High temps on new cooler

Jonnibravo · 24 Nov 2023 at 15:59

I originally had a Corsair H150i elite which had idle coolant temps of around 30-33 degrees which I wasn't totally happy with, now I have fitted a H150i Link and my temps were 50-60 degrees idle, with the coolant sitting at roughly 40c I have reinstalled the bracket and re-seated the cooler and I have managed to reduce this to coolant temp 38 idle cpu temps are roughly ranging from 45c to 52c.

What could be wrong?? I have z690 maximus formula 4090 and a 13600kf

Jonnibravo · 24 Nov 2023 at 16:31

mickyflinn said:
What was your CPU temps ?

My coolant before always sat at roughly 30 degrees, my temps idle just doing limited tasks sits at 41c coolant with the cpu ranging from 45c to 55c. I played Far Cry 2 and it topped out at 69C, so why are my idle temps so high.

Jonnibravo · 24 Nov 2023 at 17:00

I was having an issue with the RGB from my 9 fans causing stuttering one of the cables had degraded, so I got the link system so I had less cabling. The link system replaces a commander XT commander pro and a RGB hub with just one link hub. All the fans are daisy chained so no cables there either, my case is much cleaner.

Anyway I have had the pc on for about 2 hours and the H150i Link coolant is now sitting at 43c surfing the net, I am not happy with this as my H150i Elite sat at 30c, my cpu is ranging from 46-60c now

Jonnibravo · 24 Nov 2023 at 18:10

H2S04 said:
thermal paste?

After all these years (20 years) and I fall for a rookie mistake like this, I think the pre installed thermal paste was moved too much when I was screwing on the plate, I also think I tightened the screw too much, I'll see how that goes but idle temps are about 30-40 and my coolant is sat at 29 after 20 minutes, so I'm more than happy with that, although I think it still could be better.

Do you think under-volting the CPU would help, I've heard intel overvolt the cpu out the box is that correct.

Jonnibravo · 24 Nov 2023 at 19:03

I have used some old paste I had lying around which I applied although it is better the temps are creeping back up, I am getting 40-48 with idle coolant on 37c,

Jonnibravo · 24 Nov 2023 at 19:32

Once again I have to concede that I am an IDIOT! Turns out that when my son setup the cabling he neglected to plug the radiator fans into the hub assembly on the radiator. So i was running the PC without radiator fans.

Now I am getting some of the best temps I have ever had on this build with idle coolant at just 24c and cpu temps at about 28-32c. Admins please delete this thread to save my embarrassment.