Ram modules

[Blip]

Good day.

I have a DDR3 1333 4gb module in my pc but want to upgrade with 2 more 4gb modules or a 8gb, i have the Intel DZ68DB MB with a GTX 770 GFX card, the ram mod i have in isnt much to talk about but i am running 64 bit and would like to upgrade the unit a bit, i am looking at 2 x 4gb Corsair CMX8GX3M1A1333C9 XMS3 with heatsink or the Corsair Vengeance Cmz8gx3m1a1600c10 DDR3 1600 8GB Internal Memory. Witch one? and if i go with 2 x 4gb modules extra do i put them in slot 1 and 2 and the third module in slot 3?

Any advice will help.

Thank you

 

[AceSwiftShooter]

either use 2 or 4 slots of your ram slots. they run in pairs. All RAM should be the same spec. If you run different type modules, the MB will downclock them all to the lowest speed module you have.
Either try find 1/3 other modules to match the one you have, or throw it away and get 2x 4Gb, 4x 2Gb, or 4x4Gb.