It's under warranty so not your problem. Get back to the seller and start the warranty process.
I've recently purchased a new computer with the hardware listed above. When I first got it, I installed Windows 7. After a couple hours of using it it froze and I was a little concerned. It did so again after a few more hours, and again after another five. It started happening every hour or even more frequently, and at one point I believe my computer even shut off (I went out to get food and it was off when I got back). It froze in the middle of logging in
I tried unloosening my CMOS chip, which a friend suggested, but no dice.
I installed Windows XP in hopes that it would be a temporary solution, but it froze there too. Then, when messing in my bios, it froze during boot select. I guess that means it freezes pretty much everywhere. Any ideas?