Ram voltage advice

[Richard Shepherdson]

Just seeking a little advice on ram voltages.

When multiple sticks of ram are used on a board, is there a need to increase the voltage, i.e does the voltage drop slightly when more than 1 stick is use?

I have at the moment 4 Gb of Crucial Ballistix (2x2 Gb). Board is Gigabyte DS3. Running ram at +0.3 (board gives 1.8 and ram requires 2.0) for stable over clock.

When I put in another 4 Gb will I need to increase the voltage slightly or will the board quite happily push 2.1V to all the ram slots (4x2 Gb.)?

Thanks for help guys.

[Undead46]

Depends what the RAM's rated voltages are...

Just keep the voltage set to Auto and you should be fine.

[EarthDog]

Its not the ram (Vdimm) that you increase the voltage on though, its the CPU-NB (amd) or vtt/Qpi (Intel).

[Richard Shepherdson]

I thought auto often over volted components on a board.

Rams rated at 2V by the way, hence I'm giving 0.1 over fot OC stability.

[EarthDog]

Auto does tend to overvolt in favor of stability. but again, when running more sticks, its not the ram you need to add voltage to.

[Richard Shepherdson]

Am I right in thinking that the MCH voltage on a DS3 is the NB voltage.

[EarthDog]

Damn socket 775...

Yes, thats the one.

[Funtoss]

i heard that some ram can go up to 2.1 - 2.2v

[Funtoss]

i wouldnt try it though lol

[slyfox2151]

i used to run DDR2 by Gskill @ 2.22v

[AsRock]

Just use there max rated voltage and be aware that setting your voltage varies.

Example my Asus mobo rams set to 2.02 but is actually running 2.10 and the new MSI mobo it's set too 1.65 but is actually running at 1.613.

[puma99dk|]

i never go over max allowed voltage from the product manufactur ^^

[Chevalr1c]

Originally Posted by Undead46

Just keep the voltage set to Auto and you should be fine.

And that's exactly the reason why there are quite a bunch of people complaining about stability issues with their Crucial sticks. Those modules need to be set manually to the right speed, latency and voltage, because that info is not stored in the SPD profile for some reason.

[Nailezs]

richard, if your ram required 2.0v, running 2.1 or 2.2 will not hurt it
when you run more sticks of ram, depending on the chipset of your motherboard, you may have to increase the voltage to your northbridge. also, you'll need to call the manufactorur of the ram your using and ask what ram timings should be run using 2 kits of said ram
refer to http://www.techpowerup.com/forums/sh...d.php?t=142279 for more info

[Dogshitjoint]

Originally Posted by Chevalr1c

And that's exactly the reason why there are quite a bunch of people complaining about stability issues with their Crucial sticks. Those modules need to be set manually to the right speed, latency and voltage, because that info is not stored in the SPD profile for some reason.

That makes a lot of sense as I have had issues in the past with an old Crucial BallistiX DDR2 PC8500 2x1GBkit when OCing a E6550 on a Gigabyte P35C-DS3R...as the rig worked great for some months but suddenly without warning BSOD!

I figured out by reading on various forums that the mems got stuck in an "infinite loop" [in the BIOS ofc.]

I also remember having tried everything (the usual + unusual ways) to get my BIOS/CMOS settings cleared but the system refused to POST
So well I gave up on trying.

However about a year or two after me giving up, I gave the old system a final chance, I slapped one stick of Kingston 1GB DDR2 PC6400 on the mobo the BIOS got cleared & finally I could run the system (The platform is now in my opinion almost [as I have no PSU/Case 4 it] obsolete & thus stuffed + packaged in my warderobe [Sadly]).

Well enough with the storytelling, I just wanted to give some kind of input/feedback.

Thanks Chevalr1c & all other writers...



//Dog

[Chevalr1c]

Originally Posted by Dogshitjoint

Thanks Chevalr1c

Yer welcome