CPU 70 degrees Celcius at Idle with water cooling

[Singingwalrus]

I've been having CPU cooling issues for a while now, CPU is running 60-70 degrees Celcius whilst idle. Under load these temps can reach up to 80-90. This is a huge issue and I'm searching desperately for a solution. I redid the thermal paste one week ago and have seen little to no improvement. Since I am using an AIO I cannot change the fluid either. The fans run at max speed always, and are extremely loud. Is my CPU faulty, my cooling, or my Motherboard maybe? Please help.

My Specs are:
CPU: AMD FX-9590
CPU COOLING: Corsair h100i AIO
MOTHERBOARD: ASRock Fatality 970 Performance Series

 

[KR2]

This is possibly a faulty cooler which doesn't deliver the temperatures it should do, if anything I would look at possibly replacing the cooler as that is the only thing that will be influencing the temperatures of the CPU. If you still have warranty then I would RMA it and get a replacement.

 

[mcnumpty23]

either the pump isnt working or you didnt mount the water block flat

 

[Dunlop0078]

Like said above its either the pump in the cooler has failed or its not mounted properly. Nothing else is going to cause 70c idle temps. You can certainly damage that cpu at those temps, its not an intel cpu it cannot happily go to 100c in fact amd recommends it not exceed 62c under full load, you are exceeding that at idle. I would not run that pc for any extended period of time until you fix this, or risk damaging the cpu and/or motherboard.

Also that motherboard is woefully inadaqute for that power sucking motherboard killer 9590, but I doubt thats causing your 70c idle temps.

 

[Singingwalrus]

The liquid entering the CPU block is cold to the touch, but when it leaves the block it is nearly singing hot, so I don't believe it is due to a faulty cooler.