High CPU temps with custom water cooling loop

[evantitus188]

Hi there, so I have this issue lately where my CPU temperature has been slowly rising over the last few weeks. I have a custom loop (GPU and CPU) I find it strange and a bit concerning. When my build was conpleted I used to get between 45 and 60 degrees celsius and just today I saw it reached 78. Im not overclocking everything is as it was when I first installed it.

Your input would be greatly appreciated. Thanx

My specs (if it would help)
i7 4790k
Gigabyte G1 GTX1080
Asus Maximus VII Impact
16GB DDR3 2400 Mhz

 

[winks42]

check the rpm of the pump. and the flow. how many radiators do you have and what liquid. also is 78 load or idle temp? check for visable corrosion/buildup on the block to.

 

[evantitus188]

I should have mentioned that this is at load (gaming) while not high to be a serious issue its just that its higher than it was before. I have two slim EK radiators, 120 & 240 I drained the loop two days ago and didnt see anything out of the ordinary. The pump at idle is 2800+ rpm (checked in bios). Im using red EK cryofuel. Ive also changed the thermal paste. I've downloaded intels processor diagnostic tool just to check the CPU, but all turned up ok.