"Zalman has just released a new power supply line, the HP Plus, featuring two internal heatpipes and modular cabling system. Currently only two models are available, 850 W and 1,000 W, both with 80 Plus Silver certification. Although they are not selling them yet, Zalman has already got 80 Plus Bronze certification for the 500 W, 600 W, and 700 W models, so they will be releasing these models in the near future. Let's see if the 850 W model is a good buy."
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