Laptop Heat up

Apr 7, 2018
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Am using a lenovo ideapad z500
Core i7- 362
Cpu 2.2 ghz
8 gb ram
64 bit Windows 10
4 yr old laptop
When just browsing my core temp are at 80 degree.am gamer bt haven't played in a while .I see other post say normal is 40 ish temp and 50 is browsing type what may be wrong that you may point out I try go fix