Maximum voltage for DDR3?

[Zubasa]

The title says it all, I would like to know so that I don't fry my ram.

Another side question, how does Ganged mode vs Unganged mode really works?

 

[BradleyKZN]

I see you have the same ram as me. I dont know what the max voltage is for it, but i got mine to run @ 1600mhz at 1.63v i dont know the max because i wont go higher then 1.65 because it will cause long term damage to i7 processors

 

[Zubasa]

Jees, like only one guy answered in 24hrs, no wonder people spam their own posts....

 

[MilkyWay]

what about AMD rigs i think they can go up to like 2v

 

[BradleyKZN]

Jees, like only one guy answered in 24hrs, no wonder people spam their own posts....

and i still wasnt much help

 

[erocker]

List the specifications of your RAM or at least the model number. I'm running my Crucials at 1333 1.8v cas 6. I don't know exactly how ganged vs. unganged works, but you will get better performance in unganged mode.

 

[Zubasa]

List the specifications of your RAM or at least the model number. I'm running my Crucials at 1333 1.8v cas 6. I don't know exactly how ganged vs. unganged works, but you will get better performance in unganged mode.

Corsair XMS3 TW3X4G1333C9
I believe they are this set.
http://www.corsair.com/_datasheets/TW3X4G1333C9.pdf

I am running a 285 Base Clock so I can't get it to run at 1333.

 

[pbmaster]

Ganged vs. Unganged....the way I understand it is that ganged mode uses 1 x 128 bit memory path/controller, where unganged uses 2 x 64 bit paths/controllers. Same principle as a Dual core CPU: 2 brains at slower speeds can do more than 1 brain at a higher speed.

 

[Nailezs]

spec for maximum voltage for ddr3 is 1.65v...however, i have seen OCers goto a higher voltage when their core i7/i5 was overclocked to the extent that they had toup the voltage on the cpu
i think the rule of thumb is +.4v from the processor v is "safe" but dont quote me

 

[ace80]

I think it depends on when you bought them. I mean ddr3 has been out since before i7.
My corsairs are spec'd to run @ 1.8v 1600mhz 9-9-9-24, I have ran them @ 2.0v before for quick bench runs.
Here's mine from the corsair site (the top one) - http://www.corsair.com/products/xms3dhx/default.aspx
And here's a cpuz shot

I'm glad you asked the question and would also like to know the anwser. It would be good to see what peeps without core i5/i7 setups are running through their ddr3 24/7 and while benching.

 

[Zubasa]

Mine are the newer 5.1 version.
Which means its is Jedec spec 1.5V ram.

 

[ace80]

Jedec spec will always be 1.5v, as with ddr2 I believe it was 1.8v, this has nothing to do with the manufacturer of any ram. As you can see mine are also jedec spec'd to 1.5v

I just took a look at the pdf spec sheet for your set and they say 1.6v for normal use -

I reckon you'd be ok upto say 1.8v, just make sure they have nice airflow. I have the ram fan over mine.

 

[Zubasa]

Jedec spec will always be 1.5v, as with ddr2 I believe it was 1.8v, this has nothing to do with the manufacturer of any ram. As you can see mine are also jedec spec'd to 1.5v

I just took a look at the pdf spec sheet for your set and they say 1.6v for normal use -

http://img.techpowerup.org/091019/Capture002089.jpg

I reckon you'd be ok upto say 1.8v, just make sure they have nice airflow. I have the ram fan over mine.

Dude, I got 1.5v from the sticker