Fast 1.6V+ RAM compatibility with Haswell

cerebralhigh

cerebralhigh

cerebralhigh

Associate
Joined
1 Mar 2014
Posts
61
Hi all,

New guy here still struggling to get my head around stuff. RAM is particularly confusing!

I've just tried to pair up G-Skill Trident X 2400mhz with the 4670k in PC partpicker. It gives the following advice in the compatibility notes:

"G.Skill Trident X Series 8GB (2 x 4GB) DDR3-2400 Memory operating voltage of 1.65V exceeds the Intel Haswell CPU recommended maximum of 1.5V+5% (1.575V). This memory module may run at a reduced clock rate to meet the 1.5V voltage recommendation, or may require running at a voltage greater than the Intel recommended maximum."

Does this mean that although they are technically compatible, it would be best to avoid using them with Haswell processors? Is there any risk to the CPU or would it simply mean that the RAM wouldn't be able to achieve its maximum 2400mhz? Or neither?

Thanks
 
Hi, thanks for your reply. It's encouraging to hear that you've had no problems as I'm thinking of using some of this RAM myself.

Anyone else have any experience of using this kind of RAM with Haswell? Or have an idea why Intel set the maximum recommended voltage to 1.5V + 5%? I'm wondering if using too high a voltage for an extended period of time will damage the cpu?
 
Not this again!!

1.65 is no problem!!! Never ever has been. It will damage nothing!! Intel certify XMP profiles at 1.65v for many sticks and continue to.

I have used 2.35v on RAM and all my CPU are fine. Not that you guys should use this but its an extreme example of how RAM volts make no difference.
 
So that's pretty conclusive :)

Thanks everyone, looks like I was worrying about nothing. Apologies if this has been raised many times before, I haven't got time to sift through all the old posts.

8 Pack, I'm still very new to all this, can you please explain what you mean when you say "Intel certify XMP profiles at 1.65v for many sticks and continue to"? Is there a page which lists which voltages are viable for which type of processor?

Appreciate the help, thanks
 
You must log in or register to reply here.
Back
Top Bottom