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#1 2005-09-19 19:07:56

robot5x
Member
Registered: 2004-01-26
Posts: 266

Sensors voltage readings

Hi all -
Managed to set up lm_sensors at long last. The CPU temp is useful, but the rest of the info doesn't mean anything to me. I noticed that some of the voltage readings fall outside of the min and max, and have ALARM next to them.
Should I be worried?

[robot5x@domu ~]$ sensors
it8712-isa-0290
Adapter: ISA adapter
VCore 1:   +0.98 V  (min =  +1.42 V, max =  +1.57 V)   ALARM
VCore 2:   +1.62 V  (min =  +2.40 V, max =  +2.61 V)   ALARM
+3.3V:     +6.46 V  (min =  +3.14 V, max =  +3.46 V)   ALARM
+5V:       +4.92 V  (min =  +4.76 V, max =  +5.24 V)   
+12V:     +11.39 V  (min = +11.39 V, max = +12.61 V)   ALARM
-12V:     -16.07 V  (min = -12.63 V, max = -11.41 V)   ALARM
-5V:       -2.35 V  (min =  -5.26 V, max =  -4.77 V)   ALARM
Stdby:     +4.89 V  (min =  +4.76 V, max =  +5.24 V)   
VBat:      +3.01 V
fan1:     3183 RPM  (min =    0 RPM, div = 8)          
fan2:     5273 RPM  (min =  664 RPM, div = 8)          
fan3:        0 RPM  (min =  664 RPM, div = 8)          
M/B Temp:    +35°C  (low  =   +15°C, high =   +40°C)   sensor = diode   
CPU Temp:    +33°C  (low  =   +15°C, high =   +45°C)   sensor = thermistor   
Temp3:       +29°C  (low  =   +15°C, high =   +45°C)   sensor = thermistor   

eeprom-i2c-0-51
Adapter: SMBus nForce2 adapter at 4c40
Memory type:            DDR SDRAM DIMM
Memory size (MB):       512

eeprom-i2c-0-50
Adapter: SMBus nForce2 adapter at 4c40
Memory type:            DDR SDRAM DIMM
Memory size (MB):       512

ds1621-i2c-1-4e
Adapter: SMBus nForce2 adapter at 4c00
temp:      +0.00°C  (low  =  +0.0°C, high =  +0.0°C)

I've got an amd64 3000 on a DFI Lanparty nf3 mainboard, and a coolermaster 430w PSU.
Thanks for any tips!

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#2 2005-09-19 19:53:11

ghostwalker
Member
From: Tacoma, WA
Registered: 2004-07-28
Posts: 140

Re: Sensors voltage readings

How big of a power supply do you have. It looks a bit weak.


P4 2.8Ghz @ 2.8Ghz SL6WT
Zalman CNPS7000-Cu
865PE Neo-2 LS BIOs 2.4
512mb Mushkin Level II
160GB Maxtor HD
Geforce 4 440MX
Antec 3700 1 exhaust and 1 intake fans
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#3 2005-09-19 21:42:12

robot5x
Member
Registered: 2004-01-26
Posts: 266

Re: Sensors voltage readings

robot5x wrote:

and a coolermaster 430w PSU.

smile
the mainboard manual recommend at least 400, so I guessed this would be enough?? maybe not...

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#4 2005-09-19 23:43:34

ghostwalker
Member
From: Tacoma, WA
Registered: 2004-07-28
Posts: 140

Re: Sensors voltage readings

That should be enough? Yet, what is the amperage output for 12v, 5v, etc.? How many devices are you powering? CD, fans, etc.


P4 2.8Ghz @ 2.8Ghz SL6WT
Zalman CNPS7000-Cu
865PE Neo-2 LS BIOs 2.4
512mb Mushkin Level II
160GB Maxtor HD
Geforce 4 440MX
Antec 3700 1 exhaust and 1 intake fans
Linux 2.6.x
Linux user 314187
ArchLinux

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#5 2005-09-19 23:44:52

ghostwalker
Member
From: Tacoma, WA
Registered: 2004-07-28
Posts: 140

Re: Sensors voltage readings

BTW, execellent temps.


P4 2.8Ghz @ 2.8Ghz SL6WT
Zalman CNPS7000-Cu
865PE Neo-2 LS BIOs 2.4
512mb Mushkin Level II
160GB Maxtor HD
Geforce 4 440MX
Antec 3700 1 exhaust and 1 intake fans
Linux 2.6.x
Linux user 314187
ArchLinux

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#6 2005-09-20 07:28:16

robot5x
Member
Registered: 2004-01-26
Posts: 266

Re: Sensors voltage readings

ghostwalker wrote:

what is the amperage output for 12v, 5v, etc.?

Not sure how I'd find that out, to be honest...
The PSU is currently powering two hard disks, dvd writer, pci NIC card and a ridiculous monster of a nvidia gfx card (two fans), plus the cpu fan and chipset fan (which tends to sound a bit 'growly').
Nothing too harcore, but I would guess that the nvidia card would be comsuming a LOT of power.
Are the readings I posted likely to damage anything? If I did get a bigger power supply, could I expect them to then fall within an acceptable range?
Thanks a lot for your help.

ghostwalker wrote:

BTW, execellent temps.

at least somethings going right! smile

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#7 2005-09-20 07:56:35

ghostwalker
Member
From: Tacoma, WA
Registered: 2004-07-28
Posts: 140

Re: Sensors voltage readings

You do have a quite a bit on the power supply. You are right that video card is really consuming alot. Do your hard drives make noise?
You can look at the power supply it should say the amperage on the side.


P4 2.8Ghz @ 2.8Ghz SL6WT
Zalman CNPS7000-Cu
865PE Neo-2 LS BIOs 2.4
512mb Mushkin Level II
160GB Maxtor HD
Geforce 4 440MX
Antec 3700 1 exhaust and 1 intake fans
Linux 2.6.x
Linux user 314187
ArchLinux

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#8 2005-09-20 09:02:08

robot5x
Member
Registered: 2004-01-26
Posts: 266

Re: Sensors voltage readings

hard drives don't make any noise, but the chipset fan does... especially when first booting up.
Here's the spec on my power supply -
+3.3V = 25A
+5V = 32A
+12V = 19A
-12V = 0.8A
+5VSB = 2A

edit: just took a closer look at things. if I start glxgears I can hear fans slowing down - as if they're struggling. If i stop it then they speed back up again!

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#9 2005-09-20 09:56:53

Mr Green
Forum Fellow
From: U.K.
Registered: 2003-12-21
Posts: 5,750

Re: Sensors voltage readings

Do you have system stats in BIOS that may help with settings ...

Get some cooling before you o/c that box lol


Mr Green

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#10 2005-09-20 19:45:54

robot5x
Member
Registered: 2004-01-26
Posts: 266

Re: Sensors voltage readings

Hi green -
the same readings are reported in the BIOS, although there's so many options and menus there I'm almost afriad to touch anything.
Think I'll test a decent 550 on this setup to see what happens (although 430 should definitely be enough)... some nice people over at the coolermaster forum also suggested testing the true voltage with a multimeter, since if my +3.3V reading is really +6.46V then my system would be toast.

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#11 2005-09-20 20:05:33

rayjgu3
Member
From: Chicago IL usa
Registered: 2004-07-04
Posts: 692

Re: Sensors voltage readings

do you know the brand of the power supply
when i look to buy a power supply i look to  antec  i have got a 400true
this thing is really dead on with its stats and doesnt vary much from them
ive seen others fluxuate alot in thier readings (mostly cheap ones)
i know in the past you could bet on alot of problems
with a cheap power supply running an amd chip
did you build this yourself ? if so was the power supply pretty heavy (a few pounds)
or not that heavy maybe a pound
its not a true test on PS but its kinda true the heavier the better
its been my experience ,  im not a true techno geek just semi
at least thats what i tell people
good luck

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#12 2005-09-21 13:58:26

ghostwalker
Member
From: Tacoma, WA
Registered: 2004-07-28
Posts: 140

Re: Sensors voltage readings

http://www.jscustompcs.com/power_supply/ go to this site and see what you get. I would add 25 watts to be safe.


P4 2.8Ghz @ 2.8Ghz SL6WT
Zalman CNPS7000-Cu
865PE Neo-2 LS BIOs 2.4
512mb Mushkin Level II
160GB Maxtor HD
Geforce 4 440MX
Antec 3700 1 exhaust and 1 intake fans
Linux 2.6.x
Linux user 314187
ArchLinux

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#13 2005-09-21 17:33:19

robot5x
Member
Registered: 2004-01-26
Posts: 266

Re: Sensors voltage readings

thanks ghostwalker - very useful link...
apparently I need about 285W. Any way you look at it, 430 should be loads... I'll try this other unit then start to think about hooking up a multimeter...
computers, eh?
roll

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#14 2005-09-22 00:19:17

jftaylor21
Member
From: Arch Linux Forums
Registered: 2004-02-21
Posts: 237

Re: Sensors voltage readings

does anyone know how lm_sensors comes up with the alarm range? Mine looks a little different from robot5x's. For example, look at the range on the -5V. It says that it should be between +4.03V and +4.03V. Mine says -7.06V, so it pops up an alarm. It's like that on a few other settings as well. Also Temp3, whatever that is, is supposedly 127 degrees celsius which is 260 degrees fahrenheit. Somehow, I don't believe this.

it8712-isa-0290
Adapter: ISA adapter
VCore 1:   +1.39 V  (min =  +4.08 V, max =  +4.08 V)   ALARM
VCore 2:   +2.56 V  (min =  +4.08 V, max =  +4.08 V)   ALARM
+3.3V:     +6.46 V  (min =  +8.16 V, max =  +8.16 V)   ALARM
+5V:       +4.97 V  (min =  +6.85 V, max =  +6.85 V)   ALARM
+12V:     +11.71 V  (min = +16.32 V, max = +16.32 V)   ALARM
-12V:     -19.87 V  (min =  +3.93 V, max =  +3.93 V)   ALARM
-5V:       -7.06 V  (min =  +4.03 V, max =  +4.03 V)   ALARM
Stdby:     +1.96 V  (min =  +6.85 V, max =  +6.85 V)   ALARM
VBat:      +2.69 V
fan1:      807 RPM  (min =  811 RPM, div = 8)          ALARM
fan2:        0 RPM  (min =  811 RPM, div = 8)
fan3:        0 RPM  (min =    0 RPM, div = 8)
M/B Temp:    +35°C  (low  =    -1°C, high =    -1°C)   sensor = diode
CPU Temp:    +30°C  (low  =    -1°C, high =    -1°C)   sensor = thermistor
Temp3:      +127°C  (low  =    -1°C, high =    -1°C)   sensor = thermistor

eeprom-i2c-2-50
Adapter: SMBus nForce2 adapter at 4c00
Memory type:            DDR SDRAM DIMM
Memory size (MB):       512

eeprom-i2c-0-50
Adapter: saa7130[0]
Unknown EEPROM type (255).

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#15 2005-09-22 01:39:58

ghostwalker
Member
From: Tacoma, WA
Registered: 2004-07-28
Posts: 140

Re: Sensors voltage readings

everything is set in /etc/sensors.conf
Most of the time you can disregard temp3 on most M/B.


P4 2.8Ghz @ 2.8Ghz SL6WT
Zalman CNPS7000-Cu
865PE Neo-2 LS BIOs 2.4
512mb Mushkin Level II
160GB Maxtor HD
Geforce 4 440MX
Antec 3700 1 exhaust and 1 intake fans
Linux 2.6.x
Linux user 314187
ArchLinux

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#16 2005-09-22 20:40:54

jftaylor21
Member
From: Arch Linux Forums
Registered: 2004-02-21
Posts: 237

Re: Sensors voltage readings

Thanks alot, but I'm just curious what does temp3 correspond to?

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#17 2005-09-22 22:33:56

ghostwalker
Member
From: Tacoma, WA
Registered: 2004-07-28
Posts: 140

Re: Sensors voltage readings

On some M/B's the northbridge has a temp sensor and temp3 usually is that temp sensor.


P4 2.8Ghz @ 2.8Ghz SL6WT
Zalman CNPS7000-Cu
865PE Neo-2 LS BIOs 2.4
512mb Mushkin Level II
160GB Maxtor HD
Geforce 4 440MX
Antec 3700 1 exhaust and 1 intake fans
Linux 2.6.x
Linux user 314187
ArchLinux

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