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In past two days I have tried to overclock my laptop MSI GT75VR TITAN PRO and succeed 90 percent only.I started Overclocking in xtu and it worked well and CPU temp were 60c to 70c occasionally it spiked 75c but it's stable and with stand every test I throwed at it "Cinebench, prime 95 , xtu stress, even Aida 64 stress test"And I played CPU intensive games like Gta 5 around 3 hr and also some of Cpu intensive application from my work it still withstand perfectly and temp was too good only around 68 C (Fan speed :Auto).Until it tested with "Aida 64->Benchmark->CPU Hash" and suddenly got crashed. And then it automatically rebooted and tested again with same setting and it crashed again. I thought something not compatible with my system and it took another day to find the solution for my problem and I found two solutions1) Increase the core voltage offset -100mv to -60mv 2) Another leave the core voltage -100mv and increase the ring ration default 3.6 Ghz to 3.9 GHz And I tested with those setting it withstand most of the time,but it still crashed 1 or 2 out of 30 times.What do i do and why my overclock doesn't handle CPU Hash benchmark testing Guys i searched every forum to find solution for this problem nobody can identify the problem.So, I came here you guys are all developed this S/W and let me know what did i miss !!! System Crash Video for your reference https://www.youtube.com/watch?v=zkXP_RBpe8A