Question CPU 90C on idle?

[LackuJacku]

I don't know if this is incorrect.
Just installed a new water cooler and the air coming out is cool, but the CPU is reading 90C!
What's going on?

 

[Shektron]

Did you remove the plastic cover on the CPU cooler? Switch off your PC immediately and check if the cooler is installed properly and re-apply a grain of rice-sized thermal paste on the CPU, nothing more, nothing less. What are your PC parts?

 

[LackuJacku]

Did you remove the plastic cover on the CPU cooler? Switch off your PC immediately and check if the cooler is installed properly and re-apply a grain of rice-sized thermal paste on the CPU, nothing more, nothing less. What are your PC parts?

I am using the corsair 115i pro cooler. It does come with thermal paste, but when I replaced the cooler I didn't remove the thermal paste left from the old cooler. Maybe that could be why?

 

[Shektron]

I am using the corsair 115i pro cooler. It does come with thermal paste, but when I replaced the cooler I didn't remove the thermal paste left from the old cooler. Maybe that could be why?

Yeah, you need to remove the both the older paste and the one that came pre-applied now, because once a cooler is separated from the CPU, all the applied paste must be removed and new one must be applied. Buy a tube of paste if you don't have one, remove the cooler, clean the paste with isopropyl alcohol and then apply new paste, then install the cooler again.

 

[SpectroG]

Hey, If you're using Corsair LINK - Uninstall it immediately, reboot, and install Corsair iCue instead. Corsair LINK is known to report false temp readings, you can also download HW monitor to confirm this. - do not go dismantling your pc for no reason. I had the same issue a week ago. It's the software, not your PC

Once in the iCUE software, go to performance, and set the 2 fans, and pump to Extreme. You may hear the audible sound of every thing spooling up. this is good

Also, with the corsair AIO's you won't see super low temps for a couple days, unless you do a thorough burn in. once mine burned in, I idle at 26C with my Corsair H100i PRO

 

[LackuJacku]

Yeah, you need to remove the both the older paste and the one that came pre-applied now, because once a cooler is separated from the CPU, all the applied paste must be removed and new one must be applied. Buy a tube of paste if you don't have one, remove the cooler, clean the paste with isopropyl alcohol and then apply new paste, then install the cooler again.

Alright so I need thermal paste and alcohol to remove the old paste. Both things I don't have atm.

Will it be dangerous to run the computer without these things applied rn?

 

[LackuJacku]

Hey, If you're using Corsair LINK - Uninstall it immediately, reboot, and install Corsair iCue instead. Corsair LINK is known to report false temp readings, you can also download HW monitor to confirm this. - do not go dismantling your pc for no reason. I had the same issue a week ago. It's the software, not your PC

Once in the iCUE software, go to performance, and set the 2 fans, and pump to Extreme. You may hear the audible sound of every thing spooling up. this is good

I am using Icue

 

[SpectroG]

Nah, using 2 thermal pastes isn't bad, they just run at diff temps. The best bet, is a paper towel with a little bit of rubbing alchohol on it, and a credit card to scrape it off. Reapply, hook everything back up - and also make sure the pump is correctly seated on top of the CPU - so when screwing the pump back on, Push the pump down into the board with the other hand while tightening.

And - Yeah, never run a PC without a cooler on the CPU, it will fry in about a minute.

 

[Shektron]

Nah, using 2 thermal pastes isn't bad, they just run at diff temps. The best bet, is a paper towel with a little bit of rubbing alchohol on it, and a credit card to scrape it off. Reapply, hook everything back up - and also make sure the pump is correctly seated on top of the CPU - so when screwing the pump back on, Push the pump down into the board with the other hand while tightening.

And - Yeah, never run a PC without a cooler on the CPU, it will fry in about a minute.

It is bad if one of them was already used for some time, older paste is supposed to be removed for a reason. You can run your PC with the cooler installed currently, but 90C on idle really is ridiculous and I wouldn't recommend using it for too long at once, and don't use it at all if possible.