Hi, first off which water cooling system did you install? An all in one like the Corsair series or a custom loop. Your temps do seem a tad bit on the high side to be on water. How big is the radiator? Can it be mounted somewhere that provides better air flow? Are you using a fan controller or a program like afterburner or Evga precision? And what case are you using? It would be really helpful if you posted more of you system specs. You might try cleaning your old thermal paste off and re-applying it but if you say one of your fans is partially blocked that might just be your problem.