Hello,
I've been saving up for a new pc for quite a while now and my goal was to gather like 1400-1500€ by december, but I was unfortunately forced to move the date up since my graphics card went bust on my old pc.
Now I've been thinking about solutions how to compensate for the lack of power I'm facing now that my budget is cut short (to about 1100-1200€). I came to a solution to buy a computer with intel i7 2600k,1 x GeForce GT 570, 1TB Caviar Black, SATA 3, 7200rpm, 64MB , 8GB RAM and some asus motherboard that supports 2 graphics cards and some cheap 70 € case.
Anyway my solution is to buy a bigger power source (I was thinking aobut 750 W instead of the recommended 650 W) and buying an addittional graphics card later on (another gtx 570). But the thing is that I don't really know how efficient Nvidia crossfire is and how good power source it would take to run that setup + 2 graphics cards. So the question is that is the 750 W good enough when I later on buy my second 570 GTX? And also how good is 2x GeForce 570 GTX on crossfire? How do they together compare to for example gtx 580 or gtx 590? And what other problems might occur with that?
Secondly, I was thinking I could save some money by using my old Windows for the new PC. I have a lisence that I got when I bought my first computer for vista 32bit and I later on bought a lisence for Windows 7 64BIT. I've already installed them on my broken tin can. Is it possible for me to use those OSs on my new pc and how should I proceed to get them to work on it?
Thank you in advance.