sensors шоу я temperatures like-78°C

I was trying to make my cpu фанат less noisy, at first pwmconfig didn't showed my anything after following в small guide it worked but I still don't know how to decrease the RPM. Now I notice that sensors шоу я following:

it8728-isa-0a30
Adapter: ISA adapter
in0:          +2.22 V  (min =  +0.84 V, max =  +2.32 V)
in1:          +2.22 V  (min =  +2.71 V, max =  +0.48 V)  ALARM
in2:          +2.02 V  (min =  +0.65 V, max =  +2.52 V)
+3.3V:        +3.36 V  (min =  +6.00 V, max =  +4.13 V)  ALARM
in4:          +3.06 V  (min =  +2.74 V, max =  +0.95 V)  ALARM
in5:          +3.06 V  (min =  +2.29 V, max =  +2.24 V)  ALARM
in6:          +2.22 V  (min =  +2.50 V, max =  +1.45 V)  ALARM
3VSB:         +3.29 V  (min =  +0.17 V, max =  +2.16 V)  ALARM
Vbat:         +3.22 V  
fan1:        2647 RPM  (min =  631 RPM)
fan2:           0 RPM  (min =   85 RPM)  ALARM
fan3:           0 RPM  (min =   28 RPM)  ALARM
temp1:        -68.0°C  (low  = +22.0°C, high =  +5.0°C)  sensor = thermal diode
temp2:        +23.0°C  (low  = -87.0°C, high = -73.0°C)  ALARM  sensor = thermal diode
temp3:        -77.0°C  (low  = -11.0°C, high = +37.0°C)  sensor = Intel PECI
intrusion0:  ALARM

гm worried about that-68°C and-77°C

Have I messed with some configuration? How хан I fix it? Windows In the фанат ты существуешь always been way quieter. I was searching the Интернет but only found how to fix sensors by runing sensors-detect which I already did.

Sorry for my bad english and I hope you хан help я :)