[SOLVED] BIOS show CPU is 126 C and Motherboard is 0 C

Aug 29, 2019
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Hello everyone! :)

I just build my very first high-end gaming pc, everything is installed correctly. But when I go to BIOS setup, it shows my CPU is 126 C immediately! :eek: and my motherboard is zero degree? 😨 Also all my fans are spinning but in BIOS, it shows all my fans are zero mph.....

I have a i9-9900k CPU with a Corsair H100i liquid cooler installed. I applied a fair amount of thermal paste, I also installed a 0.1 mm thermal pad between my CPU and the liquid cooler. But when I physically put my fingers on the cooler and CPU, they feel warm but not hot as 126C...

I'm feeling helpless right now... Here's a screenshot of my BIOS screen: View: https://imgur.com/N3hSiOp
 
Aug 29, 2019
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Definitely not way too much... funny thing is if I don't use thermal pad my cooler will fall from the motherboard...............

However I tried to remove thermal pad only use thermal paste and cooler before, but it won't make a difference.
 
Aug 29, 2019
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Well...the cooler falling problem has been solved. But, every time I enter the m-flash mode to update my BIOS, the pc won't reboot after all, starts 2 seconds then shuts down immediately...
 

Artur_Mustafin

Commendable
Jul 5, 2017
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1,510
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Hello everyone! :)

I just build my very first high-end gaming pc, everything is installed correctly. But when I go to BIOS setup, it shows my CPU is 126 C immediately! :eek: and my motherboard is zero degree? 😨 Also all my fans are spinning but in BIOS, it shows all my fans are zero mph.....

I have a i9-9900k CPU with a Corsair H100i liquid cooler installed. I applied a fair amount of thermal paste, I also installed a 0.1 mm thermal pad between my CPU and the liquid cooler. But when I physically put my fingers on the cooler and CPU, they feel warm but not hot as 126C...

I'm feeling helpless right now... Here's a screenshot of my BIOS screen: View: https://imgur.com/N3hSiOp
  1. remove thermal pad completely, clean from thermalpaste, both CPU and cooler contact surface, and add new thermal paste, but not all 5 or 25G, but just as much as one big rain drop, 0.25G, and use plastic card to make a very thin layer of paste, 0.50±0.25 mm on all CPU contact metal box, 100% covered, then it will works as it meant to be, after hardenenig fix clips for CPU in socket motherboard
  2. reset all BIOS settings to optimized defaults, then install every M/B BIOS update from manufacturer site, since the date being purchased up to date, then reboot and look agan.
  3. Also, you may need to update chipset/vga/pci drivers to latest one corresponding to your system, form M/B site.
  4. Also, update all monitoring software to the latest versions
 
Last edited:
Aug 29, 2019
24
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  1. remove thermal pad completely, clean from thermalpaste, both CPU and cooler contact surface, and add new thermal paste, but not all 5 or 25G, but just as much as one big rain drop, 0.25G, and use plastic card to make a very thin layer of paste, 0.50±0.25 mm on all CPU contact metal box, 100% covered, then it will works as it meant to be, after hardenenig fix clips for CPU in socket motherboard
  2. reset all BIOS settings to optimized defaults, then install every M/B BIOS update from manufacturer site, since the date being purchased up to date, then reboot and look agan.
  3. Also, you may need to update chipset/vga/pci drivers to latest one corresponding to your system, form M/B site.
  4. Also, update all monitoring software to the latest versions
Ok so.... thanks for the detailed instructions but...
The main problem here is my motherboard is faulty. It won't update anything and giving all false temperatures.
 

Third-Eye

Distinguished
Jun 26, 2011
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Ok so.... thanks for the detailed instructions but...
The main problem here is my motherboard is faulty. It won't update anything and giving all false temperatures.
You should go back through the packaging for the cooler and find the stand-off screws and see if you used the wrong ones, because you said earlier that the cooler didnt touch the CPU properly without a pad.
 

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