i have a motherboard with 2 usb 2.0 header and one 3.0 header, but my case has 3 3.0 cables.
can i plug 3.oojack into a 2.0 header(and is there anything i need to worry about)
i suggest 2600 instead of 1600x
x CPUs are mostly higher clocked(from what i see) which can be replaced by overclocking and 2600 is a newer version of 1600
and also a more powerful CPU cooler(if you will overcock)