CASE: CM Storm Trooper
COOLER: H80
SSD: Samsung 830 256gb for Boot Windows 7
HDD: caviar black 2TB x 4 raid 0+1

Thanks in advance for some clarification here.
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post #2 of 27
8/9/12 at 6:14pm
I've been wondering the same thing...
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post #3 of 27
8/9/12 at 6:16pm
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I would say Samsung 1600 ram chips $50 for 2x4gb 1.5v at 2133mhz 10-10-10-28 (24/7 stability)

1600mhz at 1.35v and tigher timings..

Its a done deal.. I got 4 sticks of them and there all great if you dont care about the looks.

On the note of v from 1.35 to 1.6... I doubt anyone can say there is a difference in performance. Some ram chips need moar voltage just like some cpus need more vcore..

Ultimately for 24/7 use the lower the volts the cheaper your bill will be (doubt by much) and the less stress on the psu (if any)..
Edited by JMattes - 8/9/12 at 6:19pm
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post #4 of 27
8/9/12 at 7:21pm
Thread Starter 
Quote:
Originally Posted by JMattes View Post

I would say Samsung 1600 ram chips $50 for 2x4gb 1.5v at 2133mhz 10-10-10-28 (24/7 stability)
1600mhz at 1.35v and tigher timings..
Its a done deal.. I got 4 sticks of them and there all great if you dont care about the looks.
On the note of v from 1.35 to 1.6... I doubt anyone can say there is a difference in performance. Some ram chips need moar voltage just like some cpus need more vcore..
Ultimately for 24/7 use the lower the volts the cheaper your bill will be (doubt by much) and the less stress on the psu (if any)..

Okay, I get that you can manipulate the ram voltage to increase/decrease timings.
How does the ram base voltage affect the CPU's ability to overclock? Is there any difference in reliability as far as stress on the ram chip in higher base voltage ram chips?



My first build....ugly ram? Ha! Lol. Thx for the offer.
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post #5 of 27
8/9/12 at 7:27pm
Hey,

THIS is the kit of RAM you want to look at. Best darn overclockers on the market, as of now, and as of two-three months or longer, ago. It can do 2133+ Mhz with almost no voltage bump. Get $20 and buy THESE Ram-sinks for them. Then you'd be an OC'ing machine.

BTW: You're welcome. thumb.gif
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post #6 of 27
8/9/12 at 7:36pm
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Lol thats the same ram I recommended..

As far as reliability.. I dont think its so much the voltage as the higher the mhz on the ram the harder it is to get everything stable.. the higher the voltage the more heat it puts out.

I like to look at cpu oc and ram oc as 2 different things and any good guide will tell you to run the ram stock first. Get the CPU oc to where you want it then keep increasing the mhz and then tighten the timings.. however the higher the mhz the looser timings normally have to get to keep it stable, but with the newer cores timing isnt everything..

I mean your question is solid and very uncommon or atleast in my opinion. Most people just dont get hung up on voltages of ram I guess. Then again I dont think most people know what good ram is..
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post #7 of 27
8/9/12 at 9:20pm
Thread Starter 
Quote:
Originally Posted by JMattes View Post

I would say Samsung 1600 ram chips $50 for 2x4gb 1.5v at 2133mhz 10-10-10-28 (24/7 stability)
1600mhz at 1.35v and tigher timings..
Its a done deal.. I got 4 sticks of them and there all great if you dont care about the looks.
On the note of v from 1.35 to 1.6... I doubt anyone can say there is a difference in performance. Some ram chips need moar voltage just like some cpus need more vcore..
Ultimately for 24/7 use the lower the volts the cheaper your bill will be (doubt by much) and the less stress on the psu (if any)..

I didn't catch a link from you on the chips. I just heard ugly, lol. I check those out.
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post #8 of 27
8/9/12 at 9:27pm
Thread Starter 
Quote:
Originally Posted by Nvidia-Brownies View Post

Hey,
THIS is the kit of RAM you want to look at. Best darn overclockers on the market, as of now, and as of two-three months or longer, ago. It can do 2133+ Mhz with almost no voltage bump. Get $20 and buy THESE Ram-sinks for them. Then you'd be an OC'ing machine.
BTW: You're welcome. thumb.gif

Ok, thx for the link. Those heatsinks def de-ugly those chips for sure ::thumbsup:: So, those 1.35v chips consistently OC to 2133mhz @ ~1.5v? Ive become aware that your ram OC is only as strong as the weakest link. NO issues with buying 2 sets "4 x 4gb" seeing as they're not quad channel matched sets? Kinda like the security knowing they'll all be strong. I'm guessing it's. It an issue considering they're #1 in the market; so the ad says?
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post #9 of 27
8/9/12 at 9:34pm
Thread Starter 
Quote:
Originally Posted by JMattes View Post

Lol thats the same ram I recommended..
As far as reliability.. I dont think its so much the voltage as the higher the mhz on the ram the harder it is to get everything stable.. the higher the voltage the more heat it puts out.
I like to look at cpu oc and ram oc as 2 different things and any good guide will tell you to run the ram stock first. Get the CPU oc to where you want it then keep increasing the mhz and then tighten the timings.. however the higher the mhz the looser timings normally have to get to keep it stable, but with the newer cores timing isnt everything..
I mean your question is solid and very uncommon or atleast in my opinion. Most people just dont get hung up on voltages of ram I guess. Then again I dont think most people know what good ram is..

I've dedicated most of my life educating myself on certain obsessions. My first build with OC as the goal is my current one. I guess I'm trying to pick everything apart before diving into any purchases. I'm really impressed by this community and am happy to be affiliated with the geniuses of the art.

Oh, and thanks again to all. thumb.gif
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post #10 of 27
8/9/12 at 9:43pm
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eh..The Samsung RAM is good..If you want better..be prepared to pay top dollar+

There's these, too http://www.newegg.com/Product/Product.aspx?Item=N82E16820231587
not as pricey as I thought..the timings sicksmiley.png
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