I bought two 4GB sticks of Crucial Ballistix Sport DDR3 @ 1600MHz. My system recognized it immediately at 1600 MHz and it works great.
And I can't believe it was only $40. Thanks!
Your welcome, Sorry I wasn't receiving any emails on this topic, so I didn't reply. Crucial Ballistix is a vary good brand. I have never ran into problems with Crucial. I have run into a lot of problems with that Munchkins and Corsair, But they were easily RMA'd and never had a problem since with my current Corsair Vengeance 1600mhz