My 670's are good to be honest though i don't know if they fixed it or not i called tech one day and they told me there was nothing to fix that if my cards died within warranty they send me new ones free of charge then emailed me this link lol. Originally Posted by MSI
MSI Releases the statement for the test of GTX 660 Ti and GTX 670 from Tom's Hardware
MSI respects the result which is tested by Tom's Hardware, but we have much confidence and believe our products would not cause any customer RMA concerns.
Since MSI designs these custom products with overclocking in mind, we "supercharge" these cards because we're anticipating enthusiast to overclock. Because of this design decision and the higher component quality, we're able to provide more power to the board resulting in higher and longer GPU Boost operation without reducing the lifetime of the graphics card or warranty term.
MSI's all graphics cards including GTX 670 and GTX 660 Ti passed strict test and stand behind our products with a 3 year warranty.
Source >> http://www.msi.com/news-media/news/1482.html