Faint lines on cpu chip Tags: CPUs Chip Last response: November 25, 2012 8:37 AM in CPUs Share remmys November 25, 2012 8:20:22 AM Hello, is it normal to have faint outlines of a square shape on the back of the cpu? i3570k (costa rica) Sealed boxed set with dirty booklet inside. More about : faint lines cpu chip Nedal0 a b à CPUs November 25, 2012 8:37:20 AM Hmmmmmmm ! that's a bit strange. Is it really a sealed box ? Don't tell me you purchased it off eBay The square shape tells you it has been used. Its as simple as that. Heat cycles through thermal paste between integrated CPU cooler and Heat Sink creates that square. Definitely a used CPU. Can't find your answer ? Ask ! Publish Related resources: ForumMy chip was unlocked- but it won't post to 133!! ForumTotal screen lines issue almost looks like a vid test ForumSamsung 2032BW - vertical lines at left and right edges ForumAMD Processor PRices!!!!! * FAINT * ForumSAMSUNG DLP PROBLEM VERTICAL LINES HLP4663W ForumWhich CPU ? RESULTS!!! ForumExploring Below Ambient Water Cooling ForumTHG CPU Cooler RoundUp - Just Say No ForumHow to unlock a duron/tbird chip ForumCPU hot Q6600 Help!!! Forum* Overclocking problems with i5 3570K in GA-Z77X-D3H * ForumAbout to have a nervous breakdown about this ForumStrange lines during video playback and games ForumUpgrade Issues, Did I fry it? ForumFirst Gaming Build. ForumCPU thermal paste? ForumVertical Lines of Death ForumI5 2500k idle temps high? ForumOpinions and price of this PSU........... ForumWheres the bios chip? More resources Read discussions in other CPUs categories AMD Intel Intel i5 Intel i7 Phenom Cooling Performance !