Bought and installed the Nepton 240M in February. It worked great and I loved it till the last 7 days. At first on occasion when I started up the computer I would notice my core temp monitor increasing from it's normal temp of 32-37 degrees C till it went up to 70-80's and I'd then turn the PC off. This only happened every once in a while and I wasn't even running anything just looking at windows desktop. Now it's starting to happen almost every time I boot up the PC. Sometimes shutting down and restarting 5 or 6 times in a row will cause it to start cooling again. Any ideas?