Question Ryzen 7 9800x3d very high temps in idle

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marektmv

Jan 17, 2025
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Hello, today i got prebuilt pc and as soon as i started i noticed very high idle temps. Right now i have 66°C temps.
cpu cooler is noctua nh-d15 chromax.black
mobo ASROCK B650E Taichi Lite
case fractal Design Torrent Black RGB TG Light Tint

temp.png
 
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Please tell us a little about ventilation in the case; how many fans on input and how many on exhaust. Also what speed or percentage are these fans operating at. You could try this simple test: if you remove the side covers (and top cover if removable) do the temps drop significantly? That would indicate a ventilation problem.
 
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dwd999 said:
Please tell us a little about ventilation in the case; how many fans on input and how many on exhaust. Also what speed or percentage are these fans operating at. You could try this simple test: if you remove the side covers (and top cover if removable) do the temps drop significantly? That would indicate a ventilation problem.
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case is fractal Design Torrent Black RGB TG Light Tint .
cpu fan 800rpm, case fans 770
i tried each side, both, no change.

vents.jpg
 
The Noctua NH-D15 (@ op; DH15 doesn't exists) is rated for 250W, more than capable to cool the 9800X3D. That being said I would look into what rgd1101 posted, looks like a bad cooler install cause it should be around 45-50 idle with your setup.
 
ötzi said:
The Noctua NH-D15 (@ op; DH15 doesn't exists) is rated for 250W, more than capable to cool the 9800X3D. That being said I would look into what rgd1101 posted, looks like a bad cooler install cause it should be around 45-50 idle with your setup.
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Yes edited now, ty. What should i do? Just remove it and check thermal paste or what can be fault?
 
marektmv said:
case is fractal Design Torrent Black RGB TG Light Tint .
cpu fan 800rpm, case fans 770
i tried each side, both, no change.
Click to expand...
What is the AUXFANIN1 entry, is that all 5 case cooling fans? Normally these would be set to increase in speed as the CPU fans increase in speed but I don't see that in the chart you posted. You may need to set a new fan curve in your bios; refer to the bios manual FAN-Tastic section if necessary. As another test before taking the cooler apart or returning the system you could manually set all of your fans to run at 100 percent maximum and see what temp readings that produces. If temps don't come down at 100 percent then a cooler mounting problem is more likely.
 
dwd999 said:
What is the AUXFANIN1 entry, is that all 5 case cooling fans? Normally these would be set to increase in speed as the CPU fans increase in speed but I don't see that in the chart you posted. You may need to set a new fan curve in your bios; refer to the bios manual FAN-Tastic section if necessary. As another test before taking the cooler apart or returning the system you could manually set all of your fans to run at 100 percent maximum and see what temp readings that produces. If temps don't come down at 100 percent then a cooler mounting problem is more likely.
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Yes auxfanin1 are all other fans. I tried running fans on max and no change.
 
Contact the company who put it together and ask them if that's what it should be. Likely needs to be remounted if it's idling in the 60's. Although if it's not breaching 90 under a stress test it could be ok.

You can try it with the side of the case open to see if that effects anything. Also confirm PBO is off.
 
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just a though ,but when you first installed it. was there thermal paste on the cooler. or did you apply thermal paste yourself? also did you take the "plastic sticker" of the cooler. (ive seen many people overlook that. and have high temps).
also its worth noting that some thermal pastes take time to settle.. so you will see hight temps on 1st boot. and for a while until it settles.
 
steveb1976 said:
just a though ,but when you first installed it. was there thermal paste on the cooler. or did you apply thermal paste yourself? also did you take the "plastic sticker" of the cooler. (ive seen many people overlook that. and have high temps).
also its worth noting that some thermal pastes take time to settle.. so you will see hight temps on 1st boot. and for a while until it settles.
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This is how it looks.
https://imgur.com/a/fUUCHzt
 
marektmv said:
This is how it looks.
https://imgur.com/a/fUUCHzt
Click to expand...
did it look like that when you took the cooler off? or did you wipe paste away? as that looks like you did not have enough paste coverage .. and that the cooler was not making proper contact..

what paste do you have.( from the pic i'd guess at Artic MX4) you could try the the spreading method.. where you apply past to the cpu. and use something to "spread it evenly across the whole of the cpu ihs (the top of the cpu.). check the cooler part that sits on the cpu.. and make sure to wipe away any paste on it.. and make sure there is no plastic film on it.. .
then when you put the cooler to the cpu , make sure it makes good connection... when you turn on pc give it a few minutes to let the paste warm up and settle . and hopefully the temps will be low. somewhere in the low 40'c with that cooler.


also check the orientation of the fans on the cooler. they should be on saw direction. to pull air through them and the cooler.
 
steveb1976 said:
did it look like that when you took the cooler off? or did you wipe paste away? as that looks like you did not have enough paste coverage .. and that the cooler was not making proper contact..

what paste do you have.( from the pic i'd guess at Artic MX4) you could try the the spreading method.. where you apply past to the cpu. and use something to "spread it evenly across the whole of the cpu ihs (the top of the cpu.). check the cooler part that sits on the cpu.. and make sure to wipe away any paste on it.. and make sure there is no plastic film on it.. .
then when you put the cooler to the cpu , make sure it makes good connection... when you turn on pc give it a few minutes to let the paste warm up and settle . and hopefully the temps will be low. somewhere in the low 40'c with that cooler.


also check the orientation of the fans on the cooler. they should be on saw direction. to pull air through them and the cooler.
Click to expand...
Yeah i just took The cooler off. I have some Thermal paste from noctua, can i use that?
 
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