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P67 - difference in having 2 vs 4 mem slots in use

post #1 of 9
Thread Starter 
So I want to get 8gigs of RAM for my SB build, and while I don't have plans to OC immediately, I'm going to want to down the road. How much difference will there be between having 2x4 vs 4x2? I've heard motherboards can have difficulty when OCing with all ram slots in use.

Thanks!
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post #2 of 9
I haven't come across any difference between 8Gb of RAM and 4GB of RAM as these aren't particularly large quantities of RAM anymore. 12-16GB, then I would say there is a difference.

Just make sure you get at least DDR3 1600 with a low case latency.
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post #3 of 9
Thread Starter 
Thank you for the suggestion for 1600. I guess what I was more trying to get at is the difference between using 2x 4gb sticks and 4x 2gb sticks (having 1/2 of the RAM slots in use or all 4). I've read multiple posts on the this site where people have said mobos can have difficulty when all slots are in use when they are OCing, but I haven't come across any articles documenting it / I can't tell if its myth or truth =D
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post #4 of 9
Ive heard the same thing. Its suppose to be putting more stress on the memory controller with 4 sticks.
For what its worth ive OCed with 2 sticks and 4 sticks and I couldnt tell it hurt anything.
I have two sticks now though.
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post #5 of 9
How would OP get on. If he just got one 4GB stick now! And later got another stick!
OK, he wouldn't have dual channel until he got the second stick. But would runing just one stick for a while, matter much?
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post #6 of 9
Quote:
Originally Posted by whitehawk;12065323 
So I want to get 8gigs of RAM for my SB build, and while I don't have plans to OC immediately, I'm going to want to down the road. How much difference will there be between having 2x4 vs 4x2? I've heard motherboards can have difficulty when OCing with all ram slots in use.

Thanks!

It´s a bit more stressful for the IMC to handle memory in all slots and you may not reach 2133MHz with 4x2Gb but if you planing on just OC 4x2Gb of ram to 1600 or 1866 it should probably be okay, one never know until one have tested it.

attachment.php?attachmentid=191243&stc=1&d=1295511242

Source



I say go for 2x4Gb, price is okay compare to 4x2Gb and there are some with good speed and timing at 1,5v, check out these G.Skill for example, G.Skill Ripjaws-X 2x4Gb 1600C8 @ 1,5v one might be able to push them to 1866C8 @ 1,65v or even 2133 C9 @ 1,65v and colour of those G.Skill should be nice together with your P8P67 Deluxe.
.
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post #7 of 9
I would strongly advise against 4x2gb. It usually requires more voltage and looser timings.
Edited by cmeeks - 1/20/11 at 8:14am
    
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post #8 of 9
There seems to be no difference in performance from using all 4 slots even with denser DIMMs:

http://www.bit-tech.net/hardware/memory/2011/01/11/the-best-memory-for-sandy-bridge/1
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post #9 of 9
Quote:
Originally Posted by BizzareRide;12066208 
I haven't come across any difference between 8Gb of RAM and 4GB of RAM as these aren't particularly large quantities of RAM anymore. 12-16GB, then I would say there is a difference.

Just make sure you get at least DDR3 1600 with low timings.

fixed
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