Indeed, there are a lot of systems running with a tremendous amount of excess PSU capacity out there. The Radeon 5770, for example, is rated at 108 watts maximum power, and the 2500K is rated for 95 watts. Even overclocked, with two 5770's, you're going to be no more than 450 watts for those three components--and that's an unrealistic worst case scenario. HD's are about 10-12 watts each, and I'd be very surprised if everything else in a typical system is more than 50-75 watts.
I run an i7 930 at 4GHz, 5770, 23 hard drives, water pump, and 9 fans on a lowly S12-600 I purchased nearly 6 years ago. All that said, for a dual GPU system, I'd probably be looking for a 750 or 850 watt unit myself. I buy very good power supplies, so I expect them to live through several platform upgrades with ever increasing power demands. > -----Original Message----- > From: [email protected] [mailto:hardware- > [email protected]] On Behalf Of Stan Zaske > Sent: Saturday, January 15, 2011 5:50 PM > To: [email protected] > Subject: Re: [H] Motherboards. > > Well my Main Machine is running on a Seasonic 430 watt PSU without issue > and I have my X6 overclocked to 4 GHz and my GTX 460 running at 850 MHz > Folding@Home 24/7. My Kill A Watt shows that my box is pulling 280 watts so > does that put manufacturers marketing into perspective? Bigger is better > isn't always true. > > > On Sat, 15 Jan 2011 17:36:14 -0600, Joshua MacCraw <[email protected]> > wrote: > > > Is 650w ever enough esp. with 2 cards? Not in my book, YMMV. > > On Jan 12, 2011 2:35 PM, "Anthony Q. Martin" <[email protected]> > wrote: > >> Is this a suitable PS for a i5-2500k system running one (or maybe > >> two) ATI HD 5770? > >> > >> http://www.newegg.com/Product/Product.aspx?Item=N82E16817151088 > >>
