Different Ram Can they use together?

bibijason

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Apr 3, 2014
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Now i was currently using Corsair XMS2 x2048 - 6400C5DHX , and i still have 2 slot more left which is i gonna put another 2 pcs of DDR2 ram for it. But the problem is i can't found any same brand and model ram already, may i know which can match together use with them? Kingston 2GB 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Desktop Memory Model KVR800D2N5/2G ? or CORSAIR XMS2 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model TWIN2X4096-6400C5 ?

Which should be better?