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Odd voltages and USB problems


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Earlier today, I plugged my external harddrive into my computer after moving it to a different part of the desk, and I started getting odd errors from the drive, and it refused to connect. A few minutes ago, I checked up on my sensors, and lo and behold, the -5V sensor is listed as being at -1.72V...

 

My only guess is that I knocked something loose, and I tried to figure out what to push in better, but i'm at a loss as to where to even start.

 

Can anyone tell me what this sensor is monitoring, and what I can do to figure out where the problem is? I hope it's a bad connection and not a bad motherboard or power supply.

 

Cheers,

 

~Kyle

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Yeah, I don't remember checking while it isn't plugged in... Sorry

 

I'm currently in my basement now for a Tornado Warning with my laptop, so I won't be able to try anything for awhile... I'll try SSHing into the box to see if the drive is currently plugged in, and what the sensors say.

 

Another change that I made was that I plugged in a PCI wireless card.

 

I actually had the USB problem once before, but only once and now it's constant. I don't know if the USB problem is related, but I need to get his fixed before I feel like I can debug that problem. You know what they say, start at the hardware level first... and voltages are pretty dang low-level.

 

~Kyle

 

EDIT:

 

VCore 1:   +1.33 V  (min =  +1.42 V, max =  +1.57 V)   ALARM

VCore 2:   +1.18 V  (min =  +2.40 V, max =  +2.61 V)   ALARM

+3.3V:	 +3.31 V  (min =  +3.14 V, max =  +3.47 V)   

+5V:	   +4.92 V  (min =  +4.76 V, max =  +5.24 V)   

+12V:	 +12.03 V  (min = +11.39 V, max = +12.61 V)   

-12V:	 -15.82 V  (min = -12.63 V, max = -11.41 V)   ALARM

-5V:	   -1.72 V  (min =  -5.26 V, max =  -4.77 V)   ALARM

Stdby:	 +4.97 V  (min =  +4.76 V, max =  +5.24 V)

 

It looks like quite a few voltages are "ALARM"ing... I had only been looking at the graphical sensors and not the command line. Does this mean my PSU is bad?

 

Yes, the drive is currently plugged in.

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Okay.

 

I unplugged the USB drive and the wireless card.

 

I still get five alarms, the four voltage alarms and a fan alarm (the fan's going at 2.5k rpm instead of 3k... *shrug* maybe related to the voltage issues?)

 

No change, the voltages still reflect almost exactly what they did before.

 

VCore 1:   +1.34 V  (min =  +1.42 V, max =  +1.57 V)   ALARM

VCore 2:   +1.18 V  (min =  +2.40 V, max =  +2.61 V)   ALARM

+3.3V:	 +3.33 V  (min =  +3.14 V, max =  +3.47 V)   

+5V:	   +4.92 V  (min =  +4.76 V, max =  +5.24 V)   

+12V:	 +12.03 V  (min = +11.39 V, max = +12.61 V)   

-12V:	 -15.82 V  (min = -12.63 V, max = -11.41 V)   ALARM

-5V:	   -1.72 V  (min =  -5.26 V, max =  -4.77 V)   ALARM

Stdby:	 +4.97 V  (min =  +4.76 V, max =  +5.24 V)   

VBat:	  +3.09 V

fan1:	 2311 RPM  (min =	0 RPM, div = 8)		  

fan2:		0 RPM  (min = 3013 RPM, div = 8)		  

fan3:	 1721 RPM  (min = 3013 RPM, div = 8)		  ALARM

M/B Temp:	+20 C  (low  =   +15 C, high =   +40 C)   sensor = diode   

CPU Temp:	+31 C  (low  =   +15 C, high =   +45 C)   sensor = thermistor   

Temp3:	   +38 C  (low  =   +15 C, high =   +45 C)   sensor = thermistor

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*thinks*

 

um...you wouldn't happen to have a multimeter around, would you? That would give you accurate readings of what your PSU is actually putting out. A conversation with Antec might be a little helpful, I'm not too sure. When I've had problems with a PSU, it's been it not working.

 

*scratches head*

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@etherealflaim

 

Your 5V and 12V rails look pretty stable. If the 5V rail is dropping low it would be a PSU problem.

 

You probably don't have a -5V rail on that PSU so don't worry about it.

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