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Samsung 2x4Gb Low Voltage DDR3 1600 kit (OCing to 2400+) Discussion - Page 83

post #821 of 2062
are there 2 different types of ram modules that take different voltage?

The 30 nm memory ICs are manufactured by Samsung, commonly referred to as "D-die" and have two voltage modes, 1.35 V, and 1.5 V. The two different voltage modes and supporting DIMMs do use the same memory IC, so attempting to use the higher voltage setting on 1.35 V sticks maybe provides some success when overclocking, but seemingly the low-profile PCB prefers 1.35 V, and the "regular" PCB prefers 1.5 V. Both types can be purchased currently at very low prices.

http://www.techpowerup.com/reviews/Samsung/MV-3V4G3/6.html
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post #822 of 2062
Quote:
Originally Posted by jrcbandit View Post

Ivy bridge here, I5 3570 and Asrock Z77 Professional. I can't seem to get anything stable above 1866, which I am running at 8 9 9 24 1.45V. I may try lowering the voltage some more and tighter timings, although 8 8 8 24 did not work.
My previous ram was at 1600 mhz and 9 9 9 24 timing, so I was hoping for a larger increase, but will 2133/2400 really offer any real world improvement over 1866 if I have to use slower timings? Changing the voltage around did not seem to help, but I did not test above 1.625V. I might try again with looser timings, as I was mostly testing 10 10 10 28, although I did try 11's for a bit.

Nope, you won't see any noticeable real world performance gains with overclocked RAM unless you're doing things that are RAM-intensive. For most applications or games, 1600mhz with 9-9-9-24 timings will be quick enough.

Quote:
Originally Posted by homestyle View Post

are there 2 different types of ram modules that take different voltage?
The 30 nm memory ICs are manufactured by Samsung, commonly referred to as "D-die" and have two voltage modes, 1.35 V, and 1.5 V. The two different voltage modes and supporting DIMMs do use the same memory IC, so attempting to use the higher voltage setting on 1.35 V sticks maybe provides some success when overclocking, but seemingly the low-profile PCB prefers 1.35 V, and the "regular" PCB prefers 1.5 V. Both types can be purchased currently at very low prices.
http://www.techpowerup.com/reviews/Samsung/MV-3V4G3/6.html

This thread is specifically for the 30nm 1.35V sticks and most of us do use it at 1.5V or higher in order to reach 1866mhz or 2133mhz. Though I've seen some people here succeed in reaching those speeds at 1.35~1.45V.
    
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post #823 of 2062
Quote:
Originally Posted by Kokin View Post

Quote:
Originally Posted by jrcbandit View Post

Ivy bridge here, I5 3570 and Asrock Z77 Professional. I can't seem to get anything stable above 1866, which I am running at 8 9 9 24 1.45V. I may try lowering the voltage some more and tighter timings, although 8 8 8 24 did not work.
My previous ram was at 1600 mhz and 9 9 9 24 timing, so I was hoping for a larger increase, but will 2133/2400 really offer any real world improvement over 1866 if I have to use slower timings? Changing the voltage around did not seem to help, but I did not test above 1.625V. I might try again with looser timings, as I was mostly testing 10 10 10 28, although I did try 11's for a bit.

Nope, you won't see any noticeable real world performance gains with overclocked RAM unless you're doing things that are RAM-intensive. For most applications or games, 1600mhz with 9-9-9-24 timings will be quick enough.

Quote:
Originally Posted by homestyle View Post

are there 2 different types of ram modules that take different voltage?
The 30 nm memory ICs are manufactured by Samsung, commonly referred to as "D-die" and have two voltage modes, 1.35 V, and 1.5 V. The two different voltage modes and supporting DIMMs do use the same memory IC, so attempting to use the higher voltage setting on 1.35 V sticks maybe provides some success when overclocking, but seemingly the low-profile PCB prefers 1.35 V, and the "regular" PCB prefers 1.5 V. Both types can be purchased currently at very low prices.
http://www.techpowerup.com/reviews/Samsung/MV-3V4G3/6.html

This thread is specifically for the 30nm 1.35V sticks and most of us do use it at 1.5V or higher in order to reach 1866mhz or 2133mhz. Though I've seen some people here succeed in reaching those speeds at 1.35~1.45V.

I run mine @ 2260 mhz 9-10-10 / 1.64v. Has been stable for months and i dont really care if i kill it because its so darn cheap.

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post #824 of 2062
Thread Starter 
This thread has been moved from the F/S section to the Intel memory section.
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post #825 of 2062
anyone have a 2x4gb set they want to sell? im sure some of you went overboard and have a pair laying around biggrin.gif
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post #826 of 2062
I haven't been keeping up with things I guess, i knew samsung made ram but not that they sold it under their own name. Now today I have seen many people talking about it.

These look very good. Is there any competition for them at all? Should I try to get these instead of anything else? Also, do you guys put a heat spreader on them or not?
post #827 of 2062
well, the best I could do is 9/9/9/27/2t 1866 @ 1.5v. I wanted to keep it at 1.35v (which at that voltage i could get 1800/10/10/10/28/2t) but my motherboard z77 ud5h always resets the voltage to 1.5v after i shutdown and start


well, even that isnt stable, time to do more testing......i would think at 1.5v it would work.....is everybody doing a hyperpi 32m test or ibt to make sure they're timings work? This is getting frustrating
Edited by Silver5656 - 5/23/12 at 6:31am
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post #828 of 2062
Hi, I was able to boot into windows 7 64 bit this morning with 9-10-10-24 @ 1.59v 2133mhz.

Now, I cant even boot using stock 11-11-11-28 2133mhz @ 1.6v.

Can my motherboard even overclock above 1666mhz at all? I have a z77x-ud3h.
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post #829 of 2062
lower the voltage
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post #830 of 2062
Quote:
Originally Posted by toaad View Post

I have a question for those running 16GB of this kit and running at 2133mhz. FWIW I have 4x4 sticks of batch 1211.
I can't seem to get them stable at 2133mhz even at 10-10-10-28 or 11-11-11-28 even with 1.55v, I can do 1866mhz 9-9-9-24 @1.44v no problems, but with 16GB is it my CPU IMC holding me back?
My VTT voltage between 1.00-1.20v does not seem to make any difference either.
Any tips?

Try scaling back to 2 sticks and switching slots n stuff
1.11-1.14 usually works for me
Hope you don't subscribe to the "lower cpu pll" stuff
 
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