i5 7600k 80 degrees c deepcool 240mm aio

[Xchris1990x]

My liquid cooled core i5 hits 80c when stress testing it I had it running at 4.6 ghz no problems for 4 months for gaming system was used about 4 hours a week 

Yesterday I checked my temps cause I was noticing my fans were really loud and my temps were at 80c they had never gotten that high before normal had been in mid 60s when gaming now even at stock it idles at 57c and any load makes it jump up to almost 80c , I have tried changing thermal compound , and fan swap temps went up after thermal paste swap ,

My pc specs are 

Z170x gaming 7 

i5 7600k 

16 gig g skill trident rgb 3000mhz 

Gtx 1060 3gb 

Samsung evo 250 gig nvme 

1tb wd blue 

Rosewill photon 650watt psu

Deep cool captain ex 240mm aio