System specs : 800D (various fans) H100 cooler p8p57 evo mobo i5 2500k msi gtx 570 twin frozr crucial m4 128gb samsung f3 8gb vengeance 1600. corsair hx520w. My current PSU the HX520w has served me well, but it will have to go if i want to add a second 570 for SLI, dont want to spend too much but want something thats good and will last, any ideas ?
i am using the tx850 on mine and that copes really well. here just found this, hope this helps with your choice http://www.guru3d.com/article/geforce-gtx-570-sli-review/13
Toughpower 775 - best PSU I have ever owned by a mile, and easily enough punch for 570 SLI. It's also very good value for money for such a powerful modular PSU, only £80 on ebuyer It is made by CWT who also make many of Corsair's power supplies.
Treat PSU recommendations with a pinch of salt - I ran 470 SLI on my system with tons of headroom, and 570 SLI will draw less power than 470 SLI. With one 470 my system never reached 400W drawn at the wall; when gaming it peaked at about 375W. Adding a second graphics card would bump that up to about 520W. It's all about headroom - think how many games will push both graphics cards to 100%... very few, if any at all, and even at 100% your graphics cards aren't drawing all that much power, unlike with fur mark!
