I have just bought a new 6800K and although I don't think it's been used, it does have a small 1cm long faint scuff mark just above the middle centre and quite a few other marks on the surface, including 4 odd straight 1-2mm vertical lines... pic below, not deep scratches or anything, but I'm sure I've never seen a CPU like this before. It was OEM, but is this normal and will it potentially affect performance? Should I return for replacement?

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