I would go with the AMD Phenom II X4 and a Cooler Master V8 heatsink. Everything else looks great!
It could be your network card or the drivers. Try reinstalling the network card drivers or updating them.
I have built quite a few computers in my 12 years of IT experience. You don't really have to worry about compatibility as long as you get the...
The i7 core CPU is expensive. You need to either increase your budget or down grade the processor. Try the AMD Phenom II X4.
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