Benefit of 3 RAM sticks?

jbrow22tx

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Jan 24, 2013
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Currently running 8 GB (2x4) corsair veng. LP on Asrock Z77 OC Formula. I have a single 8 GB stick of corsair veng. I got free with mb.

Would I see any improvement, decline, or nil performance adjustment by adding it?


i5 3570k
HD7950 Boost
 

Eximo

Titan
Ambassador
Z77 supports dual channel memory. Your most effective solution would be to buy a second 8GB stick.

If you added 1x8GB and 2X4GB or 2X2G you would have be running the pair in dual channel mode, and the 8GB stick in single channel mode. Basically just halve the bandwidth available to that single stick.

Assuming that such a configuration is supported. Depending on configuration, single sided or double sided memory it may not register some of the memory.
 

JRAtk94

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May 26, 2013
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Unless your motherboard supports triple-channel RAM (which is unlikely, as I don't even know if it exists :lol:), you'd actually see a decrease in performance when using 3 sticks of RAM, as it'll force the RAM to run in (3x) single channel mode. [strike]You'll be running in dual channel mode at the moment[/strike], or (2x) dual channel mode when using 4 sticks.

Best to use it in multiples of 2, in my opinion.

EDIT: Just read that you're using 1 x 8gb stick. As Eximo said, buying another 8gb stick would be the best choice.
 
I disagree.
Install your two 4gb sticks on one channel, and the 8gb stick in the other.
You should run dual channel just fine, since the ram capacity is equal.

However, since you have two different kits, there are no guarantees that they will work properly.
My suggestion is to try it, no harm will come, and more ram is always better.
 

Tradesman1

Legenda in Aeternum
Geofelt hit the nail on the head, I'd go with the 8GB stick in slot 1 and the other 2 in slots 2-4, which provides 8GB in each channel and you'll still be dual channel...if you have any problems, and you might, will prob need a voltage adjustment and maybe a tRFC change in the advanced timings, if so give me a holler
 

kawininjazx

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May 22, 2008
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I have a first generation i7 in my computer, the motherboards all support triple-channel, and they have 6 banks. I believe those were the only ones.



 
Multi channel operation is a function of the motherboard, and not the ram.
Each ram stick is single channel.
In kits, you might get 2 or 3 sticks which can be installed in a motherboard that supports 2 or 3 channel operation.
Current motherboards will support ram installed in channels with different capacities. The ram that is matched across channels will operate in multi channel mode. The odd stick will operate in single channel mode.
single/dual/triple has a minor effect on cpu performance with intel cpu's. It is more important for amd cpu's.