Kingston DDR3 1600Mhz

Check the cas rating. 7 is faster than 9. Frys has some kingston 2x2 gb ddr3 1600 for $49.99 after rebate, good until tomorrow in stores.

I checked on Kingston.com it has detailed info over things(for every motherboards best suiting ram), and since i need this for HTPC I'm going with the blu edition 2x2. Thanks for the reply  

Rondeil

You need to verify that whatever RAM you choose is either Certified {QVL} or Tested per RAM Mfg or send the RAM Mfg a Ticket requesting compatibility. Also, not ALL AMD CPUs are alike, the 6-core has it's own 'approved list.'

We need more info about your RAM a 'link' would be great. The Blu are a newer model, and considered their Entry level {a/k/a cheap}.
Kingston HyperX Blu - http://www.kingston.com/hyperx/products/blu.asp
Kingston HyperX Genesis - http://www.kingston.com/hyperx/products/khx_ddr3.asp

There are (5) MSI MOBOs; I checked 3 all the same list:

MSI 785GM-E51 Kingston - http://www.ec.kingston.com/ecom/configurator_new/models...

Faster Kingston List - http://www.ec.kingston.com/ecom/hyperx_us/modelsinfo.as...

Kingston HyperX 4GB (2 x 2GB) DDR3 1600 (PC3 12800) KHX1600C9AD3K2/4G http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Corsair AMD tested - http://www.corsair.com/products/phenomii/default.aspx
CORSAIR DOMINATOR 4GB (2 x 2GB) DDR3 1600 (PC3 12800) CMP4GX3M2B1600C8 http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Wow its nearly the same research i made   the mobo I'm buying is exactly 785gm e51, thats what I entered on kingston's site. The only problem is that Corsair is somewhat more expensive, but if is amd tested than the hell with the price, I'm going with corsair ofcourse.

One other thing.. I'm getting amd athlon II x2 240 so, it's good with it too right?

(when i meant expensive i meant more expensive than the blu, nearly same with the genesis, nvm that though)

Thank you a bunch jaquith.

My Motto "Do it Right..." therefore I don't guess - open a Ticket with Corsair to confirm, or any RAM Mfg (better to be 100% than have an issue), Ticket - http://www.corsair.com/helpdesk/default.aspx
It takes 5 minutes and they respond within hours.

I am very careful about recommending RAM unless I KNOW: Certified/Tested/Ticket.

Good Luck on your Build!  

ok... i went to the link, i entered the ram i can buy CMX4GX3M2A1600C9, went to the next step, entered that the mb is msi and I can't find 785GM-e51, there are 790g, gx, 890gx.. and lots of others, but three times I went through them I didn't find it ...

does this mean that it's not compatible with corsair CMX4GX3M2A1600C9 ?

Thanks for the help.

No just enter "My Motherboard is not listed" and proceed...Their internal list has ALL MOBO's; I've bitched at them to model Crucial's configuration which is the best ... just not their memory which is fine but not outstanding either...

Ok Thanks again, it helped.