"Seasonic offers four models under their G series: 360 W, 450 W, 550 W, and 650 W, all featuring the 80 Plus Gold certification. We've already reviewed the 360 W model, which proved to be a winner. Let's see if the 550 W version follows in the same footsteps."
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips