Replacing prebuilt CPU?

GL9106

Commendable
Jun 30, 2016
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Case: ASUS G11CD
Gpu: GTX 970 4GB
Cpu: i5 6400 2.7 GHz
Mobo: H110-1(exclusively made for prebuilt)
Psu: Delta 500watts.
My mobo has the LGA1151 socket and I just want to upgrade the cpu so any suggestions?
 

if you go with i5 even kabylake one's you're not gonna see much diffrence and it's tricky to go with i7 with mobo and psu output wattage of yours.
it's better you use it for a while and get higher budget to buy a new rig in far future ( i would do that) :pt1cable:

 
MERGED QUESTION
Question from GL9106 : "Upgrading a CPU."



















Then do you know what it supports?