Question High CPU temperature after changing thermal paste ?

[jahic_adnan86]

Hello! I decided to replace the thermal paste on my cpu and gpu. After I replaced everything, my cpu temperature become very high. I have Cooler Master liquid cooling. So After I replaced everything my idle temperature is about 40 C and before was 31 C. I tried 3 times with thermal paste replacement, and I fixed the cooler so it couldn't move at all. I will provide pictures below so you can see my temperatures under stress cpu. Hope that somebody had a similar problem and can help me.

My temperatures:

https://ibb.co/4PN2VP4
https://ibb.co/0FgZr0P

And here is a pics of my cooler:
https://ibb.co/fMRHqkW

IMG-20220409-102133 hosted at ImgBB

Image IMG-20220409-102133 hosted in ImgBB

ibb.co

https://ibb.co/N1K6Cqw

IMG-20220409-102216 hosted at ImgBB

Image IMG-20220409-102216 hosted in ImgBB

ibb.co

 

[CountMike]

Hello! I decided to replace the thermal paste on my cpu and gpu. After I replaced everything, my cpu temperature become very high. I have Cooler Master liquid cooling. So After I replaced everything my idle temperature is about 40 C and before was 31 C. I tried 3 times with thermal paste replacement, and I fixed the cooler so it couldn't move at all. I will provide pictures below so you can see my temperatures under stress cpu. Hope that somebody had a similar problem and can help me.

My temperatures:

https://ibb.co/4PN2VP4
https://ibb.co/0FgZr0P

And here is a pics of my cooler:
https://ibb.co/fMRHqkW

IMG-20220409-102133 hosted at ImgBB

Image IMG-20220409-102133 hosted in ImgBB

ibb.co

https://ibb.co/N1K6Cqw

IMG-20220409-102216 hosted at ImgBB

Image IMG-20220409-102216 hosted in ImgBB

ibb.co

Pump running at full speed all the time ?

 

[jahic_adnan86]

Pump running at full speed all the time ?

Not sure, as I'm not sure to know how to check, but those numbers are from running CPU stress on CPU-Z. But What I noticed is that when I run CPU stress and the temp reaches 86 C, and then I stop, the temperature drops from 86 to 50C in about 10 seconds, so I assume that thermal paste is applied well?

 

[CountMike]

Not sure, as I'm not sure to know how to check, but those numbers are from running CPU stress on CPU-Z. But What I noticed is that when I run CPU stress and the temp reaches 86 C, and then I stop, the temperature drops from 86 to 50C in about 10 seconds, so I assume that thermal paste is applied well?

Where is your pump connect to ?, Should be able to see RPM in BIOS or program like HWinfo.

 

[Phaaze88]

Use hwinfo so you avoid this confusion - that first SS, where you have a red mark next to Temperatures, only one of those is actually a cpu temperature reading - the one shown as Cpu Core(which is an average).
Those named Temperature are sensors around the motherboard.
The actual individual core temperatures and cpu package(hottest core) are like 4 sections down, and pretty tightly knit. Second SS, same deal - tightly knit core temperatures.


What's the actual problem here?
-We don't know, or can't tell, what the chassis is.
-We don't know what the gpu is.
-We can't tell what that top fan is doing.
-You didn't say what you used to test thermals.
-How old is the cooler.
-The last time the PC was cleaned.
All puzzle pieces in the bigger picture.

 

[jahic_adnan86]

Use hwinfo so you avoid this confusion - that first SS, where you have a red mark next to Temperatures, only one of those is actually a cpu temperature reading - the one shown as Cpu Core(which is an average).
Those named Temperature are sensors around the motherboard.
The actual individual core temperatures and cpu package(hottest core) are like 4 sections down, and pretty tightly knit. Second SS, same deal - tightly knit core temperatures.


What's the actual problem here?
-We don't know, or can't tell, what the chassis is.
-We don't know what the gpu is.
-We can't tell what that top fan is doing.
-You didn't say what you used to test thermals.
-How old is the cooler.
-The last time the PC was cleaned.
All puzzle pieces in the bigger picture.

Thanks for the answer, here I will try to explain the basic things. The processor is i5-9400f, and everything worked fine until I didn't replace the thermal paste. I replaced it on my GPU(gtx 1070) and GPU temp is great. However, the temp on my CPU is oscillating too much now. For example, right now as I'm using my pc and writing this and temp is 40-43 C, and if I do a stress test on my cpu it will go up to 90, and when I stop the stress test, it will drop quickly to 50 C ( in about 10 seconds.)

Specs:
Motherboard: Asus Prime b360-m
Cpu: i5- 9400f
Gpu: Gtx 1070 8gb
16gb Ram dd4
Cooling is Colling Master Liquid I don't know which model but you can see it in the pictures. Also here 2 images where I'm showing the connectors from the cooler.
This is the first, it's 4 pins on the Motherboard but 3 on the cable from the cooler.
image1

And this is the second which is just an rgb light I think.
Image2

And I must say that everything worked good before, but I wanted to replace thermal paste, since it was not replaced for about 3 years.

 

[jahic_adnan86]

Where is your pump connect to ?, Should be able to see RPM in BIOS or program like HWinfo.

I think that is connected to the motherboard with 3 pins cable, but you can see it in the pictures that I uploaded. And the biggest issue is that everything worked well before I replaced the thermal paste.

 

[Phaaze88]

Still don't know what the chassis, that houses all the components, is.
You didn't say what the test app(s) is.

 

[jahic_adnan86]

Still don't know what the chassis, that houses all the components, is.
You didn't say what the test app(s) is.

I tested temps on Open Hardware Monitor, I do the stress test on CPUID CPU-Z. And for the chassis, I'm not sure because I bought this pc as a second hand, it says on the chassis Rampage but doesn't know what model. I can take a pic if that will help.

 

[Phaaze88]

I can take a pic if that will help.

Yes, as the current pictures are too close - can't see what the front panel looks like - and we can't tell what the top fan is doing.

 

[jahic_adnan86]

Yes, as the current pictures are too close - can't see what the front panel looks like - and we can't tell what the top fan is doing.

Ok so I found that this is a Rampage Spectra case, I will leave a link below so you can see what case is, hope that's not against forum rules to leave a link.
https://www.rampage.com.tr/en/produ...ed-fan-and-1-usb-3-0-2-usb-2-0-gaming-pc-case

 

[jahic_adnan86]

OK guys I found the problem and solution. At the back is a bracket to which the cooler is attached from the front. But it didn't stand properly, because they have two remains of a seraph on the upper side and they don't have one on the lower side, so they don't lean against the motherboard 100% correctly. So I just added a piece of pressed cardboard to the bottom to see if that was a problem and now the CPU temperature does not exceed 46 C at 100% CPU load. I will attach a pic so you can understand better.
Image

 

[Phaaze88]

The link is fine, but wow, that is a solution...