Cpu pump fail

So everything was running good, but now it seems that my CPU Liquid Cooler is Failing. I am getting some crazy high temps at idle..Right now just as I type this I am at 78 Degrees Celcius. CPU Stress test using Intel Extreme Tuning Utility gives me 91 Degrees Celcius, and it throttles to about 45%. Any suggestions? I need to order the Screws for my CPU Custom Loop, and then I can install that. I have taken the AIO Cooler off, cleaned it, and put new thermal paste on it, and that did nothing for my temps. I have tried it all.

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I ordered the Corsair H80i. I don't feel like messing with my custom loop. :)