Hi folks, I hope you are well and can help provide your 2p worth on my 'situation' (well and truly in the realm of '1st world problems ) I've recently built myself a Core i7-8700k system on an MSI Z379 Gaming M5 motherboard with 16GB of Corsair Vengeance RAM at 3000mhz 14-14-14-34 2T. The system is placed inside of a Coolermaster HAF-X case and uses a Fractal Design Celsius S36 360mm AIO cooler. Firstly I spent a while getting the RAM all mem-tested and 100% stable which I am now happy with after using memtest to get full coverage of the RAM overnight. With that out of the way, I decided to use the hot weather in the UK to do a bit of 'worst case scenario' overclocking (hey what else would you do? ^_^) with my new i7-8700k. I'm determined to hit 5ghz this time around (I have my heart set on it! after the success) and make a half decent gap from the system I have just come from was my faithful Core i7-4790k which I've been running stable at 4.5Ghz for several years. Cutting to the chase, it seems that I might have received a bit of a lemon (not the absolute worst but not great either): 4.8Ghz requires 1.3v. Temps in Prime95 = 79-81oC 4.9Ghz requires 1.35v. Temps in Prime95 = 88-91oC 5Ghz requires 1.4v to boot. BSOD quickly in Prime95. Not dared to go any further due to heat and approving TJMAX limit. So my question is, is it worth me looking at the prospect of delidding the CPU to improve temperatures or am I better off looking to get another 8700k and re-roll the dice on the silicon lottery before looking at de-lidding? Many thanks for your assistance / views in advance!