Question CPU temperatures high after installing new GPU

[Juust]

so recently i upgraded my GPU and after doing so my i notcied that my CPU fan would be rather loud for about 1 second and then back to normal speed/noise level this would happen every 15-20minutes or so and after downloading a CPU temp monitor it seems that my CPU temp is up in the 90 degree + range while gaming and even up to 60 or so when idle, i didnt have this previous issue with old GPU can that of caused it somehow i've taken off the CPU fan and cleaned it out etc, updated bios but it didn't change anything, im wondering if i need a new layer of thermal paste or maybe something else?
Would a new fan sort this problem out?


Old gpu: GTX 770

new gpu: MSI 1660 armor ti

cpu: i5-4570

yes i realise the cpu is rather old and bottle neck etc plan to upgrade eventually too

 

[tennis2]

Seems like an odd coincidence for sure.

Cleaning off the old thermal paste and applying new is what I'd recommend.
What CPU cooler do you have?

 

[Juust]

Seems like an odd coincidence for sure.

Cleaning off the old thermal paste and applying new is what I'd recommend.
What CPU cooler do you have?

Just the stock intel one, was looking at maybe purchasing a 212 EVO fan but not sure if it would actually make a difference or not rather than just replacing the current one with a new one

 

[Karadjgne]

Repaste the cpu cooler for sure. It takes very little to break the seal on the thermal paste, especially when it's old, and on a 4th gen cpu, many pastes back then were somewhat lacking. Once the seal is broken, it won't reseal, and you'll not get the same, or even close, thermal transfer ability anymore, so cpu temps will jump up considerably. Removal of the fan, even a good clean with it in place, a slight rock to one side, even laying the pc on its side can be enough to break the seal. As can any bump to the cooler, especially tower type - top heavy coolers, when swapping out a gpu.

 

[Juust]

Repaste the cpu cooler for sure. It takes very little to break the seal on the thermal paste, especially when it's old, and on a 4th gen cpu, many pastes back then were somewhat lacking. Once the seal is broken, it won't reseal, and you'll not get the same, or even close, thermal transfer ability anymore, so cpu temps will jump up considerably. Removal of the fan, even a good clean with it in place, a slight rock to one side, even laying the pc on its side can be enough to break the seal. As can any bump to the cooler, especially tower type - top heavy coolers, when swapping out a gpu.

alright i'll give it a try thankyou

 

[tennis2]

If you actually removed the fan from the stock Intel heatsink, you would've had to remove the entire heatsink from the motherboard (the fan frame is molded with the mounting pegs). As Karad said, anytime you break the seal between a heatsink and the chip it's cooling, it's best practice to remove the old thermal paste (rubbing alcohol on a paper towel) and re-apply TIM.

Also, make sure you get all 4 push pins seated properly. It's easy on these to not the the pins in and locked.