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1.65v RAM on a Z77 motherboard - Page 3

post #21 of 29
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Fair enough. So 1.15 is safe despite the red warning in the bios?
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post #22 of 29
Quote:
Originally Posted by Robilar View Post

Fair enough. So 1.15 is safe despite the red warning in the bios?

it's still yellow at 1.15v in my ROG BIOS if it comforts you smile.gif
post #23 of 29
Swag's Ivy Bridge OC Guide ~ Asus Edition

That's a link to my Asus/Ivy Bridge Guide. There's a tab in the OP of max voltages safe for use on the Asus motherboards. Even if they show red, just follow the guidelines. smile.gif

Also, for Vdimm, 1.65 is definitely safe. I ran 1.7v for quite a long time to maximize the clocks and timings on my sticks but over time, I decided that I didn't really need it. Although doing that, to this day, my RAM can still run at 1.7 with the same speeds and timings so no degradation has occurred! thumb.gif
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post #24 of 29
Quote:
Originally Posted by Swag View Post


Also, for Vdimm, 1.65 is definitely safe. I ran 1.7v for quite a long time to maximize the clocks and timings on my sticks but over time, I decided that I didn't really need it. Although doing that, to this day, my RAM can still run at 1.7 with the same speeds and timings so no degradation has occurred! thumb.gif

same here smile.gif
However instead, I switched a while ago to a 2x8GB RAM kit from AMD (yeah I know LOL!) running 1866MHz at 1.50V and weird (working properly!) Command Rate of 3T, really good ram kit, very good performance, comparable (if not better) to my older Mushkin 2x4GB kit rated for 2000MHz CL9 1.65V
post #25 of 29
All the time I'vesspent testing real world effects of memory speed/timing combos, and the one consistent effect was an increase in minimum frame rate, between as low as a 20pct and high as a 280pct increase (10-28 for example).
The best "out of the box" setting I found for my IVB rig (3770K@5.0, UP7, 2x680Ltg SLI) are the Trident X 2400 9-11-11.

Based on your serial numbers, you have Samsung IC's, can't say with certainty which though. I had no trouble getting the 10-12-12 kit to run 9-10-11 1T @ 1.625v, worth a shot. The 2400C9 I've benched upward of 2864 10-14-11-22 1T with just 1.695v.

Very flexible kits!
   
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post #26 of 29
Quote:
Originally Posted by feniks View Post

Quote:
Originally Posted by Swag View Post


Also, for Vdimm, 1.65 is definitely safe. I ran 1.7v for quite a long time to maximize the clocks and timings on my sticks but over time, I decided that I didn't really need it. Although doing that, to this day, my RAM can still run at 1.7 with the same speeds and timings so no degradation has occurred! thumb.gif

same here smile.gif
However instead, I switched a while ago to a 2x8GB RAM kit from AMD (yeah I know LOL!) running 1866MHz at 1.50V and weird (working properly!) Command Rate of 3T, really good ram kit, very good performance, comparable (if not better) to my older Mushkin 2x4GB kit rated for 2000MHz CL9 1.65V

One thing I will tell you about RAM is that right now, you're going to get the most out of it by using a Command Rate of 1T. Every kit should be tuned for 1T and then all other clocks based on that. Running a 3T Command Rate will slow down process time quite a lot.
Quote:
Originally Posted by nleksan View Post

All the time I'vesspent testing real world effects of memory speed/timing combos, and the one consistent effect was an increase in minimum frame rate, between as low as a 20pct and high as a 280pct increase (10-28 for example).
The best "out of the box" setting I found for my IVB rig (3770K@5.0, UP7, 2x680Ltg SLI) are the Trident X 2400 9-11-11.

Based on your serial numbers, you have Samsung IC's, can't say with certainty which though. I had no trouble getting the 10-12-12 kit to run 9-10-11 1T @ 1.625v, worth a shot. The 2400C9 I've benched upward of 2864 10-14-11-22 1T with just 1.695v.

Very flexible kits!

Samsung RAM is really good. However, you're better off waiting for DDR4 to come out right now. RAM prices have increased about 100% the last year. When I bought my 16GB kit, I spent $50 on it. Right now, a 16GB kit is $150+.
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post #27 of 29
Quote:
Originally Posted by Swag View Post

One thing I will tell you about RAM is that right now, you're going to get the most out of it by using a Command Rate of 1T. Every kit should be tuned for 1T and then all other clocks based on that. Running a 3T Command Rate will slow down process time quite a lot.


nope, actually the performance of 3T CR kits is similar to older 1T kits. I know it's pretty unbelievable, but that's the way it is with 3T unlike the 2T, probably with same clocks/timings and speed I would rate the actual bandwidth like 1T>3T>2T where difference between 3T and 1T is quite small (some things fatser, other slower, not directly comparable) and 2T lagging way behind.

here, I took some tests back in the day and compared it to my Mushkin kit running 1T:
http://www.overclock.net/t/1448541/what-makes-amd-radeon-1866-2x8gb-kit-so-fast-per-aida64-benchmark
post #28 of 29
Nice info, will keep that in mind. smile.gif +rep
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post #29 of 29
Quote:
Originally Posted by Swag View Post

Nice info, will keep that in mind. smile.gif +rep

thanks buddy smile.gif

As I wrote in the other thread, I was myself very (positively) surprised when test-running that 3T kit LOL! Not long before that I learned about 3T kits existence from Mushkin Tech Sean, he mentioned in Mushkin forums that 3T is kinda awesome and look out for those ... well, he was not wrong (and I considered it doubtful when he said so), not to mention that I wasn't even expecting average performance from AMD Radeon memory kit at all, it was all a very good experience and still is, running it 24/7 since then and I love those sticks biggrin.gif
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