Will the 750 PSU be able to run thus champ? Do I need extra cooling system or will the original fans and shiat be able to cool this mutha down?
The 750 should be fine for running with a single GPU and even SLI. The stock Intel fan should cool the i7 just fine at stock clocking (it'll just probably be loud), but if you want to overclock or get it quieter, you can always go aftermarket later on.
Connect With Us