CPU running 100 celcius

[chk12]

Hello,
I built my PC a couple years ago and it ran perfectly, but after I came back from college for Thanksgiving break the CPU started to run really hot(screenshots below). I tried to reapplying thermal paste and reseating the cpu cooler, but nothing seems to work. Any help is appreciated. Thanks!

Components:
CPU: Intel Core i5-4670k
CPU cooler: Corsair H100i 77.0 CFM Liquid CPU Cooler
Motherboard: MSI Z87-G45
GPU: MSI GeForce GTX 770
Power Supply: Rosewill Hive 750W

CPU temps:
http://imgur.com/a/IsMY2

 

[Hamperking68]

That is very hot.

Feel the cooler does the CPU end feel warmer than the radiator? It may be time to replace the cooler as something may have caused the pump to fail.

 

[xFeaRDom]

Agreeing with the above.

Do you feel the pump vibrating, and feel the pipes going on top of the CPU, is one warmer than the other/cooler than the other? If not, then the pump may have failed.

If you feel like it is working, you could try to replace the thermal paste, but I think me and @Hamperking68 will agree that the pump most likely has failed.