Well, after leaving my PC on downloading last night whilst asleep, I wake up this morning to the fans going full pelt. A quick look at the mobo's CPU temp readout and it's pegged at 99C. Quickly pull the plug out, allow to cool down. After 30 mins, I stick a pencil on the Kraken X62 pump and put it to my ear and power it on again. Kraken pump RGBs on but nothing pumping, not even a hum. SATA power is fine, tested with spare HDD. This is the 2nd AIO out of 4 I've owned that's gone tits up. 1x Corsair H115i and now the Kraken... leaving me seriously doubting Asetek's reliability. At least both failed within their warranty period; however, 50% failure rate for me as an individual. Luckily, I've got a D15-S laying around, which has gone straight on. No damage to CPU or motherboard. The CAM software detected a malfunction with the Kraken at around 2am, so it was essentially boiling itself until 0900hrs this morning. Thank god EVGA make rock solid motherboards. I'm now totally done with AIOs. Never, ever again.