"The new OCZ ZX Series comes to replace the Z Series from the same manufacturer. Three models are being offered so far: 850 W, 1,000 W and 1,250 W, all with a full modular cabling system, 80 Plus Gold certification, single +12 V rail, and synchronous design with DC-DC conversion. 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