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I am building a small NAS server, the motherboards is a Intel D2700MUD (fanless) and the PSU is "Ace Outburst 480W". After installing Ubuntu Server, I installed lm-sensors. The output:

coretemp-isa-0000
Adapter: ISA adapter
Core 0:       +38.0 C  (high = +80.0 C, crit = +100.0 C)
Core 1:       +33.0 C  (high = +80.0 C, crit = +100.0 C)

w83627dhg-isa-0290
Adapter: ISA adapter
Vcore:        +1.22 V  (min =  +0.00 V, max =  +1.74 V)
in1:          +1.02 V  (min =  +0.58 V, max =  +1.06 V)
AVCC:         +3.38 V  (min =  +2.78 V, max =  +0.64 V)  ALARM
+3.3V:        +3.38 V  (min =  +0.82 V, max =  +0.59 V)  ALARM
in4:          +1.03 V  (min =  +1.25 V, max =  +0.42 V)  ALARM
in5:          +1.52 V  (min =  +1.78 V, max =  +0.51 V)  ALARM
in6:          +1.02 V  (min =  +0.16 V, max =  +0.10 V)  ALARM
3VSB:         +3.34 V  (min =  +1.65 V, max =  +1.15 V)  ALARM
Vbat:         +3.22 V  (min =  +2.34 V, max =  +1.02 V)  ALARM
fan1:           0 RPM  (min = 2109 RPM, div = 128)  ALARM
fan2:           0 RPM  (min =  458 RPM, div = 128)  ALARM
fan3:           0 RPM  (min =  234 RPM, div = 128)  ALARM
fan4:           0 RPM  (min =  659 RPM, div = 128)  ALARM
fan5:           0 RPM  (min = 5273 RPM, div = 128)  ALARM
temp1:        +44.0 C  (high = +35.0 C, hyst = +32.0 C)  ALARM  sensor = diode
temp2:       +110.5 C  (high = +80.0 C, hyst = +75.0 C)  ALARM  sensor = diode
temp3:        +30.5 C  (high = +80.0 C, hyst = +75.0 C)  sensor = diode
cpu0_vid:    +2.050 V

Do I need to be worried about the voltage alarm on in4,in5,in6.. or temp1/temp2?

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2 Answers

up vote 1 down vote accepted

The limits aren't configured correctly, they're probably defaults or from some other board. For example:

+3.3V: +3.38 V (min = +0.82 V, max = +0.59 V)

That looks reasonable for a 3.3V supply, but the limits are completely out, and the max is lower than the min!

temp2 looks a bit worrying, but that may also be a misconfigured sensor.

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Do you have any tips on finding/calculating reasonable limits? The closest I have found is the motherboard spec but it doesn't say anything about how much voltage diff that's tolerable. downloadmirror.intel.com/20716/eng/D2700MUD_TechProdSpec01.pdf –  pojo Apr 16 '12 at 10:56
    
Afraid not .. there might be something in the BIOS, or you could just log values for 24 hours, average them and round to nearest decimal place, then set a 5% threshold on that. –  pjc50 Apr 16 '12 at 13:05
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Voltages should normally be with 5% in most cases and should be never off by more then 10%. Consult the device specs for exact figures. Ignore voltage tolerance errors only if you have good backups and can afford downtime.

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