I was looking at this new asus mo/bo, and it only says it supports ddr2 up to 711mhz. Iv'e heard bad reports on ddr2, and to stay with ddr1. What should I do, what would you do? What are the disadvantages of ddr2? Any help would be appreaciated.
You need ddr2 for the new Intel chipsets. You can get a newer Intel chip and an older chipset and run DDR1.
Like I said, DDR2 latencies are higher, but it is also higher frequency, which makes up for it. For example mine runs at 3-3-3-9, which is higher than the comperable DDR1, but I wouldn't say "way higher."
~edit~ Oh, and the Asus thing. I don't know, I like Asus for Intel boards, but being the "best," I don't know, that is a matter of opinion. I got mine because it got great reviews and had a ton of features. I really like the Abit boards for Intel as well.
The reason why DDR2 gets trashed so much (and why I don't like it) is that slower DDR1 can match and surpass DDR2 bandwidth on AMD systems equipped with the hypertransport bus. Basically you're getting more bandwidth for cheaper plus you have lower latency and more overclockability to boot.
Idiotec is right, Intel originally laughed at the idea of an intergrated memory controller due to difficulty in switching memory interefaces and such, however ironically they've now decided to make their own LDT bus similar to AMD.
However, AMD won't be using DDR2 until switching to socket M2(940 pins), Socket S1 (657[?]) and the new server socket (I can't remember it right now (1000+ pins) so really the memory controller doens't pose much of a problem.