Diagnosing reboot under load

[Micah]

Garrett Cooper wrote:
> Micah wrote:
> 
> 
>>Garrett Cooper wrote:
>>
>>
>>>On Nov 6, 2005, at 2:01 PM, Micah wrote:
>>>
>>>
>>>>Skylar Thompson wrote:
>>>>
>>>>
>>>>>Micah wrote:
>>>>>
>>>>>
>>>>>>My desktop system just started doing this last night.  I was 
>>>>>>upgrading Gnome using the handy shell script they provide.  It 
>>>>>>looks like sometime around 11:30pm the computer reset.  This 
>>>>>>morning I'm trying to reinstall all the software that got lost in 
>>>>>>last night's reset and I get another reset in the middle of 
>>>>>>compiling.  The last message in /var/log/messages before reboot is:
>>>>>>Nov  6 10:41:08 trisha ntpd[489]: kernel time sync enabled 6001
>>>>>>Nov  6 10:58:14 trisha ntpd[489]: kernel time sync enabled 2001
>>>>>>Nov  6 13:02:57 trisha syslogd: kernel boot file is /boot/kernel/
>>>>>>kernel
>>>>>>
>>>>>>I just ran memtest86+ and there's no memory errors.  I'm guessing 
>>>>>>it's a hardware issue, but how do I diagnose it?
>>>>>
>>>>>
>>>>>Could it be a bad power supply? Try swapping in another one and 
>>>>>see what happens.
>>>>
>>>>
>>>>
>>>>I was thinking that too, unfortunately I don't have a spare and was
>>>>hoping to diagnose before buying parts.  Voltages look fine when I 
>>>>check the accessory lines (+5 and +12) with a multimeter under load.
>>>>
>>>>Thanks,
>>>>Micah
>>>
>>>
>>>
>>>    It might not just be a bad power supply, but instead a lack of
>>>power  due to the power supply rating. So my question is, what is the
>>>rating  of the power supply and how many devices (hard drives, ATX
>>>powered  video cards) do you have connected?
>>>-Garrett
>>
>>
>>It had been working fine since I bought it at the beginning of
>>September.  It's a 350 watt PSU running an Asus A8V-E deluxe mobo with
>>an Athlon 64 3000+.  I have one ata 100 hd, one DVD-RW, and one
>>floppy.  For expansion cards I have a PCI-EX vid card (MSI X300se),
>>and an Intel NIC.  Plus the keyboard and two mice and that pretty much
>>accounts for all power drainers.
>>
>>Right now under load the multimeter reads 11.89 on +12, 5.12-5.08 on
>>+5 (did a min/max reading over several minutes on that one) and 3.36
>>on +3.
>>
>>Thanks,
>>Micah
> 
> 
>     Doesn't really sound like a lot, but depending on the amount of
> memory, I wonder since the power rating is _somewhat low_ and depending
> on which area of the world you live in, the amount of current output may
> be higher or lower, based on voltage values output by your power
> supply... Also, is your version of FreeBSD also running in 64 bit mode
> or 32 bit mode?
> -Garrett

I'm running the i386 version of FreeBSD with 1gb ram.  Didn't think to 
check this before, but I'm getting ~112-113 volts into the PSU from the 
surge strip.  I'm probably going to get a new PSU today.  The parts 
store has a couple of 400 watters in the $50 range (a fortron and a 
thermaltake).

I did a lucifer burn-in test last night and got 8 errors over a two hour 
period.  I ran the mprime torture test this morning (after the computer 
had been powered off overnight) and it passed.  I didn't have the 
high-low meter attached to see how the voltages looked.

Thanks,
Micah