I think you can get two 1066MHz, however, you can only use one DIMM per channel - i.e., two sticks of RAM, and one in each channel. It would most likely not work with four sticks. Just to note though, the difference between 800MHz and 1066MHz is not noticeable with regards to RAM, only in benchmarks
thank you guys for the help, the clarification I needed was that I couldn't run all 4 dimms at 1066 and my RAM wont work so well with it either. I've been debating upgrading from my am2+ ddr2 Mobo to a AM3 ddr3 board and handing mine down to my Girlfriend to upgrade from her pentium d.(which was going to happen one way or the other with me buying a new am2+ or am3 board and her a Ph2x3 720 BE or 940 BE as the price difference on Newegg is almost nonexistant)
which leads me to an all new question, as the Am3 board requiers i buy new ddr3 ram (most likely A data ddr3 1600), is it really worth cost vs. performance for the 200+ I will need to spend on 8 gigs of new RAM? or would i just be better off buying a nice am2+ board and possibly cross-firing my 5770?
the current setup meets most of my needs rather well, with the one exception being in an area with numerous other players heavilly buffed characters. Gaming is pretty much limited to RPG's and driving games, not much of a shooter fqan with the exception of sniper types
To be honest, there isn't much of a performance difference between DDR2 and DDR3. 4GB should be plenty, although if you pass your AM2+ board to your girlfriend then you will need to buy new RAM regardless right? Besides, DDR2 is slowly increasing in price while DDR3 is coming down.