temperature pc

a causa del PC rumoroso mi sono informata sulle temperature installando lm-sensors e ho ottenuto questi risultati:

atk0110-acpi-0
Adapter: ACPI interface
Vcore Voltage:      +1.23 V  (min =  +0.85 V, max =  +1.60 V)
+12V Voltage:      +12.16 V  (min = +10.20 V, max = +13.80 V)
+5V Voltage:        +5.03 V  (min =  +4.50 V, max =  +5.50 V)
+3.3V Voltage:      +3.36 V  (min =  +2.97 V, max =  +3.63 V)
CPU FAN Speed:     2667 RPM  (min =  800 RPM, max = 7200 RPM)
Chassis FAN Speed:    0 RPM  (min =  800 RPM, max = 7200 RPM)
Power Fan Speed:      0 RPM  (min =  800 RPM, max = 7200 RPM)
CPU Temperature:    +48.0°C  (high = +60.0°C, crit = +95.0°C)
MB Temperature:     +35.0°C  (high = +45.0°C, crit = +95.0°C)

nouveau-pci-0100
Adapter: PCI adapter
temp1:        +72.0°C  (high = +95.0°C, hyst =  +3.0°C)
                       (crit = +125.0°C, hyst =  +2.0°C)
                       (emerg = +130.0°C, hyst = +10.0°C)

devo essere preoccupata?
Ho pulito il PC dalla povere