[LAU] random system lockups, memtest clean, no idea... Magic sysrq?

[Loki Davison]

On Wed, Nov 19, 2008 at 4:46 PM, david <gnome at hawaii.rr.com> wrote:
> hollunder at gmx.at wrote:
>> On Tue, 18 Nov 2008 21:13:04 -0800
>> Kevin Cosgrove <kevinc at cosgroves.us> wrote:
>>
>>> On 19 November 2008 at 16:11, "Loki Davison" <loki.davison at gmail.com>
>>> wrote:
>>>
>>>> mmm... so a mobo problem... that would be annoying. Does that
>>>> actually happen?
>>> I had to have an ABIT board serviced.  I never did put it back into
>>> my machine.  But yes, it quit powering up.
>>>
>>> --
>>> Kevin
>>
>> It could be possible I guess...
>>
>> My personal situation:
>> The mobo is a couple of years old, I have lockups whenever it comes to
>> apps that need a lot of video-power, like games and even some movies.
>> I tried a couple of video cards (all nvidia tough) without seeing
>> any real changes.
>> The problem occurred in windows as well (I had it installed to play
>> some games) and it didn't matter if I used the nv or binary drivers,
>> after a couple of minutes the machine just locks up.
>> The only explanation I have is that it's some kind of mobo-problem, but
>> now that I just use nv and don't play games anymore it happens rarely
>> when watching movies or something.
>>
>> I heard that logs don't help much in cases like this and that consoles
>> connected via serial cables would be more helpful, but I haven't tried
>> that.
>
> A bit of speculation here. Perhaps the slot the video card is in is just
> slightly low on providing power to the video card. Ordinary use of the
> card works. Heavy duty use (like gaming) makes the card draw more power
> than the slot can actually provide, producing a crash?
>
> I guess, to check this, try a different slot for the video card (if you
> can).
>
> --
> David
> gnome at hawaii.rr.com
> authenticity, honesty, community
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>


Are the voltages provided by lm_sensors useful for diagnosing this? i.e vid v?

Loki