On Sunday 20 May 2007, Edward Ruggeri wrote:
> On Sun, 20 May 2007 11:41:36 -0500, Roland Smith <[EMAIL PROTECTED]> wrote:
> > On Sun, May 20, 2007 at 11:03:25AM -0500, Edward Ruggeri wrote:
> >> Hi,
> >> My system randomly reboots, usually in the evening. It is definitely
> >> not a
> >> soft reboot, since the filesystems don't get properly dismounted. My
> >> suspicion is that it is a heat related issue -- I do leave the computer
> >> running just about all day long, and it has started to get warm. Then
> >> again, it's coolest in the evening...
> > Try and install the mbmon port, and see if it works on your machine. If
> > so, start a cron job that appends mbmon output to a file say every 15
> > minutes. If it's a heat buildup issue in a monitored component, it would
> > show.
> > I wonder though. My machine usually doesn't need a day to heat up after
> > a cold start. An hour or so usually suffices.
In my experience this kind of problem can also be caused by bad memory.
> > Other causes could be a spike in the line voltage due to a large device
> > switching on or off nearby. Or an underrated power supply overloaded
> > through a cron job.
> > Roland
> Thanks for the ideas, Roland (and Tamouh)! I forgot about the possibility
> of power issues. I do have an Antec power supply, 500W, which certainly
> doesn't mean it isn't the problem, but it _ought_ to be able handle this
> But here's what I get if I run mbmon.
> %mbmon -A -t -r 1
> TEMP0 : 39.0
> TEMP1 : 34.0
> TEMP2 : 25.0
> FAN0 : 0
> FAN1 : 5818
> FAN2 : 0
> VC0 : +1.28
> VC1 : +1.50
> V33 : +3.30
> V50P : +4.97
> V12P : +11.13
> V12N : -11.52
> V50N : -3.76
> Sun May 20 12:32:10 CDT 2007
> That CPU temp is at about 97% idle -- high, no? The voltage on the 12V
> lines seems pretty bad, and especially so on the -5V line. Should I trust
> the sensors and think about a new PSU? In the meantime, I'll write to a
> file, and see if it records a dip in power before the next reboot.
I wouldn't trust it to report correct (absolute) values. I've seen
motherboards report values _way_ off.
Pieter de Goeje
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