RAM Upgrade - Need Help

[bfsminid]

I would like to get more RAM and go from 4GB to either 8GB or 16GB.

I currently have:
Mobo: MSI 870-G54 AM3 AMD 870 (Native
http://www.newegg.com/Product/Product.aspx?Item=N82E16813130275
RAM: 4 GB (2x2GB) G.Skill Ripjaw DDR3 1600 Cas Lat: 9 for $29.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231277
Processor: AMD Athlon II x3 440 Rana 3.0GHz

I am upgrading my Processor to an AMD Phenom II x4 980 3.7GHz
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103935

The question I have is regarding memory speed (1333 vs 1600 (OC)). As you can see I currenlty have 2x2GB 1600 that are running at 1600, if I were to buy the same RAM I have now to make it 4x2GB, filling all 4 slots with the G.Skill Ripjaw DDR3 1600, will I still be able to run at 1600, or will it knock it down to 1333? My only reserve is that I won't be able to get 16GB.

The reason I ask is if it's going to go down to 1333, would I be better off buying G.SKILL Ripjaws Series 8GB (2 x 4GB) DDR3 1333 with a better Cas Lat of 7 for $49.99? http://www.newegg.com/Product/Product.aspx?Item=N82E16820231402 Or another option I have in mind is to buy G.SKILL Ripjaws Series 8GB (2 x 4GB) DDR3 1600 in hopes of keeping it at 1600 since it's only using 2 sticks. http://www.newegg.com/Product/Product.aspx?Item=N82E16820231314

thanks for the help!
BFSMiniD

 

[sosofm]

Buy the 8GB RAM ( 2 X 4GB) who is like your 4GB http://www.newegg.com/Product/Product.aspx?Item=N82E16820231314.

 

[bfsminid]

Thanks for the reply.

Is speed that more important than CL?

 

[sosofm]

In real life aplications you don't see the diferences, just in benchmarks.In some aplications is important the quantity.

 

[bfsminid]

Okay, thanks for the help!

 

[bfsminid]

To go back to my first question, if my board is native 1333, am I able to run 4X2GB and keep it at 1600? For some reason I remember reading that if I used 4 sticks of RAM it would default back down to 1333 instead of keeping it at 1600 (OC).

 

[sosofm]

You can run at 1600Mhz just with overclock. Native will be set automatic by your mobo at 1333Mhz.I recommended you to buy the same RAM like your for a better compatibility. And in the future if you change you PC you can keep the RAM.