PC crashes unexpectedly without any rule behind it

[djgruby]

Hi!

Since some time my PC crashes unexpectedly without any rule behind it. That means it may work perfectly fine for several hours, sometimes only for several minutes... And then it crashes with the following screen being displayed on my monitor (I took a photo of it, as I have no clue about other way of capturing this content):

Can anybody please give me a hint, what might be the cause of this problem or what kind of troubleshooting could I perform? I suspect hardware malfunction, but which component could it be? The only one thing I am sure of is that these are not HDDs, since SMART tests complete without errors... And I am stuck here...

Many thanks in advance for your help!

Best regards,
DJ Gruby.

[EDIT] Ah, forgot to mention that I have tried memtest86+ already. It went for three full rounds without errors... So memory is not the problem here either...

 

[Ghostman 1]

Most of the time when a computer shuts down after awhile of being on is because it is getting to hot...Whats the cpu temp ?

 

[ryannP]

Hello,
What distro is that? Ubuntu or Centos? Anyway, from what i can tell, you get lots of writes on your third partition due to a process in the userspace. What does "iotop" tells?
http://www.manpagez.com/man/1/iotop/

L.E. - also try "atop" http://linux.die.net/man/1/atop



Just bought My new Horize laptop . I'm so proud of it so far.

Intel Core i7-960 3.2-3.4Ghz Processor
Innovation Cooling IC Diamond 24 Carat for CPU + GPU
8GB 1333Mhz RAM (2x 4GB Configuration)
500GB 7200rpm Seagate Hard Disk
nVidia Geforce GTX560M 1.5GB GDDR5

 

[djgruby]

Hey! Thanks a lot for your suggestions. This might sound like a mystery, but it seems like someone else has found the source of instability, which was the bluetooth service... I uninstalled it two days ago, and I have not experienced any crash ever since. So, at the moment my system (Fedora 17) is running fine and stable... I will keep on monitoring it, and if the crash reappers, I will post an update here... However, so far so good. Thanks a lot for help!