Hi, I've just bought an i5 4670k with Asus z87m-Plus MB and hyper 212 evo cooler. I put it together and ran Prime95 last night to check thermals, for the first 15 mins it was maxing out at 75 degrees, but then after 18 mins it rocketed up to 96 degrees on all cores. I monitored it using RealTemp and stopped the test as soon as I say it at that level. When I seated the CPU cooler I put a pea sized dot in the middle of the CPU and just put the cooler on top. Does anyone know why it would go so hot after 18 mins when it has been fine for 15 mins and any solution I should try? I tried running prime95 twice and it did this both times. I'm using a silverstone SG10B case Thanks in advance!