I have this:

CORSAIR DOMINATOR 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Triple Channel Kit Desktop Memory Model TR3X6G1600C8D

 

could I replace it with :

http://www.newegg.com/Product/Product.aspx?Item=N82E16820233532

 

or can I just add in this:

http://www.newegg.com/Product/Product.aspx?Item=N82E16820233180

to then have a total of 14Gigs?

 

it would be a whole lot cheaper..

 

please advise.

thanks

 

I would replace it unless you plan to buy the same RAM you already have.

ok.. that is kind of what I thought the answer would be.. 

 

I think I'd rather have a new vid card then more mem right now though.. but thanks.. will keep it in mind down the road.

Given you're using a triple channel kit currently, I take it you're running a 1st Gen i7 on an X58 Motherboard?

 

Since the memory on those boards runs in triple channel, if you can't find a kit the same as what you currently have to add to the system, then I would suggest replacing it and not adding that ram there.

 

It's best practice not to "mix and match" RAM as it can cause issues.

 

Have a browse through this list:

 

http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100006519%2040000147%20600052011%20600006078%20600006127&IsNodeId=1&name=DDR3%201600%20%28PC3%2012800%29

 

Try to get one with the lowest CAS Latency and tightest timing possible.

 

If you're planning on upgrading your whole PC anytime soon though, I'd hold off buying RAM right now since triple channel kits are only relevant for X58 boards.

yeah.. I do want to upgrade the whole enchilada down the road.. so I think I'll hold off.