temperature CPU thermometer completely wrong

[Hak Bak]

Ok, so I just rebuilt my rig today, and everything has run fine.

 

except for my CPU and cooler

 

1st on fan wouldn’t spin, then I got that working but the idle temperature was being listed in BIOS at 89 C at idle... the fans kicked up as if it was running that hot but it definitely isn’t. It’s physically cool and at POST I either get fan error or heat error, stopping me from booting without any problems...

Specs:

RAM: 2x8gb DDR4 Corsair Vengance LPX 3000MHz

CPU: i7 8700k manufacturuer clocked at 4.8GHz

PSU: Corsair HK850 semi modular

GPU: 1060 6gb

Motherboard: ASUS Z370-P

Cooling: Corsair H100i

[tylerjd]

The first thing that comes to mind is your thermal paste. Did you use the included or your own? If so, you put the CPU cooler on flat down, and tightened the screws in a cross fashion? Is it tightened down all the way?

[Hak Bak]

8 hours ago, tylerjd said:

The first thing that comes to mind is your thermal paste. Did you use the included or your own? If so, you put the CPU cooler on flat down, and tightened the screws in a cross fashion? Is it tightened down all the way?

Yes it is applied and seated properly, still idling at 89...

[Hak Bak]

10 hours ago, Hak Bak said:

Ok, so I just rebuilt my rig today, and everything has run fine.

 

except for my CPU and cooler

 

1st on fan wouldn’t spin, then I got that working but the idle temperature was being listed in BIOS at 89 C at idle... the fans kicked up as if it was running that hot but it definitely isn’t. It’s physically cool and at POST I either get fan error or heat error, stopping me from booting without any problems...

Specs:

RAM: 2x8gb DDR4 Corsair Vengance LPX 3000MHz

CPU: i7 8700k manufacturuer clocked at 4.8GHz

PSU: Corsair HK850 semi modular

GPU: 1060 6gb

Motherboard: ASUS Z370-P

Cooling: Corsair H100i

Nevermind, after switching around the cables a bit it’s detecting the fans and it’s idling at max 31 C, thanks for trying though!