Ive been doing some more reasearch about an I7 920 build id like to do and have some more questions.
1. I was reading an article on The $2500 system build on here and it mentioned that the retail version of the I7 920 has the memory ratio unlocked where you can select DDR3 anywhere from 800 - 2133. Is that correct?
2. Having settled on the i7 920 cpu. and going to run Vista 64, what would be the ideal amount of ram? 6gb, 8gb or 12gb?
3. Does the tri-channel DDR3 have to be run in pairs of 3 chips? or could I run say a 6gb kit and add one more chip for a total of 8gb?
No, you can run 2GB x 3 + 2GB just fine, it will be triple channel and will use the last 2GB last, just check the motherboard memory specs when you're putting it together. Six GB is quite a bit though, I have 12GB total and the only time I've used 6+ was while having supcom and crysis minimized/running OR when I had this weird memory leak that got me up to almost 10GB usage once.