My 5+ year old sandybridge i5-2500k rig was getting pretty flaky.. Sometimes took 2-3x to post successfully. Recently it started locking up on windows lockscreen randomly. I knew at the least it needed a format C: party and fresh windows.. since it had other issues I decided to "upgrade". I reused many parts such as: Corsair 650D case corsair ax650 Corsair AX650 Power supply Dvd Drive, HDDs 1TB, 2x2TB(to be replaced soon) INTEL 730 series 240GB-Former boot drive now Gaming drive. Corsair H100 Cpu Cooler Enermax Magma Case Fans. EVGA Geforce 970 SC+ edition @1400mhz New Parts + what it replaced Microcenter FTW. Old>>>NEW Processor Intel I5 [email protected] >>> Intel [email protected] Motherboard asus p8z68-V LX >>> Asus Maximus VIII Hero Boot drive Intel 730 240GB>>> Samsung 950pro 256GB NVME m.2 Ram 16GB Crucial ddr3 1600 >>> 16GB Crucial Ballistix ddr4 2400 So far so good. I was going to hold off another year or so but the flaking motherboard it was a good time. Boot drive speed comparison. OLD VS NEW Was pretty painless except for doing it after working for 12hours + 2 hours of driving for parts. Needed an eyeglass screw sized phillips for the M.2 drive. Had some gelid extreme compound already so that was fine. Was missing 3 standoffs for the motherboard screws (new board has 9 old had 6) I tore down a junker computer and snagged 3 after 30min wasted looking for the box of case extras I had 5 years ago. The auto overclock features are terrible until you disable all the overclocking unfriendly settings. I just manually set it up in about 2min.. I'll tweak it after a week or so. Temps are under 60C maxxed out in prime 95 X8 threads.