Not very easy to implement PCI-E 3.0 at this stage. Even Intel is having trouble with PCI-E 3.0 on their LGA2011 and there are rumors that the early version of LGA2011 boards will come with PCI-E 2.0 instead because implementing PCI-E 3.0 will delay them further till next year.

maybe can stand for 2yrs,seems its 8core. nowadays also we can't even use all 6core for gaming,juz quad core only. more than quadcore used for graphics designing like rendering.

am i rite? if wrong pls correct me,i'm a noob. tq

8 core is good for folding, especially with -bigadv.

more than quad core, can use for folding@home as well.

Those boards are still a prototype when it debuted during the live event so it could just be a physical mock up of the board but not a working prototype. For a Z68 board to have PCI-E 3.0 makes not much sense since there are only 16 lanes coming from the CPU and split in configuration of x16 and x8x8.

Actually I think Intel does not have much of problem implementing it is just that if they are not 100% sure that it will definitely work then there is no point releasing it since it could be hardware dependent and firmware updates will not fix the problem in the future. It is all rumor and speculation at this moment and nobody is 100% sure what is going on behind closed doors.

I am guessing that Intel is playing it safe since the Cougar Point chipset bug and they wouldn't mind delaying a few months to make sure that their products work. Quad channel memory I think exists on server boards for quite some time already and it is now moving downwards to the consumer level products.